[Pm-utils] upower/pm-utils deadlock when pm-suspend called by upowerd
vuntz at gnome.org
Wed Jun 23 02:39:19 PDT 2010
Le mardi 22 juin 2010, à 19:32 -0500, Victor Lowther a écrit :
> On Tue, 2010-06-22 at 18:33 -0500, Victor Lowther wrote:
> > On Tue, 2010-06-22 at 12:54 +0200, Vincent Untz wrote:
> > > Hi,
> > >
> > > (I'm not subscribed, please cc me if you need input from me :-))
> > >
> > > There's a nice deadlock when pm-suspend is called by upowerd:
> > > The results of this is that the calling process is blocked for some time
> > > (a dbus timeout), which can result in ugly ghost windows. See
> > > https://bugzilla.novell.com/show_bug.cgi?id=615646 for example.
> > >
> > > Richard is thinking that the pm-powersave part might be better handled
> > > by upowerd itself instead of a hook for pm-suspend...
> > pm-utils is supposed to be lower level than upowerd. Since we no longer
> > rely on hal, we should just teach on_ac_power how to get what we need
> > straight from sysfs.
> > It looks pretty strightforward, I will have a patch shortly.
> OK, there is a rewritten on_ac_power in pm-utils git master. Check it
> out and see if it works for you.
Works great, thanks!
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