From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: xfs <linux-xfs@vger.kernel.org>
Cc: Brian Foster <bfoster@redhat.com>
Subject: quotacheck deadlock?
Date: Wed, 19 Jul 2017 23:58:04 -0700 [thread overview]
Message-ID: <20170720065804.GR4224@magnolia> (raw)
Hi,
I ran the following sequence of commands on 4.13-rc1:
# mkfs.xfs -f /dev/sdf
# xfs_db -x -c 'sb 0' -c 'addr rootino' -c 'write -d core.uid 4294967295' /dev/sdf
# mount /dev/sdf -o usrquota
The kernel reports that it's starting quotacheck, but never finishes.
echo t > /proc/sysrq produces this for the hung mount command:
mount R running task 0 988 895 0x00000000
Call Trace:
? sched_clock_cpu+0xa8/0xe0
? xfs_qm_flush_one+0x3c/0x120 [xfs]
? lock_acquire+0xac/0x200
? lock_acquire+0xac/0x200
? xfs_qm_flush_one+0x3c/0x120 [xfs]
? xfs_qm_dquot_walk+0xa1/0x170 [xfs]
? get_lock_stats+0x19/0x60
? get_lock_stats+0x19/0x60
? xfs_qm_dquot_walk+0xa1/0x170 [xfs]
? xfs_qm_dquot_walk+0x125/0x170 [xfs]
? radix_tree_gang_lookup+0xd1/0xf0
? xfs_qm_shrink_count+0x20/0x20 [xfs]
? xfs_qm_dquot_walk+0xbb/0x170 [xfs]
? kfree+0x23f/0x2d0
? kvfree+0x2a/0x40
? xfs_bulkstat+0x315/0x680 [xfs]
? xfs_qm_get_rtblks+0xa0/0xa0 [xfs]
? xfs_qm_quotacheck+0x2bd/0x360 [xfs]
? xfs_qm_mount_quotas+0x106/0x1f0 [xfs]
? xfs_mountfs+0x6f2/0xb00 [xfs]
? xfs_fs_fill_super+0x483/0x610 [xfs]
? mount_bdev+0x180/0x1b0
? xfs_finish_flags+0x150/0x150 [xfs]
? xfs_fs_mount+0x15/0x20 [xfs]
? mount_fs+0x14/0x80
? vfs_kern_mount+0x67/0x170
? do_mount+0x195/0xd00
? kmem_cache_alloc_trace+0x231/0x2a0
? SyS_mount+0x95/0xe0
? entry_SYSCALL_64_fastpath+0x1f/0xbe
Any thoughts? I'm not sure what's going on for sure, other than the
call stack looks funny and it's midnight so I'm going to sleep. :)
--D
next reply other threads:[~2017-07-20 6:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-20 6:58 Darrick J. Wong [this message]
2017-07-20 12:38 ` quotacheck deadlock? Brian Foster
2017-07-20 18:58 ` Darrick J. Wong
2017-07-20 20:01 ` Darrick J. Wong
2017-07-21 14:22 ` Brian Foster
2017-07-21 16:21 ` Darrick J. Wong
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