v7 Hardware Certification Test Suite 1 Technical Notes
Contents
1. Q redhat v7 Hardware Certification Test Suite 1 Technical Notes Technical Information Concerning v7 Product Releases Edition 4 Brian Forte Florian Nadge Jaromir Hradilek v7 Hardware Certification Test Suite 1 Technical Notes Technical Information Concerning v7 Product Releases Edition 4 Brian Fort Red Hat Engineering Content Services Florian Nadge Red Hat Engineering Content Services fnadge redhat com Jaromir Hradilek Red Hat Engineering Content Services jhradile redhat com Legal Notice Copyright 2010 2012 Red Hat Inc This document is licensed by Red Hat under the Creative Commons Attribution ShareAlike 3 0 Unported License If you distribute this document or a modified version of it you must provide attribution to Red Hat Inc and provide a link to the original If the document is modified all Red Hat trademarks must be removed Red Hat as the licensor of this document waives the right to enforce and agrees not to assert Section 4d of CC BY SA to the fullest extent permitted by applicable law Red Hat Red Hat Enterprise Linux the Shadowman logo JBoss MetaMatrix Fedora the Infinity Logo and RHCE are trademarks of Red Hat Inc registered in the United States and other countries Linux is the registered trademark of Linus Torvalds in the United States and other countries Java is a registered trademark of Oracle and or its affiliates XFS is a trademark of Silicon Graphics Internation2. There has been a system error Platform not found This update corrects this omission running any v7 test test name now includes the required platform as expected BZ 573757 Previously when running v7 plan v7 did not check if the base system supported virtualization This update adds such a check and removes fv_ test planning when run on Red Hat Enterprise Linux 4 x Enhancements BZ 192245 Previously running v7 test info called the sysreport utility to gather information about a system s hardware and configuration On Red Hat Enterprise Linux 5 and later however sysreport has been replaced with sos Sos currently emulates calls to sysreport so the above command still works as expected There is no known plan to change the behavior of sos in this regard Nonetheless relying on this external behavior is unsafe and with this update v7 uses its existing version checks to establish which utility to call On Red Hat Enterprise Linux 4 x the v7 test info command still calls sysreport On Red Hat Enterprise Linux 5 and later however the same command now explicitly calls the sos utility BZ 488145 When a new test plan is created v7 now checks the test list for any required packages that are not installed If required but not installed packages are found a prompt is presented asking if they can be installed 29 v7 Hardware Certification Test Suite 1 Technical Notes If the user agrees v7 passes the required but not in
3. command The list of open test classes is compared to possible test classes after the list of tests for which the v7 test suite already has passing results is removed from the running plan BZ 843600 With this update the storage test uses the udev device manager instead of the deprecated HAL for hardware detection in test planning and execution BZ 843602 With this update the optical disk tests for cdrom dvd and bluray use the udev device manager instead of the deprecated HAL for hardware detection in test planning and execution Note Please put a disk in the device drive before you do v7 plan if you want to ceritify in RHEL6 3 or prior releases due to a known issue in Red Hat Enterprise Linux 6 3 or earlier releases BZ 843604 With this update the expresscard test uses the udev device manager instead of the deprecated HAL for hardware detection in test planning and execution BZ 843606 With this update the infiniband test uses the udev device manager instead of the deprecated HAL for hardware detection in test planning and execution BZ 843607 With this update the audio test uses the udev device manager instead of the deprecated HAL for hardware detection in test planning and execution BZ 843608 With this update lid test reads data from the proc interface instead of the deprecated HAL information for hardware detection in test planning and execution BZ 843609 With this update the network test uses the
4. 12 4 v7 release 1 3 including known problems resources and other issues Read this document before using this release of v7 Bug Fixes BZ 485212 Previously the v7 plan add command may have ended up with irrelevant UDI information in the cpuscaling test With this update the cpuscaling test is no longer associated with a logical CPU device and only one instance is executed during testing As a result running the v7 plan add command no longer causes the cpuscaling test to end up with irrelevant UDI information BZ 579498 Due to an incorrect assumption that the maximum turbo boost value is 10 an attempt to run the cpuscaling test on a Nehalem EX based platform failed with an error message similar to the following Error measured speedup vs expected speedup is 22 1 and is not within 10 0 margin With this update this error no longer occurs and the cpuscaling works correctly on Nehalem EX based platforms BZ 589425 Due to an error in version 1 2 of the v7 test suit the info test only printed the major version of Red Hat Enterprise Linux This update corrects this error and the info test now displays both major and minor version as expected BZ 589739 Previously the cpuscaling test incorrectly included unprocessed tags in its output With this update the output of the cpuscaling test no longer contain unprocessed tags BZ 589806 The previous version of the v7 8 manual did not contain a correct version
5. BZ 573144 The increased size of sos reports means v7 results rpm files may larger than 20 MB the limit imposed by Red Hat Bugzilla for file submissions With this update v7 no longer includes the data from sos s SELinux module nor its Progress Bar in test results This greatly reduces the size of results xm1 and consequently the size of results rpm BZ 573670 If v7 was installed and then v7 plan run on a fresh Red Hat Enterprise MRG Messaging Realtime Grid instance a runtime dependency message presented as follows 28 6 v7 release 1 1 info requires kernel rt develrt The following rpms are required for testing kernel rt develrt Would you like to install them now y n The required package name listed above was incorrect This update corrects this in the above circumstance the required package is now correctly listed as kernel rt devel no trailing rt and the associated rpms rteval loads rt tests rt setup kernel rt devel rteval are now listed as being required for testing K The above message only presented if var v7 results xml did not exist ie it presented the first time v7 was run or if var v7 results xm1 was deliberately deleted BZ 573745 The results of any v7 test run were missing the required platform the value used by the Red Hat Hardware Catalog to determine the architecture used to create a given results package Consequently attempting to check test results in failed with an error as follows
6. To prevent this error the cpuscaling test has been updated to terminate immediately when the CPU load test fails BZ 641157 14 4 v7 release 1 3 When running the v7 print command the fencing test could incorrectly display AUTO as a result even when it finished successfully With this update the fencing test has been corrected to display PASS when it succeeds or FAIL when it fails BZ 642029 When an USB SCSI tape was already connected an attempt to run the v7 plan command caused v7 to terminate unexpectedly with the following error UnicodeEncodeError ascii codec can t encode characters in position 13 20 ordinal not in range 128 This update fixes this error and the v7 plan command can now be executed even when a USB SCSI tape has been already connected BZ 646277 Previously the core test incorrectly returned success even when clock jitter error occurred This update ensures that when the clock jitter error occurs the core test now correctly reports failure BZ 649314 The previous version of v7 incorrectly terminated with exit status 1 after a successful run This error has been fixed and when v7 finishes successfully it now terminates with exit status O as expected BZ 649444 When a user attempted to run a v7 test on a system without SELinux running in enforcing mode the test failed With this update v7 has been adapted to inform users that SELinux must be running in enforcing mode and
