[LU-5375] Failure on test suite sanity test_151 test_156: roc_hit is not safe to use

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Minor
• Affects Version/s: Lustre 2.6.0, Lustre 2.8.0
• Environment: client and server: lustre-b2_6-rc2 ldiskfs ; client is SLES11 SP3
• Severity: 3
• Assignee: WC Triage
• Reporter: Maloo

Description

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

This issue relates to the following test suite run: https://testing.hpdd.intel.com/test_sets/97672104-0dca-11e4-b3f5-5254006e85c2.

The sub-test test_151 failed with the following error:

roc_hit is not safe to use

== sanity test 151: test cache on oss and controls ================================= 19:31:03 (1405477863)
CMD: onyx-40vm8 /usr/sbin/lctl get_param -n obdfilter.lustre-OST*.read_cache_enable 		osd-*.lustre-OST*.read_cache_enable 2>&1
CMD: onyx-40vm8 /usr/sbin/lctl get_param -n obdfilter.lustre-OST*.read_cache_enable 		osd-*.lustre-OST*.read_cache_enable 2>&1
CMD: onyx-40vm8 /usr/sbin/lctl set_param -n obdfilter.lustre-OST*.writethrough_cache_enable=1 		osd-*.lustre-OST*.writethrough_cache_enable=1 2>&1
CMD: onyx-40vm8 /usr/sbin/lctl get_param -n obdfilter.lustre-OST*.writethrough_cache_enable 		osd-*.lustre-OST*.writethrough_cache_enable 2>&1
4+0 records in
4+0 records out
16384 bytes (16 kB) copied, 0.00947514 s, 1.7 MB/s
CMD: onyx-40vm8 /usr/sbin/lctl get_param -n obdfilter.*OST*0000.stats 		osd-*.*OST*0000.stats 2>&1
CMD: onyx-40vm8 /usr/sbin/lctl get_param -n obdfilter.*OST*0000.stats 		osd-*.*OST*0000.stats 2>&1
BEFORE:11 AFTER:12
 sanity test_151: @@@@@@ FAIL: roc_hit is not safe to use 

Issue Links

• is related to: LU-11889 sanity test 156 fails on ZFS: roc_hit not safe to use
• is related to: LU-2902 sanity test_156: NOT IN CACHE: before: , after:
• is related to: LU-11347 Do not use pagecache for SSD I/O when read/write cache are disabled
• is related to: LU-2261 Add cache stats to zfs osd
• is related to: LU-11607 Reduce repeated function calls in Lustre test suites

Comments

[Andreas Dilger]

Recent failures were triggered by LU-11607 patch landing, but it turns out the problem was in the original LU-2261 patch. See LU-11889 for details.

[James A Simmons]

I'm seeing this bug again  in 2.12.50 testing.

[Andreas Dilger]

Recent failures reporting this ticket were caused by LU-11347 patch, this hasn't been hit in a long time.

[James A Simmons]

Can we close this?

[Saurabh Tandan (Inactive)]

Another instance found for interop - EL6.7 Server/2.5.5 Client, tag 2.7.90.
https://testing.hpdd.intel.com/test_sessions/f99a2d60-d567-11e5-bc47-5254006e85c2
Another instance found for interop - EL7 Server/2.5.5 Client, tag 2.7.90.
https://testing.hpdd.intel.com/test_sessions/93baffee-d2ae-11e5-8697-5254006e85c2

[Saurabh Tandan (Inactive)]

Another instance found for interop tag 2.7.66 - EL6.7 Server/2.5.5 Client, build# 3316
https://testing.hpdd.intel.com/test_sets/9ed7c1d8-cc9f-11e5-963e-5254006e85c2

Another instance found for interop tag 2.7.66 - EL7 Server/2.5.5 Client, build# 3316
https://testing.hpdd.intel.com/test_sets/5ea975e2-cc46-11e5-901d-5254006e85c2