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Bug#1128861: [PATCH v2] lockd: fix TEST handling when not all permissions are available.

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From Uwe Kleine-König <ukleinek@debian.org>
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#1128861: [PATCH v2] lockd: fix TEST handling when not all permissions are available.
Date Wed, 01 Apr 2026 15:00:01 +0200
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X-Original-Cc NeilBrown <neil@brown.name>, Jeff Layton <jlayton@kernel.org>, Thorsten Leemhuis <regressions@leemhuis.info>, Tj <tj.iam.tj@proton.me>, linux-nfs@vger.kernel.org, Olga Kornievskaia <okorniev@redhat.com>, stable@vger.kernel.org
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Hello Chuck,

On Fri, Mar 27, 2026 at 09:56:38AM -0400, Chuck Lever wrote:
> I think the stable folks will insist on this fix going into
> upstream first. However, this version of the fix does not
> apply to nfsd-testing because that branch has the NLMv4
> xdrgen rewrite.

This is not the first time a bug is fixed by changes that are too
intrusive for backport. Usually the stable maintainers can be talked to
accept a small targeted fix even if it's not upstream. The discussion is
simplified by people claiming to have tested the fix and confirm it
helps.

Best regards
Uwe

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Thread

Bug#1128861: linux: when serving NFS, client attempts to lock served files fail with "No locks available" Philip Hands <phil@hands.com> - 2026-02-23 20:40 +0100
  Bug#1128861: Acknowledgement (linux: when serving NFS, client attempts to lock served files fail with "No locks available") Philip Hands <phil@hands.com> - 2026-02-23 23:30 +0100
  Bug#1128861: Acknowledgement (linux: when serving NFS, client attempts to lock served files fail with "No locks available") Philip Hands <phil@hands.com> - 2026-02-24 00:40 +0100
    Bug#1128861: Acknowledgement (linux: when serving NFS, client attempts to lock served files fail with "No locks available") Philip Hands <phil@hands.com> - 2026-02-24 01:30 +0100
  Bug#1128861: Revert 18744bc56b0ec appears to resolve it Tj <tj.iam.tj@proton.me> - 2026-02-24 01:50 +0100
  Bug#1128861: Regression: Missing check in nfsd_permission() causes -ENOLCK No locks available Tj <tj.iam.tj@proton.me> - 2026-02-24 03:20 +0100
    Bug#1128861: Regression: Missing check in nfsd_permission() causes -ENOLCK No locks available Tj <tj.iam.tj@proton.me> - 2026-02-24 14:00 +0100
    Bug#1128861: Regression: Missing check in nfsd_permission() causes -ENOLCK No locks available Thorsten Leemhuis <regressions@leemhuis.info> - 2026-02-27 11:10 +0100
      Bug#1128861: Regression: Missing check in nfsd_permission() causes -ENOLCK No locks available Salvatore Bonaccorso <carnil@debian.org> - 2026-03-04 11:40 +0100
    Bug#1128861: Regression: Missing check in nfsd_permission() causes -ENOLCK No locks available Sasha Levin <sashal@kernel.org> - 2026-03-04 16:50 +0100
  Processed: Re: Bug#1128861: Regression: Missing check in  nfsd_permission() causes -ENOLCK No locks available "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-03-04 11:40 +0100
  Bug#1128861: [PATCH] lockd: fix TEST handling when not all permissions are available. Ben Hutchings <ben@decadent.org.uk> - 2026-03-25 21:40 +0100
  Bug#1128861: [PATCH v2] lockd: fix TEST handling when not all permissions are available. Uwe Kleine-König <ukleinek@debian.org> - 2026-04-01 15:00 +0200

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