Details
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Bug
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Resolution: Fixed
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Critical
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Lustre 2.13.0
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None
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3
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9223372036854775807
Description
This code was introduced by bz 18015 https://bugzilla.lustre.org/show_bug.cgi?id=18015
Newer kernels rename that symbol and it's not used anyway, but also at least in RHEL 7.[345] there's bug in this functionality htat leads to use after frees that are seen prominently in our nfs testing in maloo (in addition to my testrig). See LU-11063.
Example nfs failures:
https://testing.whamcloud.com/test_sessions/1cd5592c-8319-4aa7-aa2b-4549a83ce9cd
https://testing.whamcloud.com/test_sessions/9e6c8dec-d1dd-4ad4-b028-f98b5fdf63a9
Anyway after reviewing the original patch I think we just need to get rid of this flag altogether and if the rapid load/unload is still a problem, work it around in some better more robust way.
Attachments
Issue Links
- is related to
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LU-11063 RHEL7.[345] RCU breakage
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- Resolved
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Activity
Link | New: This issue is related to DDN-762 [ DDN-762 ] |
Link | New: This issue is duplicated by DDN-711 [ DDN-711 ] |
Summary | Original: Get rif of SLAB_DESTROY_BY_RCU | New: Get rid of SLAB_DESTROY_BY_RCU |
Fix Version/s | New: Lustre 2.12.1 [ 14406 ] |
Fix Version/s | New: Lustre 2.13.0 [ 14290 ] | |
Resolution | New: Fixed [ 1 ] | |
Status | Original: Open [ 1 ] | New: Resolved [ 5 ] |
Assignee | Original: WC Triage [ wc-triage ] | New: Oleg Drokin [ green ] |
Affects Version/s | New: Lustre 2.13.0 [ 14290 ] |