Re: PANIC: ata_qc_new_init crashes at boot

From: Tejun Heo
Date: Mon Aug 18 2014 - 17:21:27 EST


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@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxxx

Thanks.

--
tejun
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