7. a plugged in USB device returning the following error instead Running usb py USB test Note could not detect USB devices via HAL using proc How many USB sockets are required to be tested response 1 testing socket 1 of 1 Please plug in a USB device continue y n response y device not found testing socket 1 of 1 Please plug in a USB device continue y n response y device not found testing socket 1 of 1 Please plug in a USB device continue y n response n finished running usb py exit code 1 This update corrects the proc file system reading errors and USB devices are now detected when plugged in as expected BZ 568465 Previously info py did not check for the Real Time RT kernel flavor Consequently when run on a system running the MRG RT kernel v7 returned a This kernel was not built by Red Hat error info py now checks for rt in the architecture section of kernel package RPM names and v7 returns the correct information when run on RT based systems BZ 568468 6 v7 release 1 1 If the v7 info test was run on a system running the MRG RT kernel the log contained multiple Cannot read whitelist file errors An ABI Whitelist is not generated for the MRG RT kernel and as of this update v7 no longer checks for an ABI Whitelist when run on MRG RT kernel based system BZ 568492 If the video test was run on a system not running X Windows eg a system running at run level 3 v7 failed w
8. allows processing of sub process pipes line by line This line by line processing prevents the traceback error and allows the memory test to run BZ 559179 When run on systems running Red Hat Enterprise Linux 4 x an omission in the device test meant only general tests info memory profiler and core were planned device specific tests were not planned This update corrects that omission and now device specific tests such as usb network video dvd cdrom storage memory and audio are planned as expected BZ 560635 On some versions of Red Hat Enterprise Linux v7 was not able to parse etc redhat release correctly causing info test failures and returning unhelpful error messages such as Error could not determine kernel RPM name Error This kernel was not built by Red Hat This update introduces a new v7 class RedHatRelease This class replaces the old getRedHatRelease function and is used for all tests and the v7 harness This new class handles all extant versions of the etc redhat release file and will make it easier to deal with any variations that may present going forward BZ 560797 On systems with no USB bus e g S 390s v7 crashed with an exception error This update improves the Device Detection routines to handle this exception BZ 563762 A text transposition typo in info py caused v7 to require a non existent package kernelxen devel be installed in some circumstances The transposition typo was corre
9. conf configuration file the reboot NFS test may have failed to resolve the IP address when the kexec kernel attempted to store the vmcore file on an NFS server With this update the reboot test has been replaced with kdump which sets the 1ink delay value to 60 seconds This ensures that the kexec kernel has enough time to obtain the IP address before attempting to save the core dump on an NFS server BZ 726512 Previous versions of the v7 test suite installed an old copy of Python s decimal module that is 3 v7 release 1 4 required by the cpuscaling test This module was originally included to provide support for Red Hat Enterprise Linux 4 which did not include it as part of the Python 2 3 installation However on Red Hat Enterprise Linux 5 and 6 this module is shipped with the Python programming language itself Since the decimal module installed with v7 took precedence over the version distributed with Python and since it is no longer required for v7 to provide its own version of this module this update removes it from the package BZ 731611 Due to a regression introduced since version 1 1 of the v7 test suite the udp test was accidentally omitted from the network test This update applies a patch that re includes the udp test so that it is now executed during the network test as expected BZ 732463 In v7 1 3 the v7 save command incorrectly reported success even when no tests had been executed and the produced results xml file
10. error output with missing line breaks To make it easier for users to read such output this update ensures that all error messages are terminated with a newline character BZ 678949 On some architectures the profiler test may have been unable to start the oprofiled service This update corrects this error and oprofiled can now be successfully started on all supported architectures BZ 681470 On systems with a comma in the system name field an attempt to run the v7 submit command failed with the following error Error failed to generate results rpm With this update the underlying source code has been adapted to omit commas when determining the name for an RPM package and the presence of commas in the system name no longer causes the v7 submit command to fail BZ 681737 Previously the core test incorrectly reported PASS as a test result even when it failed to locate the var log messages file This error has been fixed and when the var log messages file is missing the core test now correctly reports FAIL BZ 682115 Due to certain commands writing to standard error the fv_core fv_memory fv_network and fv_storage tests could incorrectly report an error even when they finished successfully This error has been fixed and messages written to standard error no longer cause these tests to fail BZ 682969 Previously the v7 certify command failed to return a proper exit status when it finished successfully T
11. performed the read and write testing in an order similar to the following v7 Hardware Certification Test Suite 1 Technical Notes write with 1024 bytes write with 2048 bytes write with 65536 bytes read with 1024 bytes read with 2048 bytes read with 65536 bytes This rendered the storage test unable to verify the data because the old data was always overwritten by a subsequent operation This error has been fixed and the test has been adapted to perform the read and write operations in the correct order write with 1024 bytes read with 1024 bytes and verifying write with 2048 bytes read with 2048 bytes and verifying write with 65536 bytes read with 65536 bytes and verifying BZ 736679 In version 1 3 of the v7 test suite the storage test set the enable aio option for both buffered and raw I O testing This was incorrect because raw I O should not be buffered With this update this error has been fixed and when testing raw I O the storage test now uses the flags direct option instead BZ 740002 In v7 1 3 the info test may have failed to verify the ABI whitelist on some systems because certain module symbols could not be dumped using the nm command This update adapts the info test to use the modprobe dump modversions instead resolving this issue BZ 743609 In v7 1 3 the cpuscaling UserSpace test may have failed with the following error Error could not repeat load test times within 5 0 This happen
