Re: 2.4.23 hard lock, 100% reproducible.

[Marcelo Tosatti]

On Mon, 8 Dec 2003, Tim Timmerman wrote:

> >>>>> "Mark" == Mark Symonds <mark@xxxxxxxxxxx> writes:
> 
> Mark> Hi,
> 
> >> 
> >> The first oops looks like:
> >> 
> >> Unable to handle kernel NULL pointer
> >> dereference at virtual address: 00000000
> >> 
> Mark> [...]
> 
> Mark> I'm using ipchains compatability in there, looks like 
> Mark> this is a possible cause - getting a patch right now,
> Mark> will test and let y'all know (and then switch to 
> Mark> iptables, finally). 
>       Let me just add a me-too here. 
> 
>       Haven't got the oops on my desk, here, but from what I could
>       see, the error occurred in find_appropriate_src, somewhere in
>       ipchains.  
> 
>       Further, possibly irrelevant datapoint: ABIT BP6, ne2k-pci and
>       3Com590 network cards. When the oops occurs, everything locks,
>       capslock and scrolllock are lit. 
> 
>       I can reproduce the error by letting a second system ping the
>       first, on the internal network. Sometimes it doesn't even
>       complete a full boot. 
>       
>       I'll try and capture more detail tonight. 

Tim,

Please try the updated 2.4 BK tree (you can use -bk5, 
http://www.kernel.org/pub/linux/kernel/v2.4/snapshots/patch-2.4.23-bk5.bz2).

It contains a fix for a known bug in the netfilter which might what you're 
hitting.


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