From: Michael Tokarev <mjt@tls.msk.ru>
To: Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: remount-ro & umount & quota interaction
Date: Wed, 06 Feb 2008 20:55:33 +0300 [thread overview]
Message-ID: <47A9F495.8060400@msgid.tls.msk.ru> (raw)
For a long time I'm bitten by a bad interaction
of mount -o remount,ro and quota operations.
The sequence is as follows:
mount /fs
quotaon -ug /fs
mount -o remount,ro /fs
umount /fs
At this point, umount never returns. /proc/$pid/wchan
shows vfs_quota_off:
Feb 6 20:53:25 linux kernel: umount D e5183eb8 0 8646 1
Feb 6 20:53:25 linux kernel: e5183ecc 00000086 00000002 e5183eb8 e5183eb0 00000000 c1db2540 c1db2684
Feb 6 20:53:25 linux kernel: c1db2684 c1c0dd00 00000000 cfd9f1c0 c0367080 c0367080 f5849000 f7f06880
Feb 6 20:53:25 linux kernel: f7e89d80 00000000 c0367080 b7c9795c 005f3997 00000000 000000ff 00000000
Feb 6 20:53:25 linux kernel: Call Trace:
Feb 6 20:53:25 linux kernel: [<c01a2a65>] vfs_quota_off+0x345/0x490
Feb 6 20:53:25 linux kernel: [<c013a3a0>] autoremove_wake_function+0x0/0x50
Feb 6 20:53:25 linux kernel: [<c0174bf6>] deactivate_super+0x46/0x80
Feb 6 20:53:25 linux kernel: [<c0188bba>] sys_umount+0x4a/0x240
Feb 6 20:53:25 linux kernel: [<c017637f>] sys_stat64+0xf/0x30
Feb 6 20:53:25 linux kernel: [<c0162069>] remove_vma+0x39/0x50
Feb 6 20:53:25 linux kernel: [<c0162b67>] do_munmap+0x197/0x1f0
Feb 6 20:53:25 linux kernel: [<c0188dc5>] sys_oldumount+0x15/0x20
Feb 6 20:53:25 linux kernel: [<c010417e>] sysenter_past_esp+0x5f/0x85
The filesystem is ext3. The issue is here for a long time,
at least since before 2.6.20, and is still present in 2.6.23
(I'll try 2.6.24 later today).
Can it be fixed please? :)
Thanks!
/mjt
next reply other threads:[~2008-02-06 17:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-06 17:55 Michael Tokarev [this message]
2008-02-07 10:28 ` remount-ro & umount & quota interaction Jan Kara
2008-02-07 10:49 ` Michael Tokarev
2008-02-07 14:04 ` Jan Kara
2008-02-07 14:10 ` Jan Engelhardt
2008-02-07 14:32 ` Jan Kara
2008-02-08 0:32 ` David Chinner
2008-02-07 15:36 ` Michael Tokarev
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=47A9F495.8060400@msgid.tls.msk.ru \
--to=mjt@tls.msk.ru \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.