lkml.org 
[lkml]   [2008]   [May]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Oops with PREEMPT-RT on 2.6.25.4
Rune Torgersen wrote:
> Scott Wood wrote:
>> You're recursively entering lock_timer_base, which does a
>> spin_lock_irqsave(). Either interrupts are enabled when they should
>> not be, or an interrupt was supposed to be threaded that isn't.
>
> Sort of figured. How do I figure out which one, and how to fix it?

Almost certainly the latter. Is the disk interrupt shared with any
other interrupts, that are marked IRQF_NODELAY? The -rt patch doesn't
seem to handle mixing the two well.

Oh, and just to be sure: you do have CONFIG_PREEMPT_RT turned on, and
not just CONFIG_PREEMPT, right? The non-preempt-rt versions in the -rt
patch don't look like they disable interrupts, though I may just be
getting lost in a sea of underscores and ifdefs.

-Scott



\
 
 \ /
  Last update: 2008-05-19 23:13    [from the cache]
©2003-2011 Jasper Spaans