From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Ingo Molnar <mingo@elte.hu>, Steven Rostedt <srostedt@redhat.com>
Cc: kosaki.motohiro@jp.fujitsu.com,
Lee Schermerhorn <Lee.Schermerhorn@hp.com>,
linux-ia64 <linux-ia64@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Tony Luck <tony.luck@intel.com>, Ingo Molnar <mingo@redhat.com>,
Bob Picco <bob.picco@hp.com>, Eric Whitney <eric.whitney@hp.com>,
akpm@linux-foundation.org
Subject: Re: 2.6.25-rc2-mm1 - boot hangs on ia64
Date: Thu, 28 Feb 2008 19:38:01 +0900 [thread overview]
Message-ID: <20080228192509.BDCF.KOSAKI.MOTOHIRO@jp.fujitsu.com> (raw)
In-Reply-To: <20080227071118.GA4638@elte.hu>
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?
-------------------------------------------------------------------
commit 033394c2c097215ac556a446154af24fbf18b064
Author: Steven Rostedt <srostedt@redhat.com>
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@jp.fujitsu.com> 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.
next prev parent reply other threads:[~2008-02-28 10:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-25 15:56 Lee Schermerhorn
2008-02-26 11:25 ` KOSAKI Motohiro
2008-02-26 11:31 ` Ingo Molnar
2008-02-27 1:42 ` KOSAKI Motohiro
2008-02-27 7:11 ` Ingo Molnar
2008-02-28 10:38 ` KOSAKI Motohiro [this message]
2008-02-28 11:50 ` Ingo Molnar
2008-02-28 12:13 ` KOSAKI Motohiro
2008-02-28 18:13 ` Andrew Morton
2008-02-28 19:12 ` Ingo Molnar
2008-02-28 19:24 ` Andrew Morton
2008-02-28 19:32 ` Ingo Molnar
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