12. prompt them to choose whether to continue or not BZ 649520 On 32 bit Red Hat Enterprise Linux 5 systems running the v7 plan command did not add fv_core fv_memory fv_network and fv_storage to the test plan This error has been fixed and these tests are now included in the plan as expected BZ 649729 Previously the fv_core fv_memory fv_network and fv_storage tests could fail wnen KVM modules were not loaded into the kernel This update ensures that when the KVM modules are not loaded v7 attempts to load them first BZ 654960 When kernel validation failed the previous version of the info test incorrectly reported PASS This error has been fixed and failed kernel validation now causes the info test to report FAIL as expected BZ 660214 Previously the test runs that include the reboot test issued the info test twice before and after a reboot Since this may have rendered the resulting output difficult to comprehend this 15 16 v7 Hardware Certification Test Suite 1 Technical Notes update adapts the underlying source code not to re run the info test upon a system reboot BZ 674375 Previously the v7 certify command failed to add tests for multiple devices if one of these devices had already passed This error no longer occurs and when one of the devices passes the test the remaining devices can still be added as expected BZ 678642 When the previous version of v7 encountered an error it produced
13. server due to mismatching addresses This update modifies the http transfer test for IPv6 so that the v7 network test no longer fails BZ 732922 Prior to this update the cpuscaling test displayed a misleading Python traceback if the test was run on the xen kernel This update modifies the underlying code to send the message that the cpuscaling test is not available and exits as expected BZ 754919 Prior to this update the bluray test could under certain circumstances choose the wrong media type This update modifies the bluray py code to choose the most capable media type to test BZ 760755 Prior to this update the info test displayed a misleading Python traceback if a currently used module did not have a srcversion entry This update modifies the underlying code to send the message Error could no find module file for no srcver mod and exit as expected BZ 781243 Prior to this update the info test did not correctly capture modules which were tainted for multiple signs This update modifies the underlying code so that the info test now successfully captures modules with multiple tainted signs BZ 823461 Prior to this update the v7 test suite failed to check module symbols in Red Hat Driver Update Program DUP packages This update modifies the underlying code to correctly check the module symbols Enhancements BZ 488745 This update adds the new infiniband test to the v7 test suite which is a sanity test to de
14. the fv_ tests such as fv_ core or fv_storage were incorrectly tagged as interactive which caused them to report incorrect test results This update ensures that the fv_ tests are tagged properly and produce correct results BZ 708046 In version 1 3 of the v7 test suite an attempt to run the info test may have failed with a traceback when a third party module existed or when the module did not belong to any of the installed packages With this update the info test no longer displays a traceback in these situations BZ 711161 In v7 1 3 supplying a non integer or empty value as a prompt response caused the usb test to raise an exception This update adapts the usb test to recognize invalid user input and when a non zero value or an empty string is supplied the test now prompts the user to provide a correct value BZ 714848 In version 1 3 of the v7 test suite the presence of a Technology Preview module during testing caused the info test to display a warning message and fail This may have been confusing for the user because warning messages are not supposed to result in a test failure With this update this error no longer occurs and a proper error message is now displayed in this situation BZ 716557 In v7 1 3 the rteval test incorrectly reported failure when the latency exceeded 100 us In v7 1 4 the acceptable maximum latency has been extended to 150 us BZ 717779 In v7 1 3 when the 1ink delay was not set in the kdump
15. 22246 Prior to this update the clocktest section of the CORE test was not completely correct As a consequence the CORE test could fail on larger systems for example with 2048 CPUs This update modifies the underlying code and the clocktest works now as expected BZ 871254 Prior to this update the pccard test failed to handle the exception in case that no PC Card device was plugged into the slot As a consequence a traceback could occur This update modifies the pccard test to handle the exception when no PC Card device plugged Now an informative error message is given instead of a traceback BZ 880916 Prior to this update the WLAN test cotnained a mispront As a consequence the subtest Scan Wireless Networks operation ran twice This update modifies the underlying code so that the WLAN test scans the wireless network only once BZ 880986 Prior to this update the VIDEO test incorrectly used the wrong pathway for the driver information on 64 bit systems As a consequence the VIDEO test printed an empty result on 64bit systems This update uses the correct pathway usr lib64 xorg modules drivers on 64 1 v7 release 1 6 bit systems Now the driver information is correctly displayed on 64bit systems Enhancements BZ 843194 With this update v7 supports calling home to the catalog with a given certification ID to retrieve the list of open non confirmed test classes that apply to the certification when using the certify
16. al Corp or its subsidiaries in the United States and or other countries MySQL is a registered trademark of MySQL AB in the United States the European Union and other countries Node js is an official trademark of Joyent Red Hat Software Collections is not formally related to or endorsed by the official Joyent Node js open source or commercial project The OpenStack Word Mark and OpenStack Logo are either registered trademarks service marks or trademarks service marks of the OpenStack Foundation in the United States and other countries and are used with the OpenStack Foundation s permission We are not affiliated with endorsed or sponsored by the OpenStack Foundation or the OpenStack community All other trademarks are the property of their respective owners Abstract v7 is the test portion of Red Hat Enterprise Linux Hardware Certification hwcert The v7 Technical Notes contain important information available at the time of release Table of Contents Table of Contents LV elease 1 16 somni koh e R gra df R a dh eo 2 2 wiGirelease 1 5 saul a A adas 4 3 Vv release 1 4 ewok a eek A os oh seis at ak dara ala A cand tale NE si Rin N 7 4 v7 release 1 3 dis ie om ni Myki nen etn ene Sa NERA ERG lla 12 DVA release 1 2 aunt i Anach H tt da a ha os n a 18 Giv irelease Lil Aa A AS ia 22 A Revision History Lo 33 v7 Hardware Certification Test Suite 1 Technical Notes v7 is the test portion of Red Hat Enterprise Linu
17. ate the v7 test suite automatically fills the values for the vendor make and model fields if these fields are left empty Users of v7 are advised to upgrade to these updated packages which fix these bugs and add these enhancements 3 v7 release 1 4 This section contains important information pertaining to release 1 4 of the v7 Hardware Test Suite including known problems resources and other issues Read this document before using this release of v7 Bug Fixes BZ 521609 In v7 1 3 and previous versions the v7 plan server command incorrectly reported that the server is not running even when the server was running as expected This update corrects this error now running status verification from the system under test SUT is more reliable and no longer produces incorrect warning messages BZ 559834 v7 Hardware Certification Test Suite 1 Technical Notes Due to an error introduced in v7 1 2 running the v7 plan on the Itanium architecture failed to display a list of fv_ tests such as fv_ core or fv_storage With this update this error has been fixed and the aforementioned tests can now be listed as expected on this architecture BZ 702140 Version 1 3 of the v7 test suite did not display the exit status of a test making it difficult for the user to determine whether the test passed or failed This update resolves this issue so that whenever a test finishes PASS or FAIL is displayed to the user BZ 705326 In v7 1 3
