Re: 2.6.18: Kernel BUG at mm/rmap.c:522

[Peter Zijlstra]

On Wed, 2006-10-04 at 17:42 +0200, Andre Noll wrote:
> On 23:59, Nick Piggin wrote:
> 
> > Ah, this old thing. I hope it is repeatable?
> 
> Well, it happened on both of the new machines we got last week. One
> of these is still up BTW and I'm able to ssh into it.
> 
> > What we really want is the bit before this, the "Eeek! page_mapcount went
> > negative" part.
> 
> There's no such message in the log. The preceeding lines are just normal
> startup messages:
> 
> 	Adding 16779852k swap on /dev/sda1.  Priority:42 extents:1 across:16779852k
> 	Adding 16779852k swap on /dev/sdb1.  Priority:42 extents:1 across:16779852k
> 	process `syslogd' is using obsolete setsockopt SO_BSDCOMPAT
> 
> > It is also nice if we can work out where the page actually came from. The
> > following attached patch should help out a bit with that, if you could
> > run with it?
> 
> Okay. I'll reboot with your patch and let you know if it crashes again.

enable CONFIG_DEBUG_VM to get that.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/