From: "Mark Chambers" <markc@mail.com>
To: "zjznliang" <zjznliang_popo@163.com>,
"linuxppc-embedded" <linuxppc-embedded@ozlabs.org>
Subject: Re: interrupts limit??
Date: Tue, 15 Nov 2005 07:40:55 -0500 [thread overview]
Message-ID: <005301c5e9e1$d4a69ed0$0301a8c0@chuck2> (raw)
In-Reply-To: 20051115054109.CE1FD68763@ozlabs.org
> Hi ,linuxppc-embedded ！
>
> I have done the interrupt request by request_irq() on the Linux 2.4.25
,when typing the 'cat /proc/interrupts', I can see the information as follow
:
>
> /proc # cat interrupts
> CPU0
> 2: 3420 8xx SIU Edge wbga_interrupt
> 5: 0 8xx SIU Edge CPM cascade
> 15: 0 8xx SIU Edge tbint
> 16: 0 CPM Edge error
> 20: 801 CPM Edge SMC1
>
> and I can see the number of wbga_interrupt is increasing. But a few
minutes later ,the number is locked at 128000 as follow:
>
> /proc # cat interrupts
> CPU0
> 2: 128000 8xx SIU Edge wbga_interrupt
> 5: 0 8xx SIU Edge CPM cascade
> 15: 0 8xx SIU Edge tbint
> 16: 0 CPM Edge error
> 20: 833 CPM Edge SMC1
>
> and there is no wbga_interrupt any more....what's the matter with the
interrupt?why is 128000???
>
>
The problem is not /proc/interrupts, if that's what you're thinking. The
number can go much
higher. Believe what it's telling you: Your driver has a problem and has
stopped generating
interrupts.
Mark Chambers
prev parent reply other threads:[~2005-11-15 12:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-15 5:26 interrupts limit?? zjznliang
2005-11-15 12:40 ` Mark Chambers [this message]
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