Subject: Re: [[email-masked]: 2.6.23-rc6-mm1 -- powerpc pSeries_log_error panic in rtas_call/early_enable_eeh]

From: [email-masked] (Linas Vepstas)
Date: Mon, 24 Sep 2007 12:21:49 -0500

I just got back from vacation.

I'll give this a whirl shortly.

--linas

On Sun, Sep 23, 2007 at 11:17:40AM -0500, Anton Blanchard wrote:
> 
> Hi Linas,
> 
> Looks like EEH could be involved :)
> 
> Anton
> 
> ----- Forwarded message from Andy Whitcroft <[email-masked]> -----
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> From: Andy Whitcroft <[email-masked]>
> To: Andrew Morton <[email-masked]>
> Subject: 2.6.23-rc6-mm1 -- powerpc pSeries_log_error panic in
> 	rtas_call/early_enable_eeh
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> Seeing the following panic booting an old powerpc LPAR:
> 
> Unable to handle kernel paging request for data at address 0x00000000
> Faulting instruction address: 0xc000000000047b48
> cpu 0x0: Vector: 300 (Data Access) at [c0000000006a3750]
>     pc: c000000000047b48: .pSeries_log_error+0x364/0x420
>     lr: c000000000047acc: .pSeries_log_error+0x2e8/0x420
>     sp: c0000000006a39d0
>    msr: 8000000000001032
>    dar: 0
>  dsisr: 42000000
>   current = 0xc0000000005acab0
>   paca    = 0xc0000000005ad700
>     pid   = 0, comm = swapper
> enter ? for help
> [c0000000006a3af0] c000000000021164 .rtas_call+0x200/0x250
> [c0000000006a3ba0] c000000000049d50 .early_enable_eeh+0x168/0x360
> [c0000000006a3c70] c00000000002f674 .traverse_pci_devices+0x8c/0x138
> [c0000000006a3d10] c000000000560ce8 .eeh_init+0x1a8/0x200
> [c0000000006a3db0] c00000000055fb70 .pSeries_setup_arch+0x128/0x234
> [c0000000006a3e40] c00000000054f830 .setup_arch+0x214/0x24c
> [c0000000006a3ee0] c000000000546a38 .start_kernel+0xd4/0x3e4
> [c0000000006a3f90] c00000000045adc4 .start_here_common+0x54/0x58
> 0:mon>
> 
> This machine is:
> 
> # cat /proc/cpuinfo
> processor       : 0
> cpu             : POWER4+ (gq)
> clock           : 1703.965296MHz
> revision        : 19.0
> 
> [...]
> machine         : CHRP IBM,7040-681
> 
> -apw
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> ----- End forwarded message -----