[LU-3909] Interop 2.4.0<->2.5 failure on test suite sanity test_129: return code 28 received instead of expected 27

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.6.0, Lustre 2.5.1
• Affects Version/s: Lustre 2.5.0
• Labels: patch
• Environment: client: 2.4.0; server: lustre-master build #1652
• Severity: 3
• Assignee: Cliff White (Inactive)
• Reporter: Maloo

Description

This issue was created by maloo for sarah <[e-mail]>

This issue relates to the following test suite run: http://maloo.whamcloud.com/test_sets/9fb64ab0-15be-11e3-a83f-52540035b04c.

The sub-test test_129 failed with the following error:

return code 28 received instead of expected 27

Cannot find useful log

Issue Links

• is related to: LU-3908 Interop 2.4.0<->2.5 failure on test suite sanity test_129: return code 28 received instead of expected 27
• is related to: LU-3906 Failure on test suite parallel-scale test_compilebench: IOError, No space left on device

Comments

[Jian Yu]

That will cause this test to fail on newer kernels I think?

In set_dir_limits():

        local LDPROC=/proc/fs/ldiskfs
        #......

                do_facet $facet "test -e $LDPROC/$canondev/max_dir_size" ||
                                                LDPROC=/sys/fs/ldiskfs

If "/proc/fs/ldiskfs" does not exist, "/sys/fs/ldiskfs" will be used.

[Andreas Dilger]

I noticed that on my system the max_dir_size tunable is /sys/fs/ldiskfs/

{dev}/max_dir_size instead of /proc/fs/ldiskfs/{dev}

/max_dir_size. That will cause this test to fail on newer kernels I think?

[Peter Jones]

Landed for 2.6. Should land to b2_5 shortly

[Jian Yu]

Lustre client build: http://build.whamcloud.com/job/lustre-b2_5/5/
Lustre server build: http://build.whamcloud.com/job/lustre-b2_4/70/ (2.4.2)

The same failure occurred:
https://maloo.whamcloud.com/test_sets/a8e2dbf8-74f5-11e3-95ae-52540035b04c

Here is the back-ported patch for Lustre b2_5 branch: http://review.whamcloud.com/#/c/8727/

[Jian Yu]

Lustre client build: http://build.whamcloud.com/job/lustre-b2_4/70/ (2.4.2)
Lustre server build: http://build.whamcloud.com/job/lustre-b2_5/5/

The same failure occurred:
https://maloo.whamcloud.com/test_sets/5584c4fa-755c-11e3-95ae-52540035b04c

[Vladimir Saveliev]

3rd version is uploaded.
'lctl get_param' is used to get mds blocksize as Andreas suggested.

Please, take a look
http://review.whamcloud.com/8143

[Vladimir Saveliev]

new version is uploaded, please, take a look
http://review.whamcloud.com/8143

[Cliff White (Inactive)]

Patch needs to be rebased

[Vladimir Saveliev]

The problem seems to be caused by changes of max dir size limit logic. The below patch is to fix that. Please take a look.
http://review.whamcloud.com/8143

For correct work the following patch from https://jira.hpdd.intel.com/browse/LU-2479 is needed:
http://review.whamcloud.com/8137

[Sarah Liu]

Also hit this error between 2.4.0 server and 2.5 client:
https://maloo.whamcloud.com/test_sets/f5eae562-19c4-11e3-bb73-52540035b04c