From: Thomas Gleixner <tglx@linutronix.de>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Yong Zhang <yong.zhang0@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>
Subject: Re: [PATCH -rt] printk: Don't emit console_cpu_notify() for CPU_DYING
Date: Wed, 16 Nov 2011 15:48:11 +0100 (CET) [thread overview]
Message-ID: <alpine.LFD.2.02.1111161547560.4902@ionos> (raw)
In-Reply-To: <1321453190.4181.21.camel@frodo>
On Wed, 16 Nov 2011, Steven Rostedt wrote:
> On Wed, 2011-11-16 at 17:42 +0800, Yong Zhang wrote:
> > Otherwise we will get below warning:
> >
> > BUG: sleeping function called from invalid context at /build/linux/kernel/rtmutex.c:645
> > in_atomic(): 1, irqs_disabled(): 1, pid: 1054, name: migration/9
> > no locks held by migration/9/1054.
> > irq event stamp: 36
> > hardirqs last enabled at (35): [<ffffffff815f5b50>] _raw_spin_unlock_irq+0x30/0x70
> > hardirqs last disabled at (36): [<ffffffff810b7eaf>] stop_machine_cpu_stop+0x8f/0x110
> > softirqs last enabled at (0): [<ffffffff81051b53>] copy_process+0x6d3/0x1640
> > softirqs last disabled at (0): [< (null)>] (null)
> > Pid: 1054, comm: migration/9 Not tainted 3.2.0-rc1-rt2-11312-gbf51260-dirty #12
> > Call Trace:
>
> Thomas, doesn't printk not print to serial in atomic contexts? Or did
> that change?
Not that I know of.
next prev parent reply other threads:[~2011-11-16 14:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-16 9:42 [PATCH -rt] printk: Don't emit console_cpu_notify() for CPU_DYING Yong Zhang
2011-11-16 14:19 ` Steven Rostedt
2011-11-16 14:48 ` Thomas Gleixner [this message]
2011-11-17 5:29 ` Yong Zhang
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