Messages in this thread | | | From | Kumar Gala <> | Subject | Re: [PATCH] fix the interrupt loss problem on powerpc IPIC (2.6.23) | Date | Tue, 17 Feb 2009 08:43:03 -0600 |
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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
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