18. cted and v7 now notes the real package kernel xen devel is a run time dependency if it is required BZ 565437 redhatrelease py did not parse etc redhat release successfully if the latter file contained the string Beta This caused v7 to fail when run for example on the beta version of 25 v7 Hardware Certification Test Suite 1 Technical Notes Red Hat Enterprise Linux 5 5 With this update redhatrelease py now supports the presence of Alpha or Beta strings in etc redhat release BZ 573837 redhatrelease py did not parse etc redhat release successfully when run on pre release versions of Red Hat Enterprise Linux 6 This caused v7 to fail with a traceback error With this update redhatrelease py and consequently v7 support Red Hat Enterprise Linux 6 BZ 566778 If v7 run was executed without a specified test the application failed with a Traceback error This update adds a check for the test switch If it is not present v7 now exits with a no tests specified to run Error message BZ 567378 Running v7 test memory on x86 based systems running Red Hat Enterprise Linux 5 4 failed with a Traceback error This update improves return value checking on pipe polling and the memory test now works as expected on x86 based systems running Red Hat Enterprise Linux 5 4 BZ 568226 Errors in the way the proc file system was read meant when using release 9 of v7 1 1 on Red Hat Enterprise Linux 4 8 the USB test would not detect
19. d Hat Enterprise Linux 6 the info test no longer runs sosreport with the no progressbar option BZ 598544 Interrupting the v7 process using the Ctrl c keystroke now does not result in corrupted test results 19 v7 Hardware Certification Test Suite 1 Technical Notes BZ 599108 The continue command has been added to allow a user to continue previously interrupted test BZ 599725 Error messages are no longer logged when running the v7 run command BZ 599741 The libvirtd service is now properly started when required BZ 599746 The profiler test no longer fails when etc modprobe conf does not exist BZ 605247 The package now depends on qemu kvm BZ 605277 The 1vs utility is no longer called with an incorrect path BZ 606755 The v7 program no longer fails with the unknown command run error message BZ 606963 Running the storage test on Red Hat Enterprise Linux 6 now works as expected BZ 607981 The v7 8 man page has been updated to cover all currently supported command line options BZ 608535 The audio test uses sound samples from the usr share sounds alsa directory BZ 608556 During the tape test the tar utility is now correctly run with the P option BZ 612278 The Network File System NFS protocol is now tested over TCP by default BZ 616943 The whitelist file location has been updated for Red Hat Enterprise Linux 6 on 64 bit architectures BZ 616949 The FV tests have be
20. ection contains important information pertaining to release 1 5 of the v7 Hardware Test Suite including known problems resources and other issues Read this document before using this release of v7 Bug Fixes BZ 649675 Prior to this update the xen packages were not installed as dependencies when executing v7 plan This update modifies the the underlying code to add the xen packages to the v7 runtime dependencies if the v7 test suite is running on the xen kernel Now users are prompted to install all necessary xen packages when executing v7 plan BZ 687990 Prior to this update the sosreport command could under certain circumstances fail when running the info test This update modifies the underlying code so that sosreport no longer fails when running info 2 v7 release 1 5 BZ 705999 Prior to this update v7 help did not document the v7 save command This update adds the missing information to the help file and realigns the line verify Now v7 help shows the correct help message for the v7 save command BZ 707144 Prior to this update the bluray test could under certain circumstances fail when attempting to rewrite an already used Blu ray Disc recordable BD R disc This update modifies the underlying code so that the bluray test is now more robust to finish the test run correctly BZ 713368 Prior to this update the v7 network test could fail if IPv6 instead of IPv4 was used for the test data of the client or
21. ed because the load times were not repeatable under user space With this update the aforementioned test has been adapted to only display a warning message and proceed with the testing in this situation BZ 746918 When running the cpuscaling OnDemand test the previous version of the v7 test suite may have failed with the following error Error Could not verify that cpu frequency has settled to the minimum value This update adapts the aforementioned test to only display a warning message in this situation allowing the test to pass if other results are good BZ 747433 Prior to this update the output of the v7 help command contained a typo in the word 10 3 v7 release 1 4 verify erify verify that the configuration is ready for testing With this update this typo has been corrected BZ 747736 In v7 1 3 the profiler test may have terminated unexpectedly with a traceback when it failed to unmount the dev oprofile device This update adapts the profiler test to ignore such a failure resolving this issue Enhancements BZ 573598 Users are now prevented from disabling required tests Such as info or suspend during testing unless they use the debug option When the user supplies the debug option a warning message is still displayed before proceeding with the tests BZ 633652 The bluray test is now capable of testing the BD BD R and BD RE media types and prompts users to choose a media type dur
22. en removed from the test plans on 64 bit architectures 20 5 v7 release 1 2 BZ 616969 The core test no longer fails with TypeError BZ 619252 The CPU scaling test now displays the original frequency along with the new one BZ 619712 The CPU scaling test no longer fails with TypeError on Red Hat Enterprise Linux 6 for 64 Bit PowerPC and IBM System z BZ 619773 The reboot test no longer fails with the Continuation instance has no attribute systemLogBootMarker error message BZ 620672 The Security Enhanced Linux SELinux status is now properly checked BZ 620918 The reboot test now checks the kdump configuration before attempting to panic the kernel BZ 621041 The V7 1 2 14 core test no longer fails on IBM System z Red Hat Enterprise Linux 6 and 64 bit PowerPC Red Hat Enterprise Linux 6 BZ 621056 After issuing the v7 certify m auto command v7 no longer fails after a reboot test BZ 621070 The V7 1 2 14 storage test no longer fails on IBM System z Red Hat Enterprise Linux 6 and 64 bit PowerPC Red Hat Enterprise Linux 6 BZ 621348 A 64 bit PowerPC Red Hat Enterprise Linux 6 now requires the tree rpm in case a core test is run BZ 621364 A memory test no longer fails on Red Hat Enterprise Linux 6 certification BZ 621614 v7 no longer shows an error message during test planning on any systems without a cpuscaling support 21 6 v7 Hardware Certification Test Suite 1 Technical No
23. es were as the test itself noted Confirmed i e plugged in available for testing and detected as such by the test This error presented regardless of the bus the ExpressCard was connected to PCle or USB This update corrects the error in the ExpressCard test when an ExpressCard device is Confirmed the above error message no longer presents and the testing continues as expected BZ 526071 The print command as documented in the COMMANDS section of the v7 man page listed a switch latest to print the most recent test plan or test result This is incorrect the switch is last The man page has been corrected with this update On systems running httpd the HTML page available at http hostname v7 includes links to v7 Test Results and Documentation and a link to the Red Hat Hardware Catalog An error in the anchor tag underlying the Test Results link caused this link to fail with a 404 error This error was corrected and the Test Results link now connects to the cgi which in turn generates an html version of current test results as expected For this update the cgi which generates the web report was also improved making errors and more warnings clearer and providing more detailed data in the generated HT ML BZ 546047 When running the fv_network test which tests networking on a system running as a fully virtualized guest certain network test failures in the guest returned O exit values and were as a consequence mistakenly
