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Re: CoreHI interrupts on Malta

To: Jun Sun <jsun@mvista.com>
Subject: Re: CoreHI interrupts on Malta
From: Carsten Langgaard <carstenl@mips.com>
Date: Mon, 22 Jul 2002 10:54:10 +0200
Cc: linux-mips@oss.sgi.com
References: <3D3894CD.5000609@mvista.com>
Sender: owner-linux-mips@oss.sgi.com
Jun Sun wrote:

> After shuffling some lines of printk(), etc, I suddenly get the following
> panics.  Anybody knows what they are?  They seems to be recursive, BTW.
>
> If the interrupts really shouldn't happen, we probably should just disable 
> IP5.
>

This interrupt comes from the Galileo system controller, when an error happens 
on
the bus.
Your are probably accesses an address out of range (beyond your physical memory
area).

This indicate a fatal error in the kernel, ignoring it wouldn't be wise.


>
> Jun
>
> Loading modules:
> modprobe: Can't open dependencies file /lib/modules/2.4.19-rc1/modules.dep 
> (No )
> CoreHI interrupt, shouldn't happen, so we die here!!!
> epc   : 80108a00
> Status: 1000fc03
> Cause : 00802000
> badVaddr : 00000000
> GT_INTRCAUSE = 43e00009
> GT_CPU_ERR_ADDR = 0204000028
> CoreHi interrupt in malta_int.c::corehi_irqdispatch, line 285:
> $0 : 00000000 7fff62e8 00000000 7fff63e8 7fff6308 83ffff28 00000000 83f3c364
> $8 : 00000000 00000000 00000000 00000000 00000000 7fff62c8 00000000 00000000
> $16: 7fff63c0 00000018 00000000 10013a88 00000000 ffffffff 00000000 10015188
> $24: 00000000 00000018                   83ffe000 83ffff30 00000008 801089e8
> Hi : 00000000
> Lo : 00000020
> epc  : 80108a00    Not tainted
> Status: 1000fc03
> Cause : 00802000
> Process rcS (pid: 32, stackpage=83ffe000)
> Stack: ffffffff 7fff6498 7fff6518 00000000 00000001 00000000 00000000 802c0000
>         00001062 00000000 00000018 7fff62c8 7fff62e8 00000000 0000fc00 
> 2ad44404
>         00000000 00000000 00000000 7fff64a0 00000000 00000000 00000000 
> 00000020
>         00000000 10013a88 00000000 ffffffff 00000000 10015188 00000000 
> 2acb0870
>         00000010 00000000 2ae22db0 7fff62b0 00000008 2acaec84 00000020 
> 00000000
>         2acb0884 ...
> Call Trace:
> Code: afa80034  00021023  afa20018 <afa20020> 40086000  00000000  35080001  
> 390
> CoreHI interrupt, shouldn't happen, so we die here!!!
> ....

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