lkml.org 
[lkml]   [2009]   [Feb]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] fix the interrupt loss problem on powerpc IPIC (2.6.23)
Date

On Feb 17, 2009, at 8:38 AM, Li Yang wrote:

> On Tue, Feb 17, 2009 at 10:12 PM, Kumar Gala <galak@kernel.crashing.org
> > wrote:
>>
>> On Feb 17, 2009, at 6:44 AM, <dayu@datangmobile.cn> <dayu@datangmobile.cn
>> >
>> wrote:
>>
>>> From: Da Yu <dayu@datangmobile.cn>
>>> Date: Tue, 17 Feb 2009 19:58:20 +0800
>>> Subject: [PATCH] fix the interrupt loss problem on powerpc IPIC
>>> (2.6.23)
>>>
>>> Signed-off-by: Da Yu <dayu@datangmobile.cn>
>>> ---
>>
>> Please provide a bit more description as to why this fixes the issue.
>
> The pending register is write 1 clear. If there are more than one
> external interrupts pending at the same time, acking the first
> interrupt will also clear other interrupt pending bits. That will
> cause loss of interrupt.
>
> - Leo

Thanks. That should be included in the commit message.

- k


\
 
 \ /
  Last update: 2009-02-18 12:23    [W:0.109 / U:0.200 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site