Messages in this thread | | | Date | Thu, 10 Dec 2009 11:19:16 -0800 | From | Yinghai Lu <> | Subject | Re: Bisected regression (Was Re: current -git fails to boot on nehalem-ex) |
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Jens Axboe wrote: > On Thu, Dec 10 2009, Jens Axboe wrote: >>>>> [ 0.000000] Kernel panic - not syncing: Overlapping early reservations 12-f011 MP-table mpc to 0-fff BIOS data page >>>> mptable mpc is [12 - f011] >>>> >>>> what a BIOS ! >>>> >>>> can you check if it works with 2.6.32 + "acpi=off"? >> I'll try that. > > Yes, 2.6.32 boots fine with acpi=off passed. > >>> please check if this one could workaround it. >>> >>> diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c >>> index d17d482..f60acec 100644 >>> --- a/arch/x86/kernel/e820.c >>> +++ b/arch/x86/kernel/e820.c >>> @@ -732,7 +732,7 @@ struct early_res { >>> char overlap_ok; >>> }; >>> static struct early_res early_res[MAX_EARLY_RES] __initdata = { >>> - { 0, PAGE_SIZE, "BIOS data page" }, /* BIOS data page */ >>> + { 0, PAGE_SIZE, "BIOS data page", 1 }, /* BIOS data page */ >>> {} >>> }; >> And then this. Results in 10-15min. > > Doesn't work, it just complains about a different overlap: > > [ 0.000000] Kernel panic - not syncing: Overlapping early > reservations 12-f011 MP-table mpc to 6000-7fff TRAMPOLINE > [ 0.000000] > [ 0.000000] Pid: 0, comm: swapper Not tainted 2.6.32 #51 > [ 0.000000] Call Trace: > [ 0.000000] [<ffffffff813c709b>] panic+0xa0/0x16a > [ 0.000000] [<ffffffff8167d280>] ? > reserve_early_overlap_ok+0x2e/0x39 > [ 0.000000] [<ffffffff8167d24a>] ? > drop_overlaps_that_are_ok+0x117/0x11f > [ 0.000000] [<ffffffff8167d133>] drop_overlaps_that_are_ok+0x0/0x11f > [ 0.000000] [<ffffffff8167d2c6>] reserve_early+0x3b/0x3d > [ 0.000000] [<ffffffff81683248>] smp_scan_config+0xe7/0x10e > [ 0.000000] [<ffffffff816832a9>] default_find_smp_config+0x3a/0x60 > [ 0.000000] [<ffffffff8167b0be>] setup_arch+0x6ae/0xa88 > [ 0.000000] [<ffffffff816789ff>] start_kernel+0x82/0x412 > [ 0.000000] [<ffffffff81678289>] x86_64_start_reservations+0x99/0xb9 > [ 0.000000] [<ffffffff81678389>] x86_64_start_kernel+0xe0/0xf2 > >
that is funny. we may need to use find early for our TRAMPOLINE...?
otherwise your mptable is corrupted....
YH
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