Re: Kernel oops during netfilter memory allocation

Sami Farin
2007-08-22T17:55:42Z

On Wed, Aug 22, 2007 at 17:09:04 +0200, Thomas Jarosch wrote:
> Hello,
>
> > > kernel BUG at arch/i386/mm/highmem.c:38
> > >
> > > Try this.
>
> I just tried kernel 2.6.22.4 and 2.6.23-rc3. Using 2.6.23-rc3 vanilla,
> the box survives only 3 seconds with ipt_CRASH. Here's the backtrace,
> it's only slightly different:
>
> ------------[ cut here ]------------
> kernel BUG at arch/i386/mm/highmem.c:38!
> invalid opcode: 0000 [#1]
> Modules linked in: ipt_CRASH iptable_filter ip_tables x_tables deflate
> zlib_deflate twofish twofish_common serpent blowfish des cbc ecb blkcipher
> aes xcbcd

What are you using crypto stuff for?
Hopefully you are not calling crypto functions from
IRQ context.

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