On Tue, May 16, 2023 at 07:53:19AM -0700, Darrick J. Wong wrote: > On Tue, May 16, 2023 at 01:28:00PM +0100, Matthew Wilcox wrote: > > Plain 6.4.0-rc2 with a relatively minor change to the futex code that > > I cannot believe was in any way responsible for this. > > > > kworkers blocked all over the place. Some on XFS_ILOCK_EXCL. Some on > > xfs_buf_lock. One in xfs_btree_split() calling wait_for_completion. > > > > This was an overnight test run that is now dead, so I can't get any > > more info from the locked up kernel. I have the vmlinux if some > > decoding of offsets is useful. > > It would be kinda nice to sysrq-t if that's at all possible. I don't > see the kworker that's handling the btree split, and I wonder what that > thread is up to. Reproduced it. Entire sysrq-t attached.
Attachment:
sysrq-t.gz
Description: application/gzip
