From: James Bottomley <James.Bottomley@steeleye.com>
To: Jens Axboe <axboe@suse.de>
Cc: James Bottomley <James.Bottomley@SteelEye.com>,
Andrew Morton <akpm@digeo.com>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
Badari Pulavarty <pbadari@us.ibm.com>,
"Martin J. Bligh" <Martin.Bligh@us.ibm.com>,
Doug Ledford <dledford@redhat.com>
Subject: Re: possible use-after-free in 2.5.44 scsi changes
Date: Fri, 25 Oct 2002 17:14:43 -0500 [thread overview]
Message-ID: <200210252214.g9PMEhD04705@localhost.localdomain> (raw)
In-Reply-To: Message from Jens Axboe <axboe@suse.de> of "Fri, 25 Oct 2002 21:47:12 +0200." <20021025194712.GC1203@suse.de>
I think it may be bound up in another SCSI hang scenario I've been seeing.
I've instrumented the done on already done (and the locking in the SCSI
request fn).
The scenario I see is:
driver rejects command. Mid layer requeues. Several commands go by. Now I
get a done on an already done command. Unfortunately, the **** dump_stack()
doesn't print a trace so I still don't know where the command is coming from.
I'll keep looking.
James
next prev parent reply other threads:[~2002-10-25 22:15 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-25 1:39 possible use-after-free in 2.5.44 scsi changes Andrew Morton
2002-10-25 4:06 ` Doug Ledford
2002-10-25 4:40 ` Andrew Morton
2002-10-25 14:21 ` James Bottomley
2002-10-25 4:07 ` Patrick Mansfield
2002-10-25 14:16 ` James Bottomley
2002-10-25 18:34 ` James Bottomley
2002-10-25 18:49 ` Mike Anderson
2002-10-25 19:08 ` Patrick Mansfield
2002-10-25 19:41 ` Mike Anderson
2002-10-25 19:47 ` Jens Axboe
2002-10-25 22:14 ` James Bottomley [this message]
2002-10-25 22:18 ` Andrew Morton
2002-10-25 22:23 ` Badari Pulavarty
2002-10-26 0:13 ` James Bottomley
2002-10-26 0:18 ` Mike Anderson
2002-10-26 9:29 ` Jens Axboe
2002-10-27 0:50 ` James Bottomley
2002-10-27 21:20 ` Jens Axboe
2002-10-27 21:37 ` James Bottomley
2002-10-27 21:54 ` Jens Axboe
2002-10-30 17:39 ` Badari Pulavarty
2002-10-30 18:16 ` Jens Axboe
2002-10-30 19:31 ` Badari Pulavarty
2002-10-30 21:36 ` merlin hughes
2002-10-30 22:19 ` Badari Pulavarty
2002-10-31 2:17 ` merlin
2002-10-31 13:18 ` Jens Axboe
2002-10-31 14:41 ` merlin
2002-10-31 14:46 ` Jens Axboe
2002-10-31 15:04 ` Jens Axboe
2002-10-31 15:12 ` Jens Axboe
2002-10-31 17:41 ` merlin
2002-10-30 20:35 ` David S. Miller
2002-10-30 22:03 ` Badari Pulavarty
-- strict thread matches above, loose matches on Subject: below --
2002-10-31 17:57 Badari Pulavarty
2002-10-31 18:46 ` Jens Axboe
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