On Wed, 30 Sep 2009, Thomas Gleixner wrote:
> On Wed, 30 Sep 2009, Luis Claudio R. Goncalves wrote:
>
> > Hello,
> >
> > This is apparently a new manifestation of the same issue I have been chasing
> > for quite a while and have been failing in a very shameful way to fix. In
> > the original issue, whenever I run deluge (bit torrent client) at
> > SCHED_FIFO, I got the error message below and system would freeze / panic
> > during shutdown:
> >
> > ================================================
> > [ BUG: lock held when returning to user space! ]
> > ------------------------------------------------
> > deluged/3035 is leaving the kernel with locks still held!
> > 1 lock held by deluged/3035:
> > #0: (&lock->lock){......}, at: [<ffffffffa02ae965>] ipt_do_table+0x10c/0x5f3 [ip_tables]
>
> Yikes. Can you please decode the code line for ffffffffa02ae965 ? Does
> the bug happen with function tracer enabled ? If yes, enable
> ftrace_dump_on_oops hook up a serial console and capture the dump.
I'm quite sure that I know what breaks. Working on a fix.
Thanks,
tglx
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