linux/arch/x86_64
Rafael J. Wysocki 436ce71638 [PATCH] Revert "swsusp: disable nonboot CPUs before entering platform suspend"
This reverts commit 94985134b7 and
insteads removes the WARN_ON() that caused that commit in the first
place.

The problem is that we call disable_nonboot_cpus() in swsusp before
powering down the system in order to avoid triggering the WARN_ON()
in arch/x86_64/kernel/acpi/sleep.c:init_low_mapping() and this doesn't
work well on Thomas' system.

So instead, remove the WARN_ON() in arch/x86_64/kernel/acpi/sleep.c:
init_low_mapping(), which triggers every time during the suspend to disk
in the platform mode, as the potential problem it is related to doesn't
seem to occur in practice.

[ I think we might want to disallow the case of multiple users of that
  mm, or something.  Normally, playing with the current process page
  tables on the current CPU should be fine as long as we don't have
  other threads using those tables at the same time..

  Anyway, not pretty, but better than the warning or the lockup - Linus ]

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-27 09:20:03 -07:00
..
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
ia32 [PATCH] x86-64: wire up compat sched_rr_get_interval(2) 2007-03-16 21:07:36 +01:00
kernel [PATCH] Revert "swsusp: disable nonboot CPUs before entering platform suspend" 2007-03-27 09:20:03 -07:00
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
pci [PATCH] mmconfig: fix unreachable_devices() 2007-02-13 13:26:20 +01:00
Kconfig [PATCH] time: x86_64: re-enable vsyscall support for x86_64 2007-02-16 08:14:00 -08:00
Kconfig.debug
Makefile Remove stack unwinder for now 2006-12-15 08:47:51 -08:00
defconfig [PATCH] x86-64: Update defconfig 2007-03-16 21:07:35 +01:00