* interrupts limit??
@ 2005-11-15 5:26 zjznliang
2005-11-15 12:40 ` Mark Chambers
0 siblings, 1 reply; 2+ messages in thread
From: zjznliang @ 2005-11-15 5:26 UTC (permalink / raw)
To: linuxppc-embedded
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: interrupts limit??
2005-11-15 5:26 interrupts limit?? zjznliang
@ 2005-11-15 12:40 ` Mark Chambers
0 siblings, 0 replies; 2+ messages in thread
From: Mark Chambers @ 2005-11-15 12:40 UTC (permalink / raw)
To: zjznliang, linuxppc-embedded
> 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
^ permalink raw reply [flat|nested] 2+ messages in thread
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2005-11-15 5:26 interrupts limit?? zjznliang
2005-11-15 12:40 ` Mark Chambers
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