[LU-1696] Test failure on test suite sanity, subtest test_49

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.3.0
• Affects Version/s: Lustre 2.3.0
• Severity: 3
• Assignee: Yang Sheng
• Reporter: Maloo

Description

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

This issue relates to the following test suite run: https://maloo.whamcloud.com/test_sets/79266140-dba0-11e1-81e3-52540035b04c.

The sub-test test_49 failed with the following error:

test failed to respond and timed out

Comments

[Peter Jones]

Landed for 2.3

[Yang Sheng]

Patch upload to:http://review.whamcloud.com/3544

[Yang Sheng]

Looks like 'dd' has hang and cause below part infinite loop:

        # loop until dd process exits
        while ps ax -opid | grep -q $dd_pid; do
                $LCTL set_param $osc1_mppc=$((RANDOM % 256 + 1))
                sleep $((RANDOM % 5 + 1))
        done

But i cannot found 'dd' process in stacktrace file. So i suspect it just because the script use 'grep -q $dd_pid' to match the pid, It maybe match partial number.

[Peter Jones]

yangsheng will look into this one