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SubjectRe: 2.6.25-rc2-mm1 - boot hangs on ia64
On Thu, 28 Feb 2008 20:12:14 +0100
Ingo Molnar <mingo@elte.hu> wrote:

>
> * Andrew Morton <akpm@linux-foundation.org> wrote:
>
> > On Thu, 28 Feb 2008 12:50:41 +0100 Ingo Molnar <mingo@elte.hu> wrote:
> >
> > > @@ -1000,7 +1001,7 @@ void release_console_sem(void)
> > > * If we try to wake up klogd while printing with the runqueue lock
> > > * held, this will deadlock.
> > > */
> > > - if (wake_klogd && !runqueue_is_locked())
> > > + if (wake_klogd)
> > > wake_up_klogd();
> > > }
> >
> > I don't think we shoudl have added that hack in the first place. It
> > solves a problem which about three developers hit four times in five
> > years but it has made kernel logging less reliable for everyone.
>
> well, the problem was ia64, not a problem on x86 or other platforms.

I am referring to the original change which made klogd wakeups unreliable.


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