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pmem / pmdk

Persistent Memory Development Kit
https://pmem.io
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Sporadic: pmem2_integration/TEST39 (medium/debug/pmemcheck/byte) #5634

Closed janekmi closed 1 year ago

janekmi commented 1 year ago

ISSUE: Sporadic: pmem2_integration -u 39 --force-enable pmemcheck

Environment Information

Please provide a reproduction of the bug:

$ ./RUNTESTS.py pmem2_integration -u 39 -g byte --force-enable pmemcheck -b debug
pmem2_integration/TEST39: SETUP (medium/debug/pmemcheck/byte)
Last 16 lines of /home/jmichal/work/pmdk/src/test/pmem2_integration/pmemcheck39.log below (whole file has 16 lines):
==1998050== pmemcheck-1.0, a simple persistent store checker
==1998050== Copyright (c) 2014-2020, Intel Corporation
==1998050== Using Valgrind-3.20.0 and LibVEX; rerun with -h for copyright info
==1998050== Command: /home/jmichal/work/pmdk/src/test/pmem2_integration/pmem2_integration test_map_from_existing /tmp/pmem2_integration_39/testfile
==1998050== Parent PID: 1998038
==1998050== 
==1998050== 
==1998050== Number of stores not made persistent: 1
==1998050== Stores not made persistent properly:
==1998050== [0]    at 0x401481A: _dl_fixup (dl-machine.h:239)
==1998050==    by 0x4001C3D: _dl_runtime_resolve_xsave (dl-trampoline.h:126)
==1998050==    by 0x402883: TEST_CASE_PROCESS (unittest.h:700)
==1998050==    by 0x405A7A: main (pmem2_integration.c:1030)
==1998050==     Address: 0x60f0c8       size: 8 state: DIRTY
==1998050== Total memory not made persistent: 8
==1998050== ERROR SUMMARY: 1 errors

How often bug is revealed: (always, often, rare): always

But it seems that not all users experience this issue: https://github.com/pmem/pmdk/pull/5605#pullrequestreview-1415567258

Actual behavior:

Valgrind/pmemcheck finds DIRTY bytes.

Expected behavior:

Pass.

Additional information about Priority and Help Requested:

Requested priority: (Showstopper, High, Medium, Low) Low

janekmi commented 1 year ago

It seems to not reproduce any more. 🎉