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SubjectRe: [2.6.33-rc5] starting emacs makes lockdep warning
Date
> > On Tue, Jan 26, 2010 at 11:20 AM, KOSAKI Motohiro
> > <kosaki.motohiro@jp.fujitsu.com> wrote:
> > > Hi
> > >
> > > Current linus tree made following lockdep warning when starting emacs command.
> > > Is this known issue?
> > >
> > >
> > > =========================================================
> > > [ INFO: possible irq lock inversion dependency detected ]
> > > 2.6.33-rc5 #77
> > > ---------------------------------------------------------
> > > emacs/1609 just changed the state of lock:
> > >  (&(&tty->ctrl_lock)->rlock){+.....}, at: [<ffffffff8127c648>] tty_fasync+0xe8/0x190
> > > but this lock took another, HARDIRQ-unsafe lock in the past:
> > >  (&(&sighand->siglock)->rlock){-.....}
> > >
> > > and interrupts could create inverse lock ordering between them.
> > >
> > >
> >
> > Hey,
> >
> > does reverting commit 703625118 help?
>
> Seems solved.
>
> Thanks.

I'm sorry.
I forgot to cc related person at last mail.

Greg, can you please consider revert commit 703625118?




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