Re: 2.6.17-mm4

Andrew Morton
2006-06-29T20:55:15Z

"Michal Piotrowski" <michal.k.k.piotrowski@gmail.com> wrote:
>
> On 29/06/06, Dave Jones <davej@redhat.com> 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?