Re: kernel panic in latest vanilla stable, while using nameif with "alive" pppoe interfaces

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On Tuesday 20 October 2009 14:50:09 Cyrill Gorcunov wrote:
> On 10/20/09, Denys Fedoryschenko <denys@xxxxxxxxxxx> wrote:
> > On Tuesday 20 October 2009 06:04:35 Cyrill Gorcunov wrote:
> >> On 10/20/09, Denys Fedoryschenko <denys@xxxxxxxxxxx> wrote:
> >> > On Tuesday 20 October 2009 00:22:39 Michal Ostrowski wrote:
> >> >> I'm assuming that there was a race in us sending patches at nearly
> >> >> the same
> >> >> time I'm convinced now that the flush_lock can die, and the patch I
> >> >> sent
> >> >> out kills it.
> >> >
> >> > o_O
> >> >
> >> > I am drowning in patches. Just let me know which one to test :-)
> >>
> >> Oh ;) Try out latest Michal's patch (and then mine). I'll continue
> >> digg this issue at next spare time slot. Thanks!
> >
> > Tried your patch, panic almost immediately
> > Here is a text of panic message over netconsole
> > http://www.nuclearcat.com/files/panic_pppoe3.txt
> > It is  different now, before it was pppoe_device_event, now in pppoe_rcv
>
> Thanks a lot! I'll back with new one in a couple of hours. Meanwhile i
> suppose you may try Michal's patch as well.
I did, it didn't help.
Maybe i can run some debugging options in kernel?
Also i can add debug(printk) lines in kernel if you want, to see where is bug 
appearing.
Note, i told to Michal, so will tell here, this pc is hyperthreading P4, as i 
know it is very good to trigger various SMP race conditions.
I can try also it with nosmp if u want.

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