Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [Regression] 2.6.24-git3: Major annoyance during suspend/hibernation on x86-64 (bisected) | Date | Mon, 28 Jan 2008 12:31:50 +0100 |
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On Monday, 28 of January 2008, Steven Rostedt wrote: > Rafael J. Wysocki wrote: > > > No, this isn't the WARN_ON(). > > > >> this does have the feel of being scheduling related, but are you > >> absolutely sure about the precise identity of the patch? > > > > Actually, not quite. That's why I have verified it and found that another > > patch is really responsible for the issue, namely: > > > > commit 82a1fcb90287052aabfa235e7ffc693ea003fe69 > > Author: Ingo Molnar <mingo@elte.hu> > > Date: Fri Jan 25 21:08:02 2008 +0100 > > > > softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks > > Are you getting a bunch of prints from the softlockup detector in dmesg?
No, I don't. In fact, I don't get _any_ messages from it whatsoever.
> I wonder if the detector can detect a long timeout caused by suspend and > resume and if not is triggering false positives?
I'm not sure, but the code is supposed to be suspend-aware, IIRC. However, I'm seeing a similar symptom on poweroff on an SMP x86-64 box, so it may be more directly related to the CPU hotplug. I'll try to verify that.
Thanks, Rafael
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