From: Peter Zijlstra <peterz@infradead.org>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Xiaotian Feng <dfeng@redhat.com>,
LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
Venkatesh Pallipadi <venki@google.com>,
Suresh Siddha <suresh.b.siddha@intel.com>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: BUG: sleeping function called from invalid context at kernel/mutex.c
Date: Wed, 06 Apr 2011 10:07:33 +0200 [thread overview]
Message-ID: <1302077253.2225.1360.camel@twins> (raw)
In-Reply-To: <201104060643.38301.rjw@sisk.pl>
On Wed, 2011-04-06 at 06:43 +0200, Rafael J. Wysocki wrote:
> > the $subject text sound like it triggered might_sleep(), and that had a
> > system_state != SYSTEM_RUNNING bail condition, but then, I've no clue
> > what resume looks like.
>
> Early resume looks pretty much like the system startup, e.g. everything
> called from syscore_ops should not be sleepable (although mutexes shouldn't
> trigger, because that code is effectively single-threaded, unless somebody
> holds the mutex in question when that code is being executed, but that would
> deadlock anyway).
Right, so system_state != SYSTEM_RUNNING should be true for resume?
next prev parent reply other threads:[~2011-04-06 8:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-02 11:47 Xiaotian Feng
2011-04-02 19:12 ` Thomas Gleixner
2011-04-05 7:41 ` Peter Zijlstra
2011-04-06 4:43 ` Rafael J. Wysocki
2011-04-06 8:07 ` Peter Zijlstra [this message]
2011-04-07 5:53 ` Rafael J. Wysocki
2011-04-07 5:22 ` Xiaotian Feng
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