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Message-ID: <20070308093651.GC9671@kernel.dk>
Date:	Thu, 8 Mar 2007 10:36:51 +0100
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Andre Noll <maan@...temlinux.org>
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 Thu, Mar 08 2007, Andre Noll wrote:
> On 10:02, Jens Axboe wrote:
> > Do you still have the vmlinux? It'd be interesting to see what
> > 
> > $ gbd vmlinux
> > (gdb) l *cfq_dispatch_insert+0x28
> > 
> > says, 
> 
> The vmlinux in the kernel dir is dated March 5 and my bug report
> was Feb 28. So I'm afraid it's gone. I tried the gdb command anyway
> but it only gave me
> 
> 	No symbol table is loaded.  Use the "file" command.

Yeah, you'd need CONFIG_DEBUG_INFO enabled as well. I don't think there
were any CFQ changes between feb 28 and march 5, so you could probably
still try it out. A quicker way:

- 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!

-- 
Jens Axboe

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