lkml.org 
[lkml]   [2002]   [May]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] Hotplug CPU prep III: daemonize idle tasks
Date
In message <AAEGIMDAKGCBHLBAACGBAELNCHAA.balbir.singh@wipro.com> you write:
> I tried a version of __daemonize in 2.4. It panics in
> schedule()
>
> prepare_to_switch();
> {
> struct mm_struct *mm = next->mm;
> struct mm_struct *oldmm = prev->active_mm;
> if (!mm) {
> if (next->active_mm) BUG();
>
> I got hit by the BUG() in 2.4, I think prepare_to_switch has
> moved to specific archs in 2.5. A quick look showed that
> this issue no longer exists in 2.5.

Uhhh... there are many other problems if you are trying to do this on
a "live" process. idle process creation is a special case because it
has never been run yet.

This is not a generic "daemonize this task" mechanism!
Rusty.
--
Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
-
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/

\
 
 \ /
  Last update: 2005-03-22 13:26    [W:0.042 / U:0.844 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site