Messages in this thread | | | Date | Fri, 31 Oct 2008 12:40:25 +0100 | From | Yves-Alexis Perez <> | Subject | Re: Long delays and keystrokes required - related to disk encryption? |
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On Fri, Oct 31, 2008 at 08:57:05AM +0100, Pavel Machek wrote: > On Fri 2008-10-31 01:04:25, Frans Pop wrote: > > On Thursday 30 October 2008, Pavel Machek wrote: > > > Try "nohz=off highres=off"... > > > > Oh, I have no doubt that that could help. The point is though that I don't > > think I should have to use such parameters. > > > > I think we've already established that disabling hires timers helps, so, > > unless this will provide some additional tracing info to the developers, > > I think I'll skip this suggestion. > > > > 2.6 28-rc2 is a regression against 2.6.27 because hires is broken. I don't > > think I'll want to permanently add random boot parameters to work around > > that regression. > > Well, you could probably narrow it down to "nohz=off", because I > believe it is probably nohz and not highres that makes problems. > > Anyway, if this does not get fixed soon, you should cc rjw so this > gets on the regression list.
It already is on the regression list, see:
http://bugzilla.kernel.org/show_bug.cgi?id=11826 http://bugzilla.kernel.org/show_bug.cgi?id=11893 > > You can probably debug this with git bisect if no other ideas > surface...
Bisect has already been done, the offending commit is:
commit dc4304f7deee29fcdf6a2b62f7146ea7f505fd42 Author: Arjan van de Ven <arjan@linux.intel.com> Date: Mon Oct 13 10:32:15 2008 -0400 rangetimers: fix the bug reported by Ingo for real
And workarounding it with a return; early in the function worked. But that's not really a solution.
Cheers, -- Yves-Alexis
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