Instruction Cache Parity Error / 2.6.10 on MPC8540

[Kumar Gala]

Clemens,

I dont think there is really and debug to do with this.  If this is 
happening consistently it suppose to be an faulty part.  What rev of 
the silicon do you have (PVR, SVR)?

- kumar

On Jan 20, 2005, at 5:24 AM, Clemens Koller wrote:

> Hello,
>
> Well, I made good progress with Kernel 2.6.10 on my target (PM854,
>  Microsys) which is very similar to the MPC8540_ads configuration.
>  But now, after working for several minutes, I ran into the following
>  Oops:
>
> -----8<-------------------------------------------------------------
>  root at PM854:~/openssh-3.9p1$ Machine check in kernel mode.
>  Caused by (from MCSR=40000000): Instruction Cache Parity Error
>  Oops: machine check, sig: 7 [#1]
>  PREEMPT
>  NIP: C00054F8 LR: C01F8348 SP: C0263E70 REGS: c0232f50 TRAP: 0202    
> Not
> tainted
>  MSR: 00021000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00
>  TASK = c0233720[0] 'swapper' THREAD: c0262000
>  Last syscall: 120
>  GPR00: C01F8348 C0263E70 C0233720 C0233720 C054C400 00000000 00000351
> 00000000
>  GPR08: 00000000 00000003 C054C400 0000473A 0000AE53 00000000 10000700
> 007FFF93
>  GPR16: 00000000 00000001 007FFF00 C02B0000 C02C0000 C0233884 3B9ACA00
> C02B5C78
>  GPR24: 000000F4 C02B5C78 C0233720 C054C400 C02AED00 00000000 00000000
> C0263E90
>  NIP [c00054f8] __switch_to+0x14/0x9c
> LR [c01f8348] schedule+0x318/0x704
> Call trace:
>    [c01f8348] schedule+0x318/0x704
>   [c00026c8] resume_kernel+0x38/0x5c
>   [c00039f8] cpu_idle+0x28/0x40
>   [c0001afc] rest_init+0x28/0x38
>   [c0264804] start_kernel+0x16c/0x1a4
>   [c0000364] skpinv+0x294/0x2d0
> Kernel panic - not syncing: Attempted to kill the idle task!
>    <0>Rebooting in 180 seconds..
>  -----8<-------------------------------------------------------------
>
> Does this look familiar to anybody? Any ideas where to start
>  debugging?
>
> Best greets,
>
> Clemens Koller
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