Re: 2.6.17-mm4

[Andrew Morton]

"Michal Piotrowski" <michal.k.k.piotrowski@xxxxxxxxx> wrote:
>
> On 29/06/06, Dave Jones <davej@xxxxxxxxxx> wrote:
> > On Thu, Jun 29, 2006 at 10:39:33PM +0200, Michal Piotrowski wrote:
> >
> >  > This looks very strange.
> >  >
> >  > BUG: unable to handle kernel paging request at virtual address 6b6b6c07
> >
> > Looks like a use after free.
> >
> >  > printing eip:
> >  > c0138594
> >  > *pde=00000000
> >  > Oops: 0002 [#1]
> >  > 4K_STACK PREEMPT SMP
> >  > last sysfs file /class/net/eth0/address
> >  > Modules linked in: ipv6 af_packet ipt_REJECT xt_tcpudp x_tables
> >  > p4_clockmod speedstep_lib binfmt_misc
> >  >
> >  > (gdb) list *0xc0138594
> >  > 0xc0138594 is in __lock_acquire (include2/asm/atomic.h:96).
> >  > warning: Source file is more recent than executable.
> >
> > got a backtrace ?
> 
> Unfortunately no.
> 

How irritating.

CONFIG_FRAME_POINTER=y
# CONFIG_UNWIND_INFO is not set

OK.  Perhaps try setting 8k stacks?

Disable lockdep?
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