linux/arch/x86_64
Ingo Molnar d04f41e353 [PATCH] CPU hotplug: call check_tsc_sync_source() with irqs off
check_tsc_sync_source() depends on being called with irqs disabled (it
checks whether the TSC is coherent across two specific CPUs). This is
incidentally true during bootup, but not during cpu hotplug __cpu_up().
This got found via smp_processor_id() debugging.

disable irqs explicitly and remove the unconditional enabling of
interrupts. Add touch_nmi_watchdog() to the cpu_online_map busy loop.

this bug is present both on i386 and on x86_64.

Reported-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-07 10:07:24 -08:00
..
boot [PATCH] x86-64: shorten the x86_64 boot setup GDT to what the comment says 2006-11-14 16:57:46 +01:00
crypto [CRYPTO] api: Get rid of flags argument to setkey 2006-09-21 11:41:02 +10:00
ia32 Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-02-14 09:46:06 -08:00
kernel [PATCH] CPU hotplug: call check_tsc_sync_source() with irqs off 2007-03-07 10:07:24 -08:00
lib Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq 2007-02-26 14:17:50 -08:00
mm Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-02-14 09:46:06 -08:00
oprofile [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
pci [PATCH] mmconfig: fix unreachable_devices() 2007-02-13 13:26:20 +01:00
defconfig [PATCH] x86-64: Update defconfig 2007-02-13 13:26:19 +01:00
Kconfig [PATCH] time: x86_64: re-enable vsyscall support for x86_64 2007-02-16 08:14:00 -08:00
Kconfig.debug [PATCH] lockdep: irqtrace subsystem, x86_64 support 2006-07-03 15:27:03 -07:00
Makefile Remove stack unwinder for now 2006-12-15 08:47:51 -08:00