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Bug#962254: NFS(v4) broken at 4.19.118-2

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Control: tags -1 + moreinfo unreproducible

Control: notfound -1 4.19.118+2
Control: found -1 4.19.118-2

Hi Elliot,

On Thu, Jun 04, 2020 at 10:16:07PM -0700, Elliott Mitchell wrote:
> Package: src:linux
> Version: 4.19.118+2
> Severity: important
> 
> Somewhere between linux-image-4.19.0-8-amd64/4.19.98+1+deb10u1 and
> linux-image-4.19.0-9-amd64/4.19.118+2 NFS, in particular v4 got broken.
> Mounting an appropriate filesystem became unreliable, and once mounted
> behavior is unpredictable.
> 
> In particular in the problematic case `umask 022 ; touch foo ; ls -l foo`
> yields a -rw-rw-rw- file.
> 
> This occurs if *both* the server *and* client are on 4.19.118+2.  I have
> confirmed this does NOT occur if the server is on a 4.9 kernel.  I have
> also confirmed this does NOT occur if the client is on a 4.9 or
> 4.19.98+1+deb10u1 kernel.

I cannot reproducde the described behaviour. Can you give more details
on your setup?

How do you export the filesystem?
What is the underlying filesystem exported?
How and whith which options do clients mount the NFS share?

Regards,
Salvatore

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Bug#962254: NFS(v4) broken at 4.19.118-2 Elliott Mitchell <ehem+debian@m5p.com> - 2020-06-05 07:50 +0200
  Processed: Re: Bug#962254: NFS(v4) broken at 4.19.118-2 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2020-06-05 08:50 +0200
  Bug#962254: NFS(v4) broken at 4.19.118-2 Salvatore Bonaccorso <carnil@debian.org> - 2020-06-05 08:50 +0200
    Bug#962254: NFS(v4) broken at 4.19.118-2 Elliott Mitchell <ehem+debian@m5p.com> - 2020-06-05 20:20 +0200
      Bug#962254: NFS(v4) broken at 4.19.118-2 Salvatore Bonaccorso <carnil@debian.org> - 2020-06-05 20:40 +0200
        Bug#962254: NFS(v4) broken at 4.19.118-2 Elliott Mitchell <ehem+debian@m5p.com> - 2020-06-06 00:40 +0200
        Bug#934160: Bug#962254: NFS(v4) broken at 4.19.118-2 Elliott Mitchell <ehem+debian@m5p.com> - 2020-06-09 04:00 +0200
  Processed: Re: Bug#962254: NFS(v4) broken at 4.19.118-2 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2020-06-09 04:00 +0200
  Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported ZFS (with acltype=off) (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) Salvatore Bonaccorso <carnil@debian.org> - 2020-06-13 15:00 +0200
  Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported ZFS (with acltype=off) (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) "J. Bruce Fields" <bfields@redhat.com> - 2020-06-15 17:10 +0200
    Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported Filesystem with noacl (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) Salvatore Bonaccorso <carnil@debian.org> - 2020-06-15 21:00 +0200
  Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported Filesystem with noacl (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) "J. Bruce Fields" <bfields@redhat.com> - 2020-06-16 04:50 +0200
    Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported Filesystem with noacl (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) Salvatore Bonaccorso <carnil@debian.org> - 2020-06-16 07:40 +0200
    Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported Filesystem with noacl (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) Salvatore Bonaccorso <carnil@debian.org> - 2020-06-16 18:30 +0200
      Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported Filesystem with noacl (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) "J. Bruce Fields" <bfields@redhat.com> - 2020-06-17 03:10 +0200
        Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported Filesystem with noacl Salvatore Bonaccorso <carnil@debian.org> - 2020-06-17 07:10 +0200
  Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported Filesystem with noacl (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) Salvatore Bonaccorso <carnil@debian.org> - 2020-06-16 07:40 +0200
  Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported Filesystem with noacl (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) "J. Bruce Fields" <bfields@redhat.com> - 2020-06-17 17:40 +0200
    Bug#962254: Umask ignored when mounting NFSv4.2 share of an exported Filesystem with noacl (was: Re: Bug#962254: NFS(v4) broken at 4.19.118-2) Andreas Gruenbacher <agruenba@redhat.com> - 2020-06-17 19:00 +0200

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