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From: Franck Bui-Huu <vagabon.xyz@gmail.com>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linux-pm@lists.linux-foundation.org, lkml <linux-kernel@vger.kernel.org>
Subject: Re: apm emulation driver broken ?
Date: Sun, 18 Nov 2007 20:57:33 +0100	[thread overview]
Message-ID: <4740992D.9030906@gmail.com> (raw)
In-Reply-To: <200711171346.51363.rjw@sisk.pl>

Rafael J. Wysocki wrote:
> On Saturday, 17 of November 2007, Franck Bui-Huu wrote:
>> ok so now we agreed on this point, can we assert that a user
>> land thread waiting for an event in an UNINTERRUPTIBLE state
>> will prevent a suspend to happen ?
> 
> Yes.
> 

So this driver seems really broken and actually I'm wondering if
it's used by anyone...

See the call to wait_even() made by apm_ioctl(). If any processes
run this, it will prevent the system to suspend...

And no, I don't know why call wait_event() is called.

		Franck

  parent reply	other threads:[~2007-11-18 19:57 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-16 15:06 apm emulation driver broken ? Franck Bui-Huu
2007-11-16 16:20 ` Rafael J. Wysocki
2007-11-16 16:20 ` Rafael J. Wysocki
2007-11-16 17:29   ` Franck Bui-Huu
2007-11-16 21:20     ` Rafael J. Wysocki
2007-11-17  8:53       ` Franck Bui-Huu
2007-11-17  9:59         ` Rafael J. Wysocki
2007-11-17 11:09           ` Rafael J. Wysocki
2007-11-17 11:09           ` Rafael J. Wysocki
2007-11-17 11:57           ` Franck Bui-Huu
2007-11-17 12:46             ` Rafael J. Wysocki
2007-11-17 12:46             ` Rafael J. Wysocki
2007-11-18 19:57               ` Franck Bui-Huu
2007-11-18 19:57               ` Franck Bui-Huu [this message]
2007-11-18 22:22                 ` Rafael J. Wysocki
2007-11-18 22:22                 ` Rafael J. Wysocki
2007-11-19 13:05                   ` Franck Bui-Huu
2007-11-19 13:05                   ` Franck Bui-Huu
2007-11-21  1:32                     ` Rafael J. Wysocki
2007-11-17 11:57           ` Franck Bui-Huu
2007-11-17  9:59         ` Rafael J. Wysocki
2007-11-17  8:53       ` Franck Bui-Huu
2007-11-16 21:20     ` Rafael J. Wysocki
2007-11-16 17:29   ` Franck Bui-Huu
  -- strict thread matches above, loose matches on Subject: below --
2007-11-16 15:06 Franck Bui-Huu

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