Re: xfs oops (CVS-2004-05-15_05:00_UTC)

[Krzysztof Rusocki <kszysiu@xxxxxxxxxxxxxxxxxxxx>]

On Sun, Jun 27, 2004 at 12:16:50AM +0200, Krzysztof Rusocki wrote:
> On Sat, Jun 26, 2004 at 11:02:30PM +0100, Christoph Hellwig wrote:
> > 
> > Hmm, it looks like the pagebuf already got freed by pagebuf_iostrategy
> > when we hit the next line.

Indeed, that seems to be it - in 2 hours I've got 26 cases where
pb->pb_target was altered by pagebuf_iostrategy():

pagebuf_daemon: pb->pb_target changed! 0xc7ec7e34 -> 0x6b6b6b6b
(yes that's my trivial check)

What _possibly_ may be found interesting - original pb_target value is
constant through all those messages, I'm not familiar with kernel
or xfs internals enough to say whether it's something usual or not...
(are pagebufs allocated via slab allocator?)

Until now I haven't seen any side effects, system seems to work fine.


Krzysztof