https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e0caaf75d443e02e55e146fd75fe2efc8aed5540
commit e0caaf75d443e02e55e146fd75fe2efc8aed5540
Author: Trond Myklebust <trond.mykleb...@hammerspace.com>
Date: Tue Feb 8 13:38:23 2022 -0500
NFS: LOOKUP_DIRECTORY is also ok with symlinks
Commit ac795161c936 (NFSv4: Handle case where the lookup of a directory
fails) [1], part of Linux since 5.17-rc2, introduced a regression, where
a symbolic link on an NFS mount to a directory on another NFS does not
resolve(?) the first time it is accessed:
Reported-by: Paul Menzel <pmen...@molgen.mpg.de>
Fixes: ac795161c936 ("NFSv4: Handle case where the lookup of a directory
fails")
Signed-off-by: Trond Myklebust <trond.mykleb...@hammerspace.com>
Tested-by: Donald Buczek <buc...@molgen.mpg.de>
Signed-off-by: Anna Schumaker <anna.schuma...@netapp.com>
~/git/linux$ git describe --contains e0caaf75d443
v5.17-rc5~13^2~1
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux-signed-hwe-5.4 (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux-signed-hwe-5.13 (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Impish)
Importance: Undecided
Status: New
** Also affects: linux-signed-hwe-5.4 (Ubuntu Impish)
Importance: Undecided
Status: New
** Also affects: linux-signed-hwe-5.13 (Ubuntu Impish)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Kinetic)
Importance: Undecided
Status: Confirmed
** Also affects: linux-signed-hwe-5.4 (Ubuntu Kinetic)
Importance: Undecided
Status: New
** Also affects: linux-signed-hwe-5.13 (Ubuntu Kinetic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-signed-hwe-5.4 (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-signed-hwe-5.13 (Ubuntu Focal)
Importance: Undecided
Status: New
** No longer affects: linux-signed-hwe-5.13 (Ubuntu)
** No longer affects: linux-signed-hwe-5.4 (Ubuntu)
** No longer affects: linux-signed-hwe-5.13 (Ubuntu Focal)
** No longer affects: linux-signed-hwe-5.13 (Ubuntu Impish)
** No longer affects: linux-signed-hwe-5.13 (Ubuntu Jammy)
** No longer affects: linux-signed-hwe-5.13 (Ubuntu Kinetic)
** No longer affects: linux-signed-hwe-5.4 (Ubuntu Focal)
** No longer affects: linux-signed-hwe-5.4 (Ubuntu Impish)
** No longer affects: linux-signed-hwe-5.4 (Ubuntu Jammy)
** No longer affects: linux-signed-hwe-5.4 (Ubuntu Kinetic)
** Changed in: linux (Ubuntu Kinetic)
Status: Confirmed => New
** Changed in: linux (Ubuntu Focal)
Status: New => Confirmed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-signed-hwe-5.13 in Ubuntu.
https://bugs.launchpad.net/bugs/1971482
Title:
Regression: nfs cannot access/list wildcard file unless its cached
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Focal:
Confirmed
Status in linux source package in Impish:
New
Status in linux source package in Jammy:
New
Status in linux source package in Kinetic:
Incomplete
Bug description:
Some of our build machines have recently started failing builds. It
was noted that all the machines that fail the build are running the
most recent kernel 5.4.0-109-generic #123~18.04.1-Ubuntu.
The following command was created to minimally reproduce the issue:
$ while true; do sudo /usr/local/scripts/drop_cache.sh; ls -la
/shared/projects/MityCAM-jenkins/intermediates/MityCAM-Yocto/latest/libdaq*.ipk
| tee -a /tmp/ls.log 2>&1; sleep 1;done
ls: cannot access
'/shared/projects/MityCAM-jenkins/intermediates/MityCAM-Yocto/latest/libdaq*.ipk':
No such file or directory
ls: cannot access
'/shared/projects/MityCAM-jenkins/intermediates/MityCAM-Yocto/latest/libdaq*.ipk':
No such file or directory
ls: cannot access
'/shared/projects/MityCAM-jenkins/intermediates/MityCAM-Yocto/latest/libdaq*.ipk':
No such file or directory
ls: cannot access
'/shared/projects/MityCAM-jenkins/intermediates/MityCAM-Yocto/latest/libdaq*.ipk':
No such file or directory
Note directly trying to list the file works every time, it seems the bug must
be related to the use of the wildcard.
$ while true; do sudo /usr/local/scripts/drop_cache.sh; ls -la
/shared/projects/MityCAM-jenkins/intermediates/MityCAM-Yocto/latest/libdaq_1.0.9323-r3_cortexa9hf-neon.ipk
| tee -a /tmp/ls.log 2>&1; sleep 1;done
-rw-r--r-- 1 jenkins engineer 202526 May 2 13:47
/shared/projects/MityCAM-jenkins/intermediates/MityCAM-Yocto/latest/libdaq_1.0.9323-r3_cortexa9hf-neon.ipk
-rw-r--r-- 1 jenkins engineer 202526 May 2 13:47
/shared/projects/MityCAM-jenkins/intermediates/MityCAM-Yocto/latest/libdaq_1.0.9323-r3_cortexa9hf-neon.ipk
-rw-r--r-- 1 jenkins engineer 202526 May 2 13:47
/shared/projects/MityCAM-jenkins/intermediates/MityCAM-Yocto/latest/libdaq_1.0.9323-r3_cortexa9hf-neon.ipk
The drop_cache was needed to force the error everytime, otherwise it
would fail only a few times then succeed a bunch in a row before
randomly failing again.
$ cat /usr/local/scripts/drop_cache.sh
#!/bin/bash
# Test script to drop filesystem cache
sync
# Clear pagecache, dentries, and inodes
echo 3 > /proc/sys/vm/drop_caches
Downgrading the kernel to 5.4.0-107-generic on one of the machines caused the
problem to go away.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.4.0-109-generic 5.4.0-109.123~18.04.1
ProcVersionSignature: Ubuntu 5.4.0-107.121~18.04.1-generic 5.4.174
Uname: Linux 5.4.0-107-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.27
Architecture: amd64
Date: Tue May 3 15:04:34 2022
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
PATH=(custom, no user)
SourcePackage: linux-signed-hwe-5.4
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971482/+subscriptions
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