[haiku-bugs] Re: [Haiku] #4555: PANIC: Fatal Exception "NMI Interrupt" has occured
- From: "mmlr" <trac@xxxxxxxxxxxx>
- Date: Tue, 08 Nov 2011 00:31:29 -0000
#4555: PANIC: Fatal Exception "NMI Interrupt" has occured
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Reporter: MasterNetra | Owner: mmlr
Type: bug | Status: assigned
Priority: normal | Milestone: R1
Component: System/Kernel | Version: R1/alpha1
Resolution: | Keywords: NMI
Blocked By: | Blocking: 8097
Has a Patch: 0 | Platform: x86
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Comment (by mmlr):
Replying to [comment:9 Duggan]:
> Hey mmlr, I attached a small snipet of my syslog confirming that it's
PCI related. If you want the entire syslog let me know and I'll try to get
a clean one up soon.
That's fine, the attached one is great, no need to dig further for now.
I've browsed through the PCI specs to see if there was anything obvious
and saw that the parity error handling might be to blame, as that one can
be configured to trigger an SERR assert that'd lead to the NMIs. Though
even if that was the case we'd still need to investigate/fix the reason
for the parity error in the first place. Also SERR may be asserted in
other situations, like incompatible transactions (as in lower bit width
busses that can't complete input addressing) or other errors. We might not
account for things like that, but I haven't yet looked into our code to
check.
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Ticket URL: <http://dev.haiku-os.org/ticket/4555#comment:10>
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