Messages in this thread | | | Date | Tue, 22 Nov 2005 19:47:39 +0100 | From | Pavel Machek <> | Subject | Re: Resume from swsusp stopped working with 2.6.14 and 2.6.15-rc1 |
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Hi!
> > > > > >> Bjorn, does it help if you change TIMEOUT in kernel/power/process.c to 30 * HZ? > > > > > > > > > > > > Funny, I thought that 6 seconds is way too much. Bjorn, please let us > > > > > > know if 30 seconds timeout helps. > > > > > > > > > > It does. > > > > > > > > Ouch, yes, that's clear. It is stopping tasks during *resume*... So I > > > > guess it gets wrong timing by design. Question is what to do with > > > > that. Could we make keyboard driver pause the boot until it is done > > > > resetting hardware? Or we can increase the timeout... would 10 seconds > > > > be enough? > > > > > > Well, I think 10 seconds when suspending is a nice and resonable > > > number. For resume though I think we should wait much longer, maybe > > > even indefinitely - the only thing that timeout achieves is makes > > > people fsck because the system can't recover from that state. > > > > I see your point, but it does not seem we need that changes this far. Your > > patch is better, because we *could* hit that during suspend, just after > > keyboard hotplug... right? And it will make resume faster for affected people. > > I disagree here. While my patch is a right thing to do (and as you > know is already merged in mainline) it is not "better". Swsusp should > not rely on the other subsystems being "nice" to it. Even with my > patch there still could be moments when some thread is not suspended > in 6 seconds when resuming causing unneeded resume failure and > subsequent fsck. > > Please consider merging the patch below.
Well, I do not think this problem will surface again. It is first failure in pretty long time. If it happens again, I'll take your patch. Pavel -- Thanks, Sharp! - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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