lkml.org 
[lkml]   [2001]   [Jul]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Doubt in interrupts
Swami wrote:
>
> Hi,
>
> Are there any interrupts which doesn't affect local_irq_count(cpu) or that
> doesn't enter do_IRQ()? (other than NMIs).
>
> Because I'm implementing my own locking routine and I'm getting
> interrupted during spin, but I check and found that in_interupt() returns
> zero.

All hardware interrupts go through do_IRQ. There are also CPU
exceptions and inter-processor interupts (SMP only) that have individual
handlers.

--

Brian Gerst
-
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 12:55    [W:0.030 / U:0.628 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site