On Tue, May 30, 2006 at 03:17:28PM +0200, Jens Axboe wrote:
> On Sat, May 27 2006, Dave Jones wrote:
> > On Sat, May 27, 2006 at 09:07:24AM +0200, Jens Axboe wrote:
> > > On Fri, May 26 2006, Andrew Morton wrote:
> > > > Dave Jones <[email protected]> wrote:
> > > > >
> > > > > Was playing with googles new picasa toy, which hammered the disks
> > > > > hunting out every image file it could find, when this popped out:
> > > > >
> > > > > Slab corruption: (Not tainted) start=ffff810012b998c8, len=168
> > > > > Redzone: 0x5a2cf071/0x5a2cf071.
> > > > > Last user: [<ffffffff8032c319>](cfq_free_io_context+0x2f/0x74)
> > > > > 090: 10 bd 28 1b 00 81 ff ff 6b 6b 6b 6b 6b 6b 6b 6b
> > > > > Prev obj: start=ffff810012b99808, len=168
> > > > > Redzone: 0x5a2cf071/0x5a2cf071.
> > > > > Last user: [<ffffffff8032c319>](cfq_free_io_context+0x2f/0x74)
> > > > > 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > > > > 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > > > > Next obj: start=ffff810012b99988, len=168
> > > > > Redzone: 0x5a2cf071/0x5a2cf071.
> > > > > Last user: [<ffffffff8032c319>](cfq_free_io_context+0x2f/0x74)
> > > > > 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > > > > 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > >
> > > Pretty baffling... cfq has been hammered pretty thoroughly over the
> > > last months and _nothing_ has shown up except some performance anomalies
> > > that are now fixed. Since daves case (at least) seems to be
> > > use-after-free, I'll see if I can reproduce with some contrived case.
> > > I'm asuming that picasa forks and exits a lot with submitted io in
> > > between than may not have finished at exit.
> >
> > The second time I hit it, was actually during boot up.
>
> Dave, do you have any io scheduler switching going on?
Nope, everything set to use CFQ as default, and left that way.
Dave
--
http://www.codemonkey.org.uk
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