24. he script is now correctly xenbr 0 BZ 572606 In some circumstances when running the storage test on S 390s running Red Hat Enterprise Linux 4 x the blkid command failed with a Traceback error File usr share v7 1ib v7 command py line 131 in _getString line self output 0 strip IndexError list index out of range For this update the value against which self output was checked was changed and the Traceback error no longer occurs BZ 572660 If v7 plan was run on a system running Red Hat Enterprise Linux 4 8 that had no extant plan i e a system on which var v7 plan xml was not present the resultant plan added duplicate tests for detected storage devices such as floppy drives optical drives and hard drives With this update v7 now checks for duplicate tests for each optical media family cdrom dvd and bluray as well as for floppy drives and hard drives BZ 573102 Previously if any part of the installed v7 package was modified e g the user manual was deleted from var pubs or one of the test scripts in usr share v7 tests was edited and the info test v7 run t info was run v7 still returned a pass This is incorrect If an installed instance of v7 presents any discrepancies when rpm V v7 is run the info test should not pass With this update the info test now verifies v7 is unmodified and if it is not adds the discrepency found by rpm and a Verification of v7 rpm failed error to the info log file
25. his error no longer occurs and the v7 certify command now terminates with exit status O in this case BZ 690215 Since the floppy test is no longer required for certification this update removes it from the v7 package 4 v7 release 1 3 BZ 690799 FV data images have been updated to version 1 3 As well the v7 certify mode auto command is now used on a guest in order to complete the fv_core fv_memory fv_network and fv_storage testing BZ 693429 Previously clocktest only worked up to 1024p With this update the underlying source code has been adapted to use dynamic cpuset allocation and clocktest now works as expected BZ 701621 On Red Hat Enterprise Linux 6 a change of a kernel message caused the suspend test to fail when resuming from a hibernation This update adapts the suspend test to recognize this new message so that it is able to pass on both Red Hat Enterprise Linux 5 and 6 Enhancements BZ 516910 A new test wlan has been added This test collects and reports information related to wireless interfaces BZ 593982 When running the v7 run or v7 certify command a warning message is now displayed in case the results xml file is suspected to be too large to submit BZ 626970 Upon a system reboot the reboot test is now able to verify that the vmcore dump file has been created and can be analyzed by the crash utility Note that in order to do so the corresponding kernel debuginfo package and the crash
26. ing the testing BZ 684075 On the first run the v7 utility now prompts the user to verify the vendor make and model and allows them to edit the default values These values are stored in the results xml file BZ 690676 In addition to an RPM package the v7 test suite has been adapted to also generate a gzip compressed results xm1 file BZ 701491 The kdump test has been adjusted to use a more sophisticated dependency checking algorithm As a consequence this test no longer requires the kernel debug package and instead in depends on the crash package BZ 702695 Version 1 4 of the v7 test suite is provided in two separate RPM packages v7 and v7 server The v7 server is only required on the v7 test server side BZ 704031 The storage test has been adapted to display additional logical volume manager LVM debugging information during testing BZ 705844 With this update an attempt to run an interactive test with the mode auto command line 11 v7 Hardware Certification Test Suite 1 Technical Notes option fails instead of displaying AUTO or logging PASS as the test result BZ 710173 This update adapts the v7 test suite to proceed with the test without prompting the user for confirmation in the verification step if no error is detected BZ 718290 This update splits the reboot test into two separate tests kdump and reboot The kdump test is based on the original reboot test but requires the kdump crash recove
27. is document before using this release of v7 Bug Fixes BZ 487184 The validation for the info test module passes now wireless modules from Red Hat Supplemental packages BZ 512153 The Hardware Certification Test for this module works correctly BZ 555909 A kdump test was added for Red Hat Enterprise Linux 6 BZ 568467 v7 now contains a CPU clock test BZ 568518 A BMC fencing test has been added BZ 568526 A reboot test has been added BZ 570714 18 5 v7 release 1 2 v7 hardware certification test works as expected even in the dm_log_clustered module BZ 574639 The INFO test now shows the DUP usages and highlights them in the output BZ 581463 The memory test now works as expected even on larger scale systems BZ 582090 The rhpl call has been disabled for v7 BZ 584121 The Red Hat Enterprise Linux 6 network test mount command works without flaws in NFS testing BZ 585890 The counting test in v7 now works as expected BZ 586568 When running the v7 submit command the test results are now generated correctly BZ 586568 Running the v7 submit command no longer fails BZ 586941 system config display is no longer required BZ 587434 All test results are now included when running the v7 submit command BZ 588702 The CPU scaling test now properly checks the content of the sys devices system cpu cpu lt n gt cpufreq scaling_available_frequencies file BZ 591357 On Re
28. ith a traceback error IoError Errno 2 No such file or directory var log Xorg 2 10g v7 now checks for the existence of var 1o0g Xorg 2 log before attempting to copy it avoiding the traceback error BZ 570637 When testing a fully virtualized Red Hat Enterprise Linux 5 x instance running under KVM the fv_ tests require the kvm tools package group and the kvm qemu img package When testing a fully virtualized Red Hat Enterprise Linux 6 instance running under KVM the fv_ tests require the qemu kvm tools package group With this update these packages are now requested at runtime if they are not present allowing the fv_ tests to run as expected BZ 570917 When run on KVM based guest instances the fv_ tests failed to run when SELinux was in the required enforcing mode If the guest instance was switched to permissive mode errors regarding invalid accesss from qemu to the guest images were reported This update corrects the underlying image installation location error and KVM based guest instances can now run the fv_ tests while running in SELinux s enforcing mode as expected BZ 571599 An error in the way v7 verified its own install state caused it to fail with traceback errors when running the info test v7 now checks the output of rpmVerify correctly and assuming v7 passes the rpm verification the info test now runs without traceback errors as expected BZ 571610 Previously v7 only used kudzu for device detecti
29. lts directly to the hwcert catalog site Users can now choose to open a new certificate modify the existing certificate or keep the test result not submitted when executing the v7 plan or v7 submit commands BZ 782195 This update enables the v7 test suite to verify only the rteval hwlatdetect and info tests on the realtime kernel with the v7 verify command BZ 782197 This update adds D Bus UDisks support for the storage test to the v7 test suite BZ 782229 3 v7 release 1 4 The v7 certify command now supports component mode To certify all tests with the same device name use the device option and for all tests with the unique device identifier use the udi option BZ 784419 This update adds support for greylist symbols to the info test in Red Hat Driver Update Program DUP packages BZ 799118 With this update the v7 clean command preserves System Under Test SUT hardware information when results are removed To remove all results including SUT hardware information use the v7 clean all command instead BZ 805757 With this update the sos package is a dependency of the v7 package BZ 810809 This update allows v7 commands to return a non zero value if the command execution fails BZ 818331 With this update the functionality to schedule the reboot test automatically when executing v7 plan has been replaced by the kdump test To add the reboot test manually use the add option BZ 822690 With this upd
