lkml.org 
[lkml]   [2006]   [Mar]   [8]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
DateWed, 8 Mar 2006 14:28:57 +0300
FromIvan Kokshaysky <>
SubjectRe: Problem on Alpha with "convert to generic irq framework"
Well, the problem with the new interrupt code is that it does
local_irq_enable() before return from interrupt.

I don't know exactly why it breaks with the MILO PALcode. I'd guess
that if an interrupt occurs during 'call_pal rti' execution, some
critical PALcode data gets corrupted.

Fixed thus.

Ivan.

--- 2.6.16-rc5/arch/alpha/kernel/irq.c	Mon Mar  6 11:57:58 2006
+++ linux/arch/alpha/kernel/irq.c	Wed Mar  8 14:10:51 2006
@@ -153,6 +153,5 @@ handle_irq(int irq, struct pt_regs * reg
 	irq_enter();
 	local_irq_disable();
 	__do_IRQ(irq, regs);
-	local_irq_enable();
 	irq_exit();
 }
-
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: 2006-03-08 11:31    [from the cache]
©2003-2008