On Sunday, 11 March 2007 20:16, Thomas Meyer wrote: > 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!
Hm, you may be hitting the problem described in this thread: http://lkml.org/lkml/2007/3/6/364 . Can you please apply the patch at http://lkml.org/lkml/2007/3/7/255 and see if that helps? Rafael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
