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

From: Tejun Heo
Date: Tue Jan 13 2015 - 10:27:46 EST


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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