linux-kernel - Re: PANIC: ata_qc_new

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Message-ID: <20140818212116.GD24023@mtj.dyndns.org>
Date:	Mon, 18 Aug 2014 16:21:16 -0500
From:	Tejun Heo <tj@...nel.org>
To:	Nick Krause <xerofoify@...il.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Peter Hurley <peter@...leysoftware.com>,
	Jesse Brandeburg <jesse.brandeburg@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Dan Williams <dan.j.williams@...el.com>
Subject: Re: PANIC: ata_qc_new_init crashes at boot

Hello,

Sorry about the delay.  Cc'ing Dan.

On Wed, Aug 06, 2014 at 02:02:47PM -0400, Nick Krause wrote:
> On Wed, Jul 23, 2014 at 4:39 AM, Peter Zijlstra <peterz@...radead.org> wrote:
> > On Tue, Jul 22, 2014 at 03:48:02PM -0400, Peter Hurley wrote:
> >> [ +cc Tejun ]
> >>
> >> On 07/22/2014 03:26 PM, Jesse Brandeburg wrote:
> >> > This is a repeatable panic, happens every boot (and prevents starting my system)
> >> >
> >> > [    8.732993] sd 6:0:1:0: [sdb] Attached SCSI disk
> >> > [    8.733857]  sda: sda1 sda2 sda3
> >> > [    8.734318] sd 6:0:0:0: [sda] Attached SCSI disk
> >> > [    8.737943] BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
> >> > [    8.737947] IP: [<ffffffff814e0618>] ata_qc_new_init+0x188/0x1b0
> >
> > I too have this problem on one of my machines. Let me know if there's
> > anything you need.

Are you still seeing this on every boot?  ISTR this getting fixed but
I could be confused.  Dan, the original thread is

  http://lkml.kernel.org/g/CAEuXFEy5=0XkqPiWQNiGbpi5EHSzq5f_U7Sj0t2bhO_1Lqe5vw@mail.gmail.com

Thanks.

-- 
tejun
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