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From: Thomas Gleixner <tglx@linutronix.de>
To: Jiri Kosina <jkosina@suse.cz>
Cc: Zdenek Kabelac <zdenek.kabelac@gmail.com>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	avi@qumranet.com
Subject: Re: BUG: using smp_processor_id() in preemptible [00000000] code: pm-suspend/17334
Date: Wed, 4 Jun 2008 12:54:14 +0200 (CEST)	[thread overview]
Message-ID: <alpine.LFD.1.10.0806041252540.3235@apollo.tec.linutronix.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0806031402450.6718@jikos.suse.cz>

On Tue, 3 Jun 2008, Jiri Kosina wrote:
> > Ahh yes - you are right , I've completely forget about that old post -
> > I've thought  that my post are usually getting fixed sooner :)
> > So yes - this is actually the same bug which is still not fixed within
> > the latest kernel - the machine is running qemu guest (which seems to
> > me now somehow also slower)
> 
> OK, so it looks like KVM could be wrongly enabling IRQs/preemption on the 
> resume path. The original bug-report is on 
> http://lkml.org/lkml/2008/4/7/130

sysdev_resume() is supposed to run with interrupts disabled, at least
it was that way when the timekeeping_resume code was written.

Thanks,
	tglx

  parent reply	other threads:[~2008-06-04 10:54 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-03  8:42 Zdenek Kabelac
2008-06-03 11:51 ` Jiri Kosina
     [not found]   ` <c4e36d110806030501g46363beev7126c8312aadd12e@mail.gmail.com>
2008-06-03 12:05     ` Jiri Kosina
2008-06-04  9:41       ` Avi Kivity
2008-06-04  9:57         ` Zdenek Kabelac
2008-06-04 10:34           ` Avi Kivity
2008-06-04 10:54       ` Thomas Gleixner [this message]
2008-06-04 11:13         ` Jiri Kosina
2008-06-04 11:16           ` Avi Kivity

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