Re: ipr boot failure caused by MSI (2.6.30-rc1+)

Brian King
2009-05-21T18:47:14Z

cc'ing linuxppc-dev...

-Brian

James Bottomley wrote:
> Kernels after 2.6.30-rc1 stopped booting on my powerstation. The ipr
> just times out and refuses to probe devices. If I let it drop into the
> initramfs system, this is what the interrupts shows:
>
> (initramfs) cat /proc/interrupts
> CPU0 CPU1 CPU2 CPU3
> 16: 20 10 13 11 MPIC Level pata_amd
> 20: 0 0 0 0 MPIC Level ohci_hcd:usb1, ohci_hcd:usb2
> 21: 0 0 0 0 MPIC-U3MSI Edge ipr
> 68: 37 37 48 37 MPIC Edge serial
> 251: 10 71 69 72 MPIC Edge ipi call function
> 252: 1555 1779 1372 1155 MPIC Edge ipi reschedule
> 253: 0 0 0 0 MPIC Edge ipi call function single
> 254: 0 0 0 0 MPIC Edge ipi debugger
> BAD: 416
>
> So you see the IPR is the only device not receiving them.
>
> I can fix the boot hang by reverting
>
> commit 5a9ef25b14d39b8413364df12cb8d9bb7a673a32
> Author: Wayne Boyer <wayneb@linux.vnet.ibm.com>
> Date: Fri Jan 23 09:17:35 2009 -0800
>
> [SCSI] ipr: add MSI support
>
> The system in question is:
>
> SYSTEM INFORMATION
> Processor = PowerPC,970MP @ 2500 MHz
> I/O Bridge = U4 (4.4)
> SMP Size = 4 (#0 #1 #2 #3)
> Boot-Date = 2009-04-21 17:13:36
> Memory = 2 GB of RAM @ 666 MHz
> Board Type = Bimini (7047191/0000000/1)
> MFG Date = 1608
> Part No. = 10N8748
> FRU No. = 10N7182
> FRU Serial = YL30W8106038
> UUID = 00000000000000000000000000000000
> Flashside = 1 (temporary)
> Version = HEAD
> Build Date = 12-04-2008 16:13
>
> James
>
>
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--
Brian King
Linux on Power Virtualization
IBM Linux Technology Center