lkml.org 
[lkml]   [2008]   [Feb]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Kernel oops with bluetooth usb dongle
On Mon, 18 Feb 2008, Quel Qun wrote:

Added bluetooth wizards to CC

> > Can you please enable CONFIG_SLUB_DEBUG=y and CONFIG_SLUB_DEBUG_ON=y
> > and give it another try?
> >
> > If we can not catch it that way, I'll whip up a patch which points us
> > to the code which added the offending timer.
> >
> Hi,
>
> Note: I switched to 2.6.25-rc2. The only new thing I see is this message:
>
> hci_cmd_task: hci0 command tx timeout
>
> This comes from net/bluetooth/hci_core.c, line 1547
>
> There is indeed a timeout message in the log (at the end of this
> email). I tried to boot with slub_debug but did not get anything
> more. slabinfo -v does not report anything either.
>
> Crash log:
>
> hci_cmd_task: hci0 command tx timeout
> BUG: unable to handle kernel paging request at 6b6b6b6b

We got some more info ---------------------------^^^^^^^^
#define POISON_FREE 0x6b /* for use-after-free poisoning */

So the timer is in an allocated data structure, which is
freed without having removed the timer first.

> Sorry for the meager yield.

Hey, we know already more :)

Marcel, any idea on this one ?

Thanks,
tglx


\
 
 \ /
  Last update: 2008-02-18 14:15    [W:0.062 / U:1.356 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site