[lkml]   [2011]   [May]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: apparent regression (crash) -
11.05.2011 23:19, James Bottomley wrote:
> On Wed, 2011-05-11 at 08:30 +0200, Jiri Slaby wrote:
>> On 05/10/2011 09:55 PM, Michael Tokarev wrote:
>>> Hello.
>>> I just tried (which has been released today), and
>>> discovered that it crashes during bootup on my machine.
>>> with exactly the same config works.
>> Is it reproducible?

Yes it is 100% reproducible on at least 2 of my machines,
happens on every boot.

>>> Unfortunately I don't have time _right now_ to debug the

>>> [ 106.761932] input: Logitech USB-PS/2 Optical Mouse as /devices/pci0000:00/0000:00:12.1/usb2/2-2/2-2:1.0/input/input6
>>> [ 106.762170] generic-usb 0003:046D:C044.0004: input,hidraw0: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on usb-0000:00:12.1-2/input0
>>> [ 106.994177] scsi 10:0:0:0: Direct-Access Kingston DT HyperX HMAP PQ: 0 ANSI: 0 CCS
>>> [ 106.994458] sd 10:0:0:0: Attached scsi generic sg3 type 0
>>> [ 106.994628] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
>>> [ 106.994755] IP: [<ffffffff811bec1b>] elv_queue_empty+0x1b/0x30
> Hmm, it's another missing elevator guard, like this patch:
> I think the bug here is that q->elevator is null, so dereferencing
> elevator->ops gives the bug.

With that patch, both problem machines are now booting
ok here, so you can add my Tested-By line if you want.

I wonder why there's so many reports about this issue.

Speaking of elevator, I've "elevator=cfq" in kernel command
line, fwiw.

11.05.2011 11:58, Wolfgang Walter wrote:
> I got almost the same crash with (whereas worked)
> with a certain machine. It only (and always) happens if a certain usb-stick is
> attached when booting. Replacing it with another model "fixed" it.

I too have an usb storage adaptor here, but it's an internal
card reader connected to an onboard usb header.

What's common in both and series in this area?

Thank you!


 \ /
  Last update: 2011-05-11 21:33    [W:0.079 / U:2.184 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site