lkml.org 
[lkml]   [2008]   [Oct]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Long delays and keystrokes required - related to disk encryption?
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


\
 
 \ /
  Last update: 2008-10-31 12:43    [from the cache]
©2003-2011 Jasper Spaans