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. ;)
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