Re: 2.6.16-mm1

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I hadn't noticed immediately in the ooops, but it is something to do
with the Hardware Abstraction Layer Daemon from http://freedesktop.org/Software/hal
I can't reproduce it without that daemon loaded either.  I wonder if the
last accessed sysfs file mentioned in the oops (sda/size) is relevent
also.

My exact steps (with hald loaded) are:
plug in ipod
mount /mnt/ipod
unzip -d /mnt/ipod rockbox.zip
eject /dev/sda
unplug ipod
immediately here, the oops prints.

Interestingly after this happens, the system remains at a pretty high
level of functioning, and further mounts and unmounts and ejects of the
ipod do not cause another oops.

On Thu, 03/23/06 at 18:58:10 -0800, Andrew Morton wrote:
> Brandon Low <[email protected]> wrote:
> >
> > On Thu, 03/23/06 at 18:24:11 -0800, Andrew Morton wrote:
> >  > Brandon Low <[email protected]> wrote:
> >  > >
> >  > > I'm getting a repeatable oops regardless of io scheduler (it looks like
> >  > > it's in cfq code so I first tried changing schedulers) on USB
> >  > > disconnect.
> >  > > 
> >  > OK, thanks.  There have been some recent changes affecting iosched context
> >  > lifetime management, which might be causing this.
> >  > 
> >  > If you have time, it'd be useful if you could retest with
> >  > ftp://ftp.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.16-git6.gz -
> >  > that'll tell us whether it's that code or if it's something which is only
> >  > in -mm.
> > 
> >  Unable to reproduce with identical steps on git6.
> 
> ok..
> 
> I tried various combinations of plugging, mounting, unmounting and
> unplugging a USB memory stick.  No problems.
> 
> Can you prepare a step-by-step guide to making this happen?
> 
> Thanks.
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