linux-kernel - Re: ata_eh_report() unable to handle kernel NULL pointer dereference

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Date:	Tue, 13 Jan 2015 10:27:38 -0500
From:	Tejun Heo <tj@...nel.org>
To:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: ata_eh_report() unable to handle kernel NULL pointer dereference

On Tue, Jan 13, 2015 at 11:25:09PM +0900, Sergey Senozhatsky wrote:
> Hi,
> 
> linux-next 20150112
> 
> [  934.572323] ata2: exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen
> [  934.572329] ata2: irq_stat 0x00400040, connection status changed
> [  934.572332] ata2: SError: { HostInt PHYRdyChg 10B8B DevExch }
> [  934.572341] BUG: unable to handle kernel NULL pointer dereference at 0000000000000460
> [  934.572346] IP: [<ffffffff812c722c>] ata_eh_report+0x3ad/0x74d

Any chance you can run addr2line on it and map it to the source line?

Thanks.

-- 
tejun
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