From: Dave Hansen <haveblue@us.ibm.com>
To: Erez Zadok <ezk@cs.sunysb.edu>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: OOPSes + WARNING: at fs/file_table.c:262 __fput() in -mm 2007-11-06-02-32++
Date: Fri, 09 Nov 2007 10:44:13 -0800 [thread overview]
Message-ID: <1194633853.7078.109.camel@localhost> (raw)
In-Reply-To: <200711091823.lA9IN9Bp000989@agora.fsl.cs.sunysb.edu>
On Fri, 2007-11-09 at 13:23 -0500, Erez Zadok wrote:
>
> Setup: FC6 system with MM snapshot broken-out-2007-11-06-02-32 and
> these two
> patches added:
>
> r-o-bind-mounts-track-number-of-mount-writer-fix-buggy-loop.patch
> r-o-bind-mounts-track-number-of-mount-writer-fix-buggy-loop-checkpatch-fixes.patch
>
> All I do is boot the system with said kernel, wait a few seconds,
> then shut
> it down with "init 0". As services shutdown, I get this:
>
> Stopping RPC idmapd:
>
> kernel: __fput() of writeable file with no mnt_want_write()
> kernel: WARNING: at fs/file_table.c:262 __fput()
> kernel: [<c010283e>] show_trace_log_lvl+0x12/0x25
> kernel: [<c0103042>] show_trace+0xd/0x10
> kernel: [<c010313e>] dump_stack+0x15/0x17
> kernel: [<c01491a4>] __fput+0x153/0x203
> kernel: [<c014952d>] fput+0x2d/0x32
> kernel: [<c0146c8a>] filp_close+0x50/0x5a
> kernel: [<c01104fc>] put_files_struct+0x7c/0xbe
> kernel: [<c0110575>] __exit_files+0x37/0x3c
> kernel: [<c01115de>] do_exit+0x1ed/0x653
> kernel: [<c0111ab2>] sys_exit_group+0x0/0x11
> kernel: [<c01183fc>] get_signal_to_deliver+0x3c4/0x3e8
> kernel: [<c0101873>] do_notify_resume+0x8c/0x6c4
> kernel: [<c0102339>] work_notifysig+0x13/0x1a
This looks like RPC idmapd had a file open for write when it tried to
exit. However, that file never had a mnt_want_write() taken for it.
This isn't a new bug, but the new debugging code found it much faster.
I'm looking for a fix now.
-- Dave
next prev parent reply other threads:[~2007-11-09 18:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-09 18:23 OOPSes + WARNING: at fs/file_table.c:262 __fput() in -mm 2007-11-06-02-32++ Erez Zadok
2007-11-09 18:44 ` Dave Hansen [this message]
2007-11-09 20:10 ` BUG: can't reboot -nf " Erez Zadok
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=1194633853.7078.109.camel@localhost \
--to=haveblue@us.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=ezk@cs.sunysb.edu \
--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.