The patch titled acpi: fix "buggy BIOS check" when CPUs are hot removed has been added to the -mm tree. Its filename is acpi-fix-buggy-bios-check-when-cpus-are-hot-removed.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: acpi: fix "buggy BIOS check" when CPUs are hot removed From: Alok Kataria <akataria@xxxxxxxxxx> Fixes a BUG in ACPI hotplugging. processor_device_array[pr->id] needs to be set to NULL when removing a CPU. Else the "buggy BIOS check" in acpi_processor_start mistakenly fires when a CPU is removed from the system and then later re-added. Signed-off-by: Alok N Kataria <akataria@xxxxxxxxxx> Signed-off-by: Dan Arai <arai@xxxxxxxxxx> Cc: Len Brown <lenb@xxxxxxxxxx> Cc: <stable@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/acpi/processor_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN drivers/acpi/processor_core.c~acpi-fix-buggy-bios-check-when-cpus-are-hot-removed drivers/acpi/processor_core.c --- a/drivers/acpi/processor_core.c~acpi-fix-buggy-bios-check-when-cpus-are-hot-removed +++ a/drivers/acpi/processor_core.c @@ -822,7 +822,7 @@ static int acpi_processor_remove(struct } processors[pr->id] = NULL; - + processor_device_array[pr->id] = NULL; kfree(pr); return 0; _ Patches currently in -mm which might be from akataria@xxxxxxxxxx are acpi-fix-buggy-bios-check-when-cpus-are-hot-removed.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html