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Bug#1114898: NFSv4.2 reports "Operation Not Supported" on getxattr calls

Started byBrad Barnett <debian-bugs5@L8R.net>
First post2025-09-11 13:10 +0200
Last post2025-09-13 12:10 +0200
Articles 2 — 2 participants

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  Bug#1114898: NFSv4.2 reports "Operation Not Supported" on getxattr calls Brad Barnett <debian-bugs5@L8R.net> - 2025-09-11 13:10 +0200
    Bug#1114898: Acknowledgement (NFSv4.2 reports "Operation Not Supported" on getxattr calls) Brad Barnett <bugs5@L8R.net> - 2025-09-13 12:10 +0200

#1260954 — Bug#1114898: NFSv4.2 reports "Operation Not Supported" on getxattr calls

FromBrad Barnett <debian-bugs5@L8R.net>
Date2025-09-11 13:10 +0200
SubjectBug#1114898: NFSv4.2 reports "Operation Not Supported" on getxattr calls
Message-ID<LtNlD-evqW-3@gated-at.bofh.it>

Package: linux-image-amd64
Version: 6.12.43-1

NFSv4.2 reports "Operation Not Supported" on getxattr calls.

The following is with the same NFS backend, and same mount options.  The
NFS server reports name: "Linux NFSv4.2 [an identifier]" under 
/proc/fs/nfsd/clients/*/info for both clients.

Bookworm:

# touch testfile
# setfattr -h -n user.test -v yes testfile
# getfattr -h -n user.test testfile
# file: testfile
user.test="yes"

Trixie:

# setfattr -h -n user.test -v yes testfile
setfattr: testfile: Operation not supported

# getfattr -h -n user.test testfile
testfile: user.test: Operation not supported

There seems to be a regression in set/getxattr handling in 6.12 and other
branches.  This may be helpful:

https://marc.info/?l=linux-nfs&m=175643910429853&w=2

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#1261183 — Bug#1114898: Acknowledgement (NFSv4.2 reports "Operation Not Supported" on getxattr calls)

FromBrad Barnett <bugs5@L8R.net>
Date2025-09-13 12:10 +0200
SubjectBug#1114898: Acknowledgement (NFSv4.2 reports "Operation Not Supported" on getxattr calls)
Message-ID<LuvmF-eYZj-5@gated-at.bofh.it>
In reply to#1260954
Scott Haiden noticed that fixes for this regression have been pulled into mainline:

https://lore.kernel.org/linux-nfs/175753335865.1546567.12052545947146428602.pr-tracker-bot@kernel.org/T/#t

Commit:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7aac71907bdea16e2754a782b9d9155449a9d49d)

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