linux-kernel - Re: Crash when copying from broken external hdd

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Message-ID: <547B48F3.6020909@nod.at>
Date:	Sun, 30 Nov 2014 17:42:27 +0100
From:	Richard Weinberger <richard@....at>
To:	Simon Danner <danner.simon@...il.com>,
	Laurence Oberman <oberman.l@...il.com>
CC:	LKML <linux-kernel@...r.kernel.org>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	Jens Axboe <axboe@...nel.dk>,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: Crash when copying from broken external hdd

Am 30.11.2014 um 17:36 schrieb Simon Danner:
> Hi,
> here the two screenshots i could take, from 3.17.4 and 3.18 git.

You're hitting BUG_ON(blk_queued_rq(req)); in blk_finish_request()

Thanks,
//richard

> Thanks
> Simon
> 
> On Sun, 2014-11-30 at 10:58 -0500, Laurence Oberman wrote:
>> I need more of the stack if you have it, the screenshot is not attached.
>> Thanks
>> Laurence
>>
>> On Sun, Nov 30, 2014 at 6:11 AM, Richard Weinberger
>> <richard.weinberger@...il.com> wrote:
>>> On Sat, Nov 29, 2014 at 11:52 AM, Simon Danner <danner.simon@...il.com> wrote:
>>>> Hello,
>>>> i get the following crash after i try to copy files from a broken
>>>> external hdd to another external hdd.
>>>> It happens after a few minutes, with latest git and 3.17.4 from Arch.
>>>> Attached screenshot is from latest mainline git.
>>>>
>>>> i hope this can be fixed somehow,
>>>> Regards Simon Danner
>>>
>>> Can you decode scsi_requed_end+0x122?
>>> CC'ing block and scsi folks.
>>>
>>> --
>>> Thanks,
>>> //richard
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