Milan Broz schrieb:
Rafael J. Wysocki napsal(a):
On Sunday, 11 March 2007 19:08, Thomas Meyer wrote:
Suspend to disk doesn't work on my laptop.
The suspend seems to hang while enabling the non-boot cpus again.
with platform = "test" and state = "disk" i get this:
Hi,
I see the same problem - 2.6.21-rc3 with NO_HZ set (tickless),
short printk trace
enable_nonboot_cpus
_cpu_up
raw_notifier_callchain (CPU_UP_PREPARE)
...
update_sched_domains
detach_destroy_domains
[waits here] --> synchronize_sched (==synchronize_rcu)
Maybe this helps:
Mar 11 20:03:56 [kernel] PM: Removing info for No Bus:msr1
Mar 11 20:03:56 [kernel] CPU1 is down
Mar 11 20:03:56 [kernel] swsusp debug: Waiting for 5 seconds.
Mar 11 20:03:56 [kernel] Enabling non-boot CPUs ...
Mar 11 20:03:56 [kernel] _cpu_up: before notifier CPU_UP_PREPARE.
Mar 11 20:03:56 [kernel] migration_call: Hi!
Mar 11 20:03:56 [kernel] rcu_cpu_notify: Hi!
Mar 11 20:03:56 [kernel] timer_cpu_notify: Hi!
Mar 11 20:03:56 [kernel] hrtimer_cpu_notify: Hi!
Mar 11 20:03:56 [kernel] cpu_callback: Hi!
Mar 11 20:03:56 [kernel] workqueue_cpu_callback: Hi!
Mar 11 20:03:56 [kernel] topology_cpu_callback: Hi!
Guess what? Hang!
Mar 11 20:03:56 [kernel] _cpu_up: after notifier CPU_UP_PREPARE.
Mar 11 20:03:56 [kernel] SMP alternatives: switching to SMP code
Mar 11 20:03:56 [kernel] Booting processor 1/1 eip 3000
Mar 11 20:03:56 [kernel] CPU 1 irqstacks, hard=c0388000 soft=c0386000
Mar 11 20:03:56 [kernel] Initializing CPU#1
I use NO_HZ, too. Will try without it.
With kind regards
thomas
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