TWIMC: this mail is primarily send for documentation purposes and for regzbot, my Linux kernel regression tracking bot. These mails usually contain '#forregzbot' in the subject, to make them easy to spot and filter.
On 23.09.22 09:46, Thorsten Leemhuis wrote:
Hi, this is your Linux kernel regression tracker. CCing the regression mailing list, as it should be in the loop for all regressions, as explained here: https://www.kernel.org/doc/html/latest/admin-guide/reporting-issues.html Also CCing the stable ml, the NFS maintainers, and the authors of 31b992b3c39b, too.
On 22.09.22 23:46, Kurt Garloff wrote:
a freshly compiled 5.15.69 kernel showed hangs with NFS. Typically mkdir would end up in a 'D' process state, but I have seen ls -l hanging as well. Server is kernel NFS 5.15.69.
After reverting the last three NFS related commits, a68a734b19af NFS: Fix WARN_ON due to unionization of nfs_inode.nrequests 3b97deb4abf5 NFS: Fix another fsync() issue after a server reboot 31b992b3c39b NFS: Save some space in the inode
things work normally again.
As you can see, I suspected 31b992b3c39b ...
FWIW, that's e591b298d7ec in mainline.
I know this report is light on details; if nothing like this has been reported yet, let me know and I'll try to find some time to investigate further.
PS: Please keep me on Cc, I'm not subscribed to linux-nfs.
[...]
#regzbot ^introduced 31b992b3c39b #regzbot ignore-activity
#regzbot fixed-by: 27bf7a5d11987