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Bug 876007 - sys-kernel/gentoo-sources-5.15.69: nfs4 client bug (upstream regression)
Summary: sys-kernel/gentoo-sources-5.15.69: nfs4 client bug (upstream regression)
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers
URL: https://lore.kernel.org/stable/e845f6...
Whiteboard:
Keywords:
Depends on: 876229 876235
Blocks:
  Show dependency tree
 
Reported: 2022-10-08 00:15 UTC by Bill Prendergast
Modified: 2022-10-20 22:20 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---

Attachments
trimmed journalctl -k output (kern_2022-10-07T03_52.log,5.63 KB, text/x-log)
2022-10-08 00:17 UTC, Bill Prendergast 		Details
2nd trimmed journalctl -k output (kern_2022-10-07T04_52.log,5.38 KB, text/x-log)
2022-10-08 00:17 UTC, Bill Prendergast 		Details
View All Add an attachment (proposed patch, testcase, etc.)

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Description Bill Prendergast 2022-10-08 00:15:58 UTC 
As with the upstream bug report, launching Firefox with a nfs (v4) mounted /home results in a kernel bug.

As this is the current gentoo stable kernel for x86 (nfs server) and amd64 (nfs client), I feel that the upstream patch should be applied with the custom kernel patches or kernel-5.15.71 should be stabilised.

Upstream patch: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=27bf7a5d11987dae35651b478e6f7f2c276b9dc4

Reproducible: Always




NFS server: Linux cascade 5.15.69-gentoo #1 SMP Fri Oct 7 00:02:02 AEDT 2022 i686 Intel(R) Pentium(R) 4 CPU 3.00GHz GenuineIntel GNU/Linux

NFS client: Linux binah 5.15.69-gentoo #2 SMP Sat Oct 8 09:50:03 AEDT 2022 x86_64 AMD Ryzen 5 3600X 6-Core Processor AuthenticAMD GNU/Linux
Comment 1 Bill Prendergast 2022-10-08 00:17:25 UTC 
Created attachment 822775 [details]
trimmed journalctl -k output
Comment 2 Bill Prendergast 2022-10-08 00:17:56 UTC 
Created attachment 822778 [details]
2nd trimmed journalctl -k output
Comment 3 Bill Prendergast 2022-10-08 00:20:16 UTC 
I note that the patch mentioned above, applied as a user_patch, enables correct operation of the system.
Comment 4 Mike Pagano gentoo-dev 2022-10-20 15:53:04 UTC 
Reported to be fixed in 5.15.71+. Can you test with a kernel with the latest 5.15.X, please ?
Comment 5 Bill Prendergast 2022-10-20 18:05:50 UTC 
NFSv4 client host upgraded to 
sys-kernel/gentoo-sources-5.15.74

correct functionality confirmed with NFSv4 server host on
sys-kernel/gentoo-sources-5.15.69
 and confirmed after server upgrade to
sys-kernel/gentoo-sources-5.15.74

NFSv4 client: x86_64
NFSv4 server: i686

untested against x86_64 NFSv4 server (I have every expectation that it would work there, as that was the upstream reporters configuration).
Comment 6 Mike Pagano gentoo-dev 2022-10-20 22:20:51 UTC 
Thanks for letting us know.