kbuild: kselftest error

DISCUSSION Drew Fustini 3 participants 3 messages Aug 30, 2014 1 message not in the archive ABI/API

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Drew Fustini

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2014-08-30 09:18 UTC #0 lore raw

Hi - I noticed the kselftest target in the kernel Makefile and decided to try it out of curiosity:

afustini at lappy486:~/dev/linux/lappy486/git/kernels/mainline$ sudo make kselftest

Has anyone run kselftest successfully?

I ran into an error that I'm trying to figure out:

== Testing sysctl behavior against /proc/sys/vm/swappiness == Writing test file ... ok
Checking sysctl is not set to test value ... ok Writing sysctl from shell ... ok
Resetting sysctl to original value ... ok
Writing entire sysctl in single write ... ok Writing middle of sysctl after synchronized seek ... FAIL Writing beyond end of sysctl ... FAIL
Writing sysctl with multiple long writes ... ok make[2]: *** [test_num] Error 1
./fw_filesystem.sh: timeout works ./fw_filesystem.sh: filesystem loading works
fw_filesystem: ok
./fw_userhelper.sh: timeout works ./fw_userhelper.sh: firmware interface never appeared
fw_userhelper: [FAIL]
make[2]: *** [fw_userhelper] Error 1
make[1]: *** [run_tests] Error 2
make: *** [kselftest] Error 2

I'm running kernel that I compiled from linus's tree 2 days ago.

After encountering the error, I turned on all the testing config options I could find under the kernel hacking category. However, I encountered the same kselftest error with the newly built kernel:
Linux lappy486 3.17.0-lappy486-00040-gff0c57a-dirty #5 SMP PREEMPT Thu

Aug 28 05:08:04 CDT 2014 x86_64 x86_64 x86_64 GNU/Linux

Log files for reference:

make-kselftest-3.17.0-lappy486-00040-gff0c57a-dirty.log:
https://gist.github.com/pdp7/79d511ddf30fa8d0dfee

dmesg-3.17.0-lappy486-00040-gff0c57a-dirty.log:
https://gist.github.com/pdp7/ea3f86dd7dc994189c14

kernel-config-3.17.0-lappy486-00040-gff0c57a-dirty.log:
https://gist.github.com/pdp7/07315ac2aba2ab4c48da

lsmod-3.17.0-lappy486-00040-gff0c57a-dirty.log:
https://gist.github.com/pdp7/c6db7271345afc8a6868

lib-modules-3.17.0-lappy486-00040-gff0c57a-dirty.log:
https://gist.github.com/pdp7/a297c5aa246cd2b1ac9f

find-sys-fs-3.17.0-lappy486-00040-gff0c57a-dirty.log:
https://gist.github.com/pdp7/9238072c1630e0995749

git-status-3.17.0-lappy486-00040-gff0c57a-dirty.log:
https://gist.github.com/pdp7/c300ced047d1fa7fc696

git-diff-3.17.0-lappy486-00040-gff0c57a-dirty.log:
https://gist.github.com/pdp7/686ab164c55a25fcb5f8

thanks,
drew

Greg KH

2014-08-30 17:16 UTC #1 lore raw

Quoted 7 lines · Drew Fustini

Hi - I noticed the kselftest target in the kernel Makefile and decided to try it out of curiosity:
afustini at lappy486:~/dev/linux/lappy486/git/kernels/mainline$ sudo make kselftest
Has anyone run kselftest successfully?

Try emailing the linux-api at vger.kernel.org mailing list this information and the developers there should be able to help you out.

greg k-h

A message that is not in the archive (sent off-list or not yet received): [email protected]

Drew Fustini

2014-08-30 17:57 UTC #3 lore raw

kselftest errors: test_num & fw_userhelper

Hi - I posted this on kernelnewbies and gregkh recommended I post here. I would appreciate any suggestions.

I ran kselftest and it appears to have not finished due to errors from test_num & fw_userhelper:

afustini@lappy486:~/dev/linux/lappy486/git/kernels/mainline$ sudo make
kselftest
<snip>
== Testing sysctl behavior against /proc/sys/vm/swappiness ==
Writing test file ... ok
Checking sysctl is not set to test value ... ok
Writing sysctl from shell ... ok
Resetting sysctl to original value ... ok
Writing entire sysctl in single write ... ok
Writing middle of sysctl after synchronized seek ... FAIL
Writing beyond end of sysctl ... FAIL
Writing sysctl with multiple long writes ... ok
make[2]: *** [test_num] Error 1
./fw_filesystem.sh: timeout works
./fw_filesystem.sh: filesystem loading works
fw_filesystem: ok
./fw_userhelper.sh: timeout works
./fw_userhelper.sh: firmware interface never appeared
fw_userhelper: [FAIL]
make[2]: *** [fw_userhelper] Error 1
make[1]: *** [run_tests] Error 2
make: *** [kselftest] Error 2

I turned on all the testing kconfig options I could find under the kernel hacking category. I built the kernel from torvalds linux.git tree on Aug-28:
Linux lappy486 3.17.0-lappy486-00040-gff0c57a-dirty #5 SMP PREEMPT Thu Aug 28 05:08:04 CDT 2014 x86_64 x86_64 x86_64 GNU/Linux