[LU-4819] tests: Lustre Sanity test_101b hangs for large OSTCOUNTs

• Status: Resolved
• Project: Lustre
• Fix Version/s: Lustre 2.6.0
• Type: Bug
• Priority: Minor
• Reporter: parinay v kondekar (Inactive)
• Assignee: Nathaniel Clark
• Resolution: Fixed
• Labels: patch
• Severity: 3

Description

The Wizard appears to hang during test 101b of the Lustre Sanity test. There have been three instances of this type of hang on this particular system.
Xyratex-bug-id: MRP-1362

# ps aux | grep [r]eads
root     121602 99.9  0.0   4040   440 ?        R    Sep12 939:47 reads -f /tmp/tmpNmB5Fv/f101b -l 18432 -o 18304 -s 104857600 -b 1048576 -a 128 -n 0

In all three instances the test logs appear to stop at test 101b:

name: test_101a
            status: PASS
            duration: 1
            return_code: 0
            error:
        -
            name: test_101b

Logs

== sanity test 101b: check stride-io mode read-ahead =================== 15:04:08 (1379023448)
error: set_param: /proc/{fs,sys}/{lnet,lustre}/obdfilter/*/read_cache_enable: Found no match
error: set_param: /proc/{fs,sys}/{lnet,lustre}/obdfilter/*/writethrough_cache_enable: Found no match

Comments

[parinay v kondekar (Inactive)]

http://review.whamcloud.com/#/c/9788/

[Jodi Levi (Inactive)]

Patch landed to Master.