Hi Ingo,
CC'ed Steven Rostedt
I found the following patch cause regression by bisect.
2.6.25-rc2-mm1: doesn't boot
2.6.25-rc2-mm1 + revert following patch: works well
but I think it is very strange.
runqueue_is_locked() seems simple and have not bug. ;)
What do you think this problem?
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commit 033394c2c097215ac556a446154af24fbf18b064
Author: Steven Rostedt <srostedt@xxxxxxxxxx>
Date: Mon Feb 25 21:15:44 2008 +0100
printk: dont wake up klogd with the rq locked
It is not wise to place a printk where the runqueue lock is held.
>
> * KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> wrote:
>
> > > hm, that's a bit weird - nothing really should have broken it. Could you
> > > try to do a specific bisection of sched-devel.git:
> > >
> > > http://people.redhat.com/mingo/sched-devel.git/README
> >
> > How do I know revision of git-sched.patch of 2.6.25-rc2-mm1? Should I
> > do bisect from HEAD of sched-devel.git?
>
> yeah, please. If it's caused by sched-devel.git then you should see the
> hang there too.
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