Re: "exception Emask: 0x42" errors with 2.6.22.x and SATA drives

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On Fri, 24 Aug 2007 14:39:10 +0100
"Dermot Bradley" <[email protected]> wrote:

> I've just built a new machine using a ASUS M2A-VM boardboard (ATI SB600
> chipset), AMD X2 3800+ processor, and 2 Western Digital 2.5" 80Gb drives
> running in RAID-1 using MD. I've had these problems with both 2.6.22.1
> and now 2.6.22.5 kernels.
> 
> I'm getting the following errors on occasion:
> 
> Aug 24 13:19:22 playpbx kernel: APIC error on CPU0: 00(40)
> Aug 24 13:19:33 playpbx kernel: APIC error on CPU0: 40(40)

This is not good.

> Aug 24 13:55:31 playpbx kernel: ata3.00: exception Emask 0x42 SAct
> 0x7fc77 SErr0x800 action 0x6 frozen
> Aug 24 13:55:31 playpbx kernel: ata3.00: (spurious completions during
> NCQ issue=0x0 SAct=0x7fc77 FIS=004040a1:00000008)

Probably not connected - your drive seems to be talking rubbish

Neither are good, the latter is probably a drive firmware problem and the
kernel will give up using NCQ with it if it keeps doing that, which
should be just fine.
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