30. mines the suitability of a system for use in a Real Time Linux environment such as Red Hat Enterprise MRG The test measures event latency when a system is under load and reports the latencies encountered during the test The rteval test can only be added to a plan when v7 is invoked on a system running the MRG RT kernel Also for such a system to pass the rteval latency standard deviation must be no more than 3 us and the maximum measured latency must be no more than 100 us BZ 555895 30 6 v7 release 1 1 Many v7 tests include sub tests The audio test for example includes a record and playback test and the network test includes nfs xfer ping ifup and ifdown tests The test results however were written to a single output section in var hts results xm1 With this update test code can now delimit test output sub sections using lt output gt tags K This structured output is still flattened to a single output section when running v7 submit to package test results as RPM files for submission to the Red Hat Hardware Catalog BZ 536929 Previously v7 relied primarily on the Hardware Abstraction Layer HAL software to detect devices for testing This update improves device detection by adding calls to proc the process file system and udev the Linux device manager BZ 555898 Previously changing the specific tests run on optical media eg a CD or DVD disk required manual editing of the test except for a pro
31. mpt asking the user to pick between the DVD and DVD formats for DVD tests With this update v7 now allows users to specify the test media For CDs the test continues to default to the highest capability media the drive supports but presents a prompt asking what media is to be tested and notes the specific disk required based on the information provided For example when run on a system with a CD drive that supports CD RW CD R and CD ROM media the CD test now prompts as follows Your device dev deviceid supports cd rw cd r cd rom Would you like to test cd rw media y n When run on a system with a DVD drive that supports DVD RW DVD RW DVD R DVD R and DVD ROM the DVD test will prompt as follows Your CD DVD device dev deviceid supports dvd rw dvd rw dvd r dvd r dvd Would you like to test dvd rw media y n BZ 555903 Previously running v7 run test suspend invoked four sub tests os suspend os hibernate key suspend and key hibernate with no option but to run all four Not all systems have dedicated keys for suspend hibernate or either however On systems with no dedicated hibernate button for example running v7 run test suspend to test if the system did suspend and resume properly meant allowing the key hibernate test to fail and then manually reviewing the test results to verify the other three tests were passed This update adds an opt out prompt allowing the user to not run the function key tes
32. number To prevent this error this update adapts the corresponding Makefile to update the version information in v7 8 each time the make install command is issued BZ 607976 Prior to this update the output of the info test could contain error messages produced by the sosreport utility With this update the info test has been adapted to filter these messages from its output BZ 617646 Previously the output of the v7 print report full command did not include guest test logs for fv_core fv_memory fv_network and fv_storage tests This update corrects this error and running the v7 print report full command now displays guest test logs as expected 13 v7 Hardware Certification Test Suite 1 Technical Notes BZ 618358 On a server side installation of the v7 test suite an attempt to run a fencing test without the fence agents package installed failed with an error To prevent this error this update adds the fence agents package as a dependency for a server side installation of the v7 test suite BZ 623787 Prior to this update the core test called the stress command with a fixed value of the vm bytes command line option Consequent to this the execution of the stress command during the core test on a system with not enough memory may have caused the system to stop responding This update ensures that the argument passed to the stress command is scalable to fit the available memory size so that the core test now works as ex
33. on on Red Hat Enterprise Linux 4 x In some circumstances consequently when the following commands were run v7 erroneously reported aNo such test network error With this update v7 now uses both kudzu and RHN s hardware probing library and no longer presents the error BZ 572265 If v7 plan was run a USB based electronic key fob was then installed on a system and v7 plan was then run again a storage test entry should have been added to the plan and the extant USB and ExpressCard tests left as is Previously however the USB and ExpressCard tests inadvertantly associated an arbitrary device with the test and as a consequently adding a key fob and re running v7 plan resulted in the existing USB and ExpressCard tests being replaced by new entries pointing to the arbitrary devices This update corrects the behavior of the USB and ExpressCard tests and adding a key fob and re running v7 plan now acts as 27 v7 Hardware Certification Test Suite 1 Technical Notes expected adding a storage test and leaving the extant USB and ExpressCard tests as is BZ 572346 When the fvtest cannot determine the proper bridge device it returns a could not determine xen bridge device assuming xenbr0 warning and sets a default bridge in the fv config file A copy and paste error in the fvtest script caused this default bridge to be set to xenbrxenbro This is incorrect and for this update the error has been corrected The default bridge device set by t
34. oncerning the popen2 and exceptions modules presented As of this update the v7 build process is Red Hat Enterprise Linux version specific If built against Red Hat Enterprise Linux 4 x which includes Python 2 3 or 2 4 or Red Hat Enterprise Linux 5 x which includes Python 2 5 v7 will use the popen2 module If built against a Red Hat Enterprise Linux version later than 5 x v7 will use the subprocess module which replaced popen2 as of Python 2 6 The exceptions module is available in the global namespace so for this update specific references to the exceptions module were removed Both changes ensure deprecation messages do not present if v7 is used with Python 2 6 BZ 489578 On multi processor systems with solid state drives SSDs the cpuscaling test failed on Core 0 if test info was run before test cpuscaling With this update v7 checks the load average making sure it is lt 1 and performs a sync before beginning the cpuscaling test ensuring the test works as expected on all systems including those with SSDs 6 v7 release 1 1 BZ 517311 Running the following commands v7 clean v7 plan v7 submit caused a traceback error if no tests were run before the submit was executed v7 now checks the number of test runs is greater than zero before running v7 submit BZ 526057 An error in the ExpressCard test caused it to erroneously present an Error Did not confirm the device Please re try When ExpressCard devic
