linux-kernel - Re: qla2xxx BUG: workqueue leaked lock or atomic

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Date:	Thu, 8 Mar 2007 11:29:36 +0100
From:	Andre Noll <maan@...temlinux.org>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Andrew Vasquez <andrew.vasquez@...gic.com>,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	James Bottomley <James.Bottomley@...elEye.com>
Subject: Re: qla2xxx BUG: workqueue leaked lock or atomic

On 10:36, Jens Axboe wrote:
> - Edit .config and set CONFIG_DEBUG_INFO=y (near the bottom)
> - make oldconfig
> - rm block/cfq-iosched.o
> - make block/cfq-iosched.o
> - gdb block/cfq-iosched.o
> 
> (gdb) l *cfq_dispatch_insert+0x28
> 
> and see what that says. Should not take you more than a minute or so,
> would appreciate it!

No problem, here we go:

# gdb block/cfq-iosched.o
GNU gdb 6.4-debian
Copyright 2005 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1".

(gdb) l *cfq_dispatch_insert+0x28
0xcf8 is in cfq_dispatch_insert (block/cfq-iosched.c:865).
860     }
861
862     static void cfq_dispatch_insert(request_queue_t *q, struct request *rq)
863     {
864             struct cfq_data *cfqd = q->elevator->elevator_data;
865             struct cfq_queue *cfqq = RQ_CFQQ(rq);
866
867             cfq_remove_request(rq);
868             cfqq->on_dispatch[rq_is_sync(rq)]++;
869             elv_dispatch_sort(q, rq);

Regards
Andre
-- 
The only person who always got his work done by Friday was Robinson Crusoe

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