From: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
To: "Tomita, Haruo" <haruo.tomita@toshiba.co.jp>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: Isn't there race issue during fput() and the dentry_open()?
Date: Mon, 4 Apr 2005 11:50:29 +0100 [thread overview]
Message-ID: <20050404105029.GY8859@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <BF571719A4041A478005EF3F08EA6DF0D963B0@pcsmail03.pcs.pc.ome.toshiba.co.jp>
On Mon, Apr 04, 2005 at 08:42:30AM +0900, Tomita, Haruo wrote:
> Indeed, Is there a good method of debugging this issue?
> In the check on the source, a doubtful place was not found except file_kill().
The obvious way would be to add a variable and do something like
#define file_list_lock() \
do { \
spin_lock(&files_lock); \
holder_pid = pid; \
} while(0)
and add a way to check its value (anything - sysrq, whatever).
That assumes that you can reproduce that deadlock at will, obviously...
next prev parent reply other threads:[~2005-04-04 10:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-03 23:42 Tomita, Haruo
2005-04-04 10:50 ` Al Viro [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-04-05 4:46 Tomita, Haruo
2005-04-03 1:56 Tomita, Haruo
2005-04-03 5:00 ` Al Viro
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