35. pected BZ 627043 The previous version of the network test incorrectly assumed that the sitO interface is present and may have failed with the following error Error could not restart interface sito Since this interface is not necessarily required for testing this update removes it from the list of tested interfaces BZ 635973 On systems with a large amount of memory the creation of a vmcore dump file during the execution of the reboot test could take several minutes to finish With this update the reboot test has been adapted to generate a compressed vmcore file so that the reboot test now finishes in a reasonable time even on systems with large memory BZ 637261 When a user attempted to run the info test on a system without SELinux running in enforcing mode the test failed With this update v7 has been adapted to inform users that SELinux must be running in enforcing mode and prompt them to choose whether to continue or not BZ 637687 Due to the standard output stream not being flushed properly the output of the network test contained mixed up information about a network interface controller NIC With this update this error no longer occurs and the information about NICs are now displayed correctly BZ 640138 During the execution of the cpuscaling test when a CPU load test failed subsequent sub tests could cause the test to terminate unexpectedly with the following error TypeError float argument required
36. ry service to be operational in order to pass While the new reboot test is scheduled only once per system the kdump test is scheduled twice once for a local image and again for dumping an image over NES BZ 725441 When a v7 test server is configured the v7 save command now stores a copy of the test results on it The web user interface of the v7 test server now also allows users to review the stored results of multiple systems under test SUTS organized by the vendor make model host or date The general results are typically accessible by using the URL in the following form http v7_server_hostname v7 Detailed results for each SUT can be downloaded by clicking the links on the above page BZ 730932 The v7 test verification now fails when the test server does not meet the minimum server version of the system under test SUT BZ 731322 When performing network tests the v7 server now stores the HTTP transfer file in a new directory var www v7 transfer instead of var v7 store K This enhancement changes the v7 configuration file Consequent to this users are advised to remove the etc v7 xm1 file on both the server and systems under test SUTs before running the v7 tests BZ 732113 This update introduces a completely rewritten cpuscaling test which resolves several legacy issues 4 v7 release 1 3 This section contains important information pertaining to release 1 3 of the v7 Hardware Test Suite
37. s flags Consequently if v7 plan v7 print Were run on an AMD based system capable of virtualization no fv_ tests were included in the plan With this update v7 now also checks proc cpuinfo for the AMD specific svm Secure Virtual Machine flag and running v7 plan on such systems produces a plan which includes virtualization tests as expected BZ 557365 A regular expression regex in hardwaretest py did not allow for spaces and numbers Consequently running v7 plan on some versions of Red Hat Enterprise Linux failed with a traceback error producing no plan for the v7 print to print The particular regex now allows for spaces and numbers and running v7 plan v7 print now works as expected on all supported Red Hat Enterprise Linux releases BZ 557674 In some circumstances on both Red Hat Enterprise Linux 4 8 and 5 4 running v7 plan resulted in v7 failing with the following error 6 v7 release 1 1 sh udevadm command not found Could not open sys class dmi id sys_vendor are you running the right kernel v7 now handles the udevadm command not found error internally and v7 no longer fails on systems where udevadm is not available BZ 558578 On 32 bit x86 systems with more than 1 GB of RAMrunning run test memory under Red Hat Enterprise Linux 4 x resulted in a traceback error AttributeError int object has no attribute pipe This update adds an extended method set to the v7 Command class that
38. stalled package list to yum Once yum finishes v7 checks the test list again If the user does not agree v7 returns the following error Warning some tests may fail due to missing rpms This check only runs when a new plan is created It does not run if a plan is changed by the addition and detection of new hardware or by direct user edits BZ 523824 Previously the fv_ tests which launched fully virtualized guest instances of Red Hat Enterprise Linux and then completed the applicable testing from within said guest only supported Xen based guest instances With this update support for KVM based fully virtualized guests was added The fv_ tests now work with both Xen and KVM images BZ 525736 A new switch model was added that when included in a v7 command line prompts for user input on Vendor Make and Model The prompts show the values currently in results xml in parentheses and if no text is entered the extant information is retained The v7 man page has also been updated to document this new switch v7 s default behavior is unchanged It still tries to determine Vendor Make and Model automatically and if this fails it still prompts the user for this information Adding the model to a command line shows the user prompts for this information regardless of v7 s success or failure in determining this information on its own BZ 554915 A new test rteval was added The rteval test deter
39. t when running the suspend tests 31 v7 Hardware Certification Test Suite 1 Technical Notes BZ 555842 Previously v7 depended on the Requires section of its spec file to set package requirements With this update v7 takes advantage of its new ability to request and install required packages at runtime Several packages required only for certain tests eg the Optical Disk tests are now not required by the v7 installation rpm but will be called for if and when the appropriate test is run Anyone seeking to certify hardware for use with Red Hat Enterprise Linux should install this updated package which fixes these bugs and adds these enhancements 32 A Revision History Revision 5 0 400 2013 10 31 Rebuild with publican 4 0 0 Revision 5 0 Added documentation for v7 1 6 Friday Feb 01 2013 Revision 4 0 Added documentation for v7 1 5 Tuesday Jun 05 2012 Revision 3 0 Added documentation for v7 1 4 Monday Nov 07 2011 Revision 2 0 Added documentation for v7 1 3 Fri May 06 2011 Revision 1 0 Mon Oct 04 2010 Revision 0 0 Wed Sep 29 2010 Initial creation of book by publican A Revision History R diger Landmann Florian Nadge Jaromir Hradilek Jaromir Hradilek Jaromir Hradilek Douglas Silas Florian Nadge 33
40. tect InfiniBand IB via Peripheral Component Interconnect PCI class or subclass and log v7 Hardware Certification Test Suite 1 Technical Notes info To start the infiniband test use the ibstat or ibstatus commands BZ 532557 This update adds a new functionality to the v7 test suite to warn users if the test suite is not running on a GA kernel BZ 608568 This update adds a new functionality to the v7 test suite to detect all X Org drivers and to warn users in case non Red Hat drivers are found BZ 611409 This update adds a new functionality to the v7 video test to collect information about the currently used video controller To start this functionality use the xvinfo xdriinfo or glxinfo commands BZ 702168 With this update the fence agents package is no longer required as a dependency when installing the v7 server package BZ 746029 With this update the info test reports reboot and fv guest time limit changes in the etc v7 xm1 file and informs the user that the configuration file has been changed BZ 748753 With this update the Unicode decode error messages Warning Unicode decode error in var log messages are no longer displayed unless the debug option is set BZ 750721 This update converts the misleading message Warning could not log sound card information to the correct message Error could not log sound card information BZ 782189 This update allows the v7 test suite to upload resu
