Re: bug in 2.6.26-rc9: sleeping function called from invalid contextat kernel/rwsem:21

[Giacomo A. Catenazzi]

Vegard Nossum wrote:
> On Thu, Jul 10, 2008 at 10:19 AM, Giacomo A. Catenazzi <cate@xxxxxxxxxx> wrote:
> > Hello,
> >
> > yesterday at shutdown I had a crash. Unfortunately it seems
> > that there was one (or more) oops missing. The bug appeared
> > at unmounting partition at shutdown, so there are no logs
> > of the previous messages.
>
> Thanks for the report.
>
> It would be really useful to know which filesystems you are/were
> using, including virtual filesystems like sysfs. Maybe you are using
> ecryptfs or FUSE?
>
> (It would also be interesting to see if you could run
> /etc/rc0.d/S40umountfs while the machine is up, to see if you can get
> the segfault but keep the machine usable enough to get the whole log.)

At home, my disks are only ext2.
sysfs, procfs and other system fs and /dev/* mount points are not
umounted in /etc/rc0.d/S40umountfs.

By a quick look (I'm not at home), it seems that on my home computer
only ext2 fs are umounted by /etc/rc0.d/S40umountfs.

As I said, the bug doesn't seems reproducible,
but I'll try harder later.

At subsequent boot, the unclean fs were: / /var and /usr,
Checking was done without error messages, so I think no busy
or opened files at time of crash.

Note: at the boot, one filesystem was checked (after 30+x),
I think it was /home. But I really think it is unrelated
(but it means that some of the other fs have a boot count > 30)

ciao
	cate
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