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SubjectRe: kmem_alloc: Bad slab magic (corrupt) (name=size-128)
Hello,

On Tue, Aug 03, 1999 at 04:56:19PM -0400, Craig B Agricola wrote:

> This looks suspiciously like a problem that was plaguing the Token Ring
> code around kernels 2.2.3-2.2.8 or so. How long does it take before you start
> getting this message after you initialize your eth0 interface? In the Token
> Ring case, the problem was traced down to lots of net packets that were lying
> about thier length, so when they were being free'd, they were freeing up less
> space than they were actually taking, so before long there was no more real
> memory available to the kernel. You may want to take a look with a packet
> sniffer to see if there are any bad packets flying around (maybe some bad
> NetBUI junk or something...)

I am guilty of not providing enough information.

Kernel 2.2.10 (stock), K6-2/400, 256M,

eth0: 3c509 at 0x340 tag 1, 10baseT port, address 00 10 4b b9 c8 15, IRQ 5.
3c509.c:1.16 (2.2) 2/3/98 becker@cesdis.gsfc.nasa.gov.

The machine was loaded with close to 50% 10Mbps ethernet, mostly apache and
ftp.


> On Tue, Aug 03, 1999 at 10:23:37PM +0200, Peter Gervai wrote:
> > Hello,
> >
> > Aug 3 21:04:46 my kernel: kmem_alloc: Bad slab magic (corrupt) (name=size-128)
> > Aug 3 21:04:46 my kernel: eth0: Couldn't allocate a sk_buff of size 60.
> > Aug 3 21:04:47 my kernel: kmem_alloc: Bad slab magic (corrupt) (name=size-128)
> > Aug 3 21:04:47 my kernel: eth0: Couldn't allocate a sk_buff of size 67.
> > Aug 3 21:04:47 my kernel: kmem_alloc: Bad slab magic (corrupt) (name=size-128)
> > (last messages repeated zillion times till reboot)
[...]

regards,
grin




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