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    SubjectRe: 2.6.24-rc3-mm1 - brick my Dell Latitude D820
    On Tue, 27 Nov 2007 02:16:26 -0500 Valdis.Kletnieks@vt.edu wrote:

    > On Tue, 20 Nov 2007 20:45:25 PST, Andrew Morton said:
    > >
    > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.24-rc3/2.6.24-rc3-mm1/
    >
    > Finally got both time and motivation to at least start a bisect..
    >
    > 2.6.23-mm1 works on my D820 (x86_64 kernel, Core2 Duo T7200)
    >
    > 24-rc3-mm1 (plus 3 patches from hotfixes/) bricks *instantly* at boot - grub
    > prints its 3 or 4 lines saying what it loaded, the screen clears, and *blam*
    > dead. No serial console output, no pair of penguins on the monitor, no
    > netconsole, no earlyprintk=vga output, no alt-sysrq, only thing that does
    > *anything* is "hold the power button for 5 seconds". Whatever it is, it
    > happens *very* early (before we get as far as the 'Linux version 2.6.mumble'
    > banner), and happens *hard*.
    >
    > I've bisected it down this far:
    >
    > git-ipwireless_cs.patch GOOD
    > git-x86.patch
    > git-x86-fixup.patch
    > git-x86-thread_order-borkage.patch
    > git-x86-thread_order-borkage-fix.patch
    > git-x86-identify_cpu-fix.patch
    > git-x86-memory_add_physaddr_to_nid-export-for-acpi-memhotplugko.patch
    > git-x86-memory_add_physaddr_to_nid-export-for-acpi-memhotplugko-checkpatch-fixes.patch
    > git-x86-inlining-borkage.patch
    > x86_64-set-cpu_index-to-nr_cpus-instead-of-0.patch
    > x86_64-make-sparsemem-vmemmap-the-default-memory-model-v2.patch BAD
    >
    > Anybody got any good debugging ideas before I go through and do the final
    > 3 or 4 bisects? I suspect I'll need them once I find the offending patch
    > to tell *why* said patch dies on my box - I've seen enough traffic regarding
    > -rc3-mm1 dying *later* to know it's probably a subtle issue and not one
    > that will be obvious once I finger a specific patch. For example, it's
    > probably not the IO-APIC panic that people are seeing, because their kernels
    > live long enough to panic. ;)
    >

    You could try http://userweb.kernel.org/~akpm/mmotm/ - we might have already
    fixed it.

    Otherwise, please proceed to work out which diff I need to drop and hope like
    hell that it isn't git-x86..
    -
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