lkml.org 
[lkml]   [2006]   [Jan]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.6.15-mm4 failure on power5

* Andrew Morton <akpm@osdl.org> wrote:

> > If I revert just that patch, mm4 boots fine. Its really not obvious to
> > me at all why that patch is breaking things though...
>
> Yes, that is strange. I do recall that if something accidentally
> enables interrupts too early in boot, ppc64 machines tend to go
> comatose. But if we'd been running that code under
> local_irq_disable(), down() would have spat a warning.

perhaps it was just luck it worked so far, and the bug could have had
worse incarnations that the current clear hang if a certain generic
codepath is touched in a perfectly valid way. Does CONFIG_DEBUG_MUTEXES
(or any of the other debugging options) make any noise?

Ingo
-
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: 2006-01-17 09:20    [W:0.789 / U:0.364 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site