41. tes BZ 624141 The cpuscaling test now lists available frequencies from lowest to highest BZ 625184 A threaded_memtest c uses the SC NPROCESSORS ONLN variable to determine the number of processors BZ 626020 The storage test no longer returns an error when calculating the device size BZ 626524 The reboot test marks the start time of a reboot after the user has responded to the prompt v7 release 1 1 This section contains important information pertaining to release 1 1 of the v7 Hardware Test Suite including known problems resources and other issues Read this document before using this release of v7 Bu 22 g Fixes BZ 484512 As part of the clock test multi processor systems are checked for jitter variations in the periodic signal Specifically this test queries the current time across several processor cores and reports an error if the difference between the highest and lowest returned values is greater than 0 2 seconds If there was high CPU load or if the number of logical CPUs was high enough e g was greater than 16 in some circumstances the jitter test failed For this update the clock test s nice level was changed from the default 0 to 20 This gives the test the highest possible priority with the Linux kernel scheduler allowing the test to run successfully on systems with high CPU loads or high core counts BZ 484657 If v7 was used on a system with Python 2 6 installed deprecation messages c
42. treated as test passes by v7 This update corrects this v7 now checks the guest s test run summary rather than the return value and correctly reports network failures on the guest Previously if the argument provided with the test switch was not present in the v7 test library eg the name of the test to run was incorrect the entire test still ran v7 now checks each provided test name before running If any requested tests are not present v7 now exits with a No such test error 23 v7 Hardware Certification Test Suite 1 Technical Notes BZ 548517 An unnecessary call to runForVirtualization caused the v7 plan test cpuscaling disable to fail with the following traceback error AttributeError CPUScalingTest instance has no attribute runForVirtualization The call is unnecessary since the test s own plan methods determine whether tests should be run in the guest environement or not This update removes the call to runForVirtualization and the traceback error no longer presents BZ 555045 If test results contained bad or invalid device data running v7 submit with release 23 of v7 1 1 caused a traceback error This update includes changes that prevent v7 from creating invalid device data and adds better error handling to let users know if test results contain bad device data BZ 557355 When testing for virtualization capability v7 checked proc cpuinfo for the vmx Virtual Machine eXtensions and smx Safer Mode eXtension
43. udev device manager instead of the deprecated HAL for hardware detection in test planning and execution BZ 843610 With this update the PCCARD test uses the udev device manager instead of the deprecated HAL for hardware detection in test planning and execution v7 Hardware Certification Test Suite 1 Technical Notes BZ 843611 With this update the USB test uses the udev device manager instead of the deprecated HAL for hardware detection in test planning and execution BZ 843616 With this update the wlan test uses the udev device manager instead of the deprecated HAL for hardware detection in test planning and execution BZ 866917 With this update the VIDEO test uses the udev device manager instead of the deprecated HAL for hardware detection in test planning and execution BZ 871515 With this update the profiler test for virtualization no longer depends on the deprecated HAL BZ 880079 With this update the v7 AUDIO test prints the codec information from the proc asound card pcm info file of the sound card in use so that the user can view the codec of audio devices during the AUDIO test more conveniently BZ 888688 With this update the INFINIBAND test displays extra udev information in test output and the hardware log including all available network interface information Users of v7 are advised to upgrade to these updated packages which fix these bugs and add these enhancements 2 v7 release 1 5 This s
44. utility must be installed BZ 659789 This update provides a number of usability improvements and introduces a set of commands to give users better control over the tests Users are now allowed to use tags in order to run selected test sets BZ 668041 Virtualization tests are now capable of logging image metadata This makes it easier for users to determine what image file was used for the testing BZ 676239 The info test has been adapted to mark devices that are considered a technology preview as such in its output BZ 677752 The network test has been adapted to produce less verbose output for ICMP tests and allow only 5 retries 17 v7 Hardware Certification Test Suite 1 Technical Notes BZ 680225 To test file transfers over TCP previous versions of the network test used the NFS protocol This update enables the use of HTTP for file transfer tests BZ 690218 When issued with the debug command line option v7 no longer suppresses exceptions raised in tests This allows users to review tracebacks for debugging purposes BZ 690797 Users are now allowed to configure the following options The FV test time limit 60 minutes by default The reboot time limit 10 minutes by default The results xm1 warning size limit 16MB by default 5 v7 release 1 2 This section contains important information pertaining to release 1 2 of the v7 Hardware Test Suite including known problems resources and other issues Read th
45. was therefore empty This update adapts the v7 utility to display an error message in such a Situation informing the user that no tests have been executed yet and that there are no test results to be saved BZ 733618 In v7 1 3 it was possible for the kdump NFS test to pass without having the remote server configured This error no longer occurs and when no remote server is set the kdump test now fails as expected BZ 734476 When using version 1 3 of the v7 test suite the presence of a Technology Preview module on the tested system caused the info test to fail Since not every Technology Preview module is supposed to fail the test this update introduces a whitelist for approved Technology Preview modules such as fscache As a result the modules that are on this whitelist no longer cause the info test to fail BZ 734985 When using v7 1 3 an attempt to run the info test on a system with third party modules sometimes failed with a traceback With this update a patch has been applied to resolve this issue so that no traceback is displayed in this scenario BZ 736638 In v7 1 3 the storage test failed to run on a 4K sector device This happened because the test used a hard coded minimum block size of 1024 bytes With this update the storage test has been adapted to set the minimum block size dynamically based on the value of sys block device queue hw_sector_size BZ 736666 In version 1 3 of the v7 test suite the storage test
46. x Hardware Certification hwcert Its built in suite of tests verify the compatibility of hardware devices for running with Red Hat Enterprise Linux Each v7 test run builds a results database for submission to Red Hat s hardware catalog as an RPM package v7 is the update to and replacement for hts 5 3 The v7 Technical Notes contain important information available at the time of release Known problems resources and other issues are discussed here Read this document before you use v7 1 v7 release 1 6 This section contains important information pertaining to release 1 6 of the v7 Hardware Test Suite including known problems resources and other issues Read this document before using this release of v7 Bug Fixes BZ 751069 Prior to this update the kudzu tool was removed from Red Hat Enterprise Linux 6 As a consequence the v7 tests returned the error message sh kudzu command not found This update removes all kudzu options in the v7 code and the v7 test suite no longer issues these messages BZ 815582 The device load sequence sda sdb etc in the kdump kernel differs from the first kernel Prior to this update the v7 kdump test used the device name sda sdb instead of the UUID or LABEL in the dump target and kdump failed to dump the vmcore to the correct device As a consequence the kdump test failed This update uses the UUID or LABEL in the dump target which allows kdump to dump the vmcore to correct device BZ 8
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