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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2007-12-13 13:20:32 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-12-14 10:32:00 -0800 |
| commit | fc79ad5a2c4360a2ecc028a44cdffaa1634d7a14 (patch) | |
| tree | df5550eebed78cc45b02eac50f24bf973ecdc1e9 | |
| parent | 830eed76e068db80b68e48d47d2e65ae77d164ee (diff) | |
| download | lwn-fc79ad5a2c4360a2ecc028a44cdffaa1634d7a14.tar.gz lwn-fc79ad5a2c4360a2ecc028a44cdffaa1634d7a14.zip | |
Revert "Fix SMP poweroff hangs"
This reverts the following changeset in 2.6.22.10 that caused a lot of
reported problems.
From: Mark Lord <lkml@rtr.ca>
commit 4047727e5ae33f9b8d2b7766d1994ea6e5ec2991 from upstream
We need to disable all CPUs other than the boot CPU (usually 0) before
attempting to power-off modern SMP machines. This fixes the
hang-on-poweroff issue on my MythTV SMP box, and also on Thomas Gleixner's
new toybox.
Signed-off-by: Mark Lord <mlord@pobox.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There still is a remaining shutdown problem in 2.6.22 with old APM based
systems, but this fix is not the correct one
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | kernel/sys.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index afd9b93069f9..28e8364ad68a 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -31,7 +31,6 @@ #include <linux/cn_proc.h> #include <linux/getcpu.h> #include <linux/task_io_accounting_ops.h> -#include <linux/cpu.h> #include <linux/compat.h> #include <linux/syscalls.h> @@ -866,7 +865,6 @@ EXPORT_SYMBOL_GPL(kernel_halt); void kernel_power_off(void) { kernel_shutdown_prepare(SYSTEM_POWER_OFF); - disable_nonboot_cpus(); printk(KERN_EMERG "Power down.\n"); machine_power_off(); } |