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    SubjectRe: 2.6.18-rc6-mm1 2.6.18-rc5-mm1 Kernel Panic on X60s
    Andrew Morton <> writes:

    > OK, thanks.
    > I don't think this necessarily tells us where the bug lies. It could be
    > some pre-existing thing in MSI, or it could be added by Bryce's changes.
    > Or by Eric's. Or, of course, by
    > genirq-convert-the-i386-architecture-to-irq-chips.patch.
    > There doesn't seem to be a lot of movement on this and we want to get the
    > x86 genirq conversion into 2.6.19. Could be that we end up having to merge
    > known-buggy stuff into mainline and crash enough computers to irritate
    > someone into fixing it. Rather sad.

    My planning to take a good hard look at it, in a bit.
    Since it was failing in do_IRQ with a page fault something is obviously being
    left as NULL, so this should be quite easy to track down once we look

    I'm very suspicious that this failure started happening in just
    the last two -mm releases. That seems to implicate Bryce's work,
    but if it is just about enabling MSI he should not have touched
    the code path where the failure happened.

    Also I noticed a little while ago that I didn't quite take the
    msi code far enough. In particular the generic code still does some
    apic accesses which doesn't make any sense at all for architectures
    like ppc.

    I'm currently sitting on a queue of 30 about 99% complete struct pid
    conversions, that I just need to review one last time and then send
    out to get merged, hopefully I can get the rest of these patches sent
    out in the next day or two, so I can focus on irq issues for a bit.

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      Last update: 2006-09-11 19:59    [W:0.020 / U:49.244 seconds]
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