From: Thomas Gleixner <tglx@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Adrian Bunk <bunk@stusta.de>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Michal Piotrowski <michal.k.k.piotrowski@gmail.com>,
Emil Karlson <jkarlson@cc.hut.fi>,
"Michael S. Tsirkin" <mst@mellanox.co.il>,
Ingo Molnar <mingo@elte.hu>, Soeren Sonnenburg <kernel@nn7.de>,
Len Brown <lenb@kernel.org>
Subject: Re: [5/6] 2.6.21-rc2: known regressions
Date: Tue, 06 Mar 2007 01:25:53 +0100 [thread overview]
Message-ID: <1173140753.24738.246.camel@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.64.0703051542030.3998@woody.linux-foundation.org>
On Mon, 2007-03-05 at 15:45 -0800, Linus Torvalds wrote:
>
> On Tue, 6 Mar 2007, Thomas Gleixner wrote:
> > >
> > > Subject : macbook pro suspend to ram broken (clockevents)
> > > References : http://lkml.org/lkml/2007/3/4/110
> > > Submitter : Soeren Sonnenburg <kernel@nn7.de>
> > > Caused-By : Thomas Gleixner <tglx@linutronix.de>
> > > commit e9e2cdb412412326c4827fc78ba27f410d837e6e
> > > Status : unknown
> >
> > I can reproduce this on my dual core VAIO. There are some issues:
>
> Yeah, I think I can too, on my dual-core Mac Mini.
>
> I'm not done with my bisection, but e9e2cdb4 is among the 28 commits left,
> so I'm pretty sure I'm hitting the same bug. I'll do a few more bootups to
> be 100% sure.
I just got the resume fix cleaned up. The suspend / resume thing was
dropped unintentionally during the -mm code reshuffling.
It still needs the broadcast fix though.
Does this make the problem go away ?
tglx
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 12b3efe..5567745 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -284,6 +284,42 @@ void tick_shutdown_broadcast(unsigned int *cpup)
spin_unlock_irqrestore(&tick_broadcast_lock, flags);
}
+void tick_suspend_broadcast(void)
+{
+ struct clock_event_device *bc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tick_broadcast_lock, flags);
+
+ bc = tick_broadcast_device.evtdev;
+ if (bc && tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC)
+ clockevents_set_mode(bc, CLOCK_EVT_MODE_SHUTDOWN);
+
+ spin_unlock_irqrestore(&tick_broadcast_lock, flags);
+}
+
+int tick_resume_broadcast(void)
+{
+ struct clock_event_device *bc;
+ unsigned long flags;
+ int broadcast = 0;
+
+ spin_lock_irqsave(&tick_broadcast_lock, flags);
+
+ bc = tick_broadcast_device.evtdev;
+ if (bc) {
+ if (tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC &&
+ !cpus_empty(tick_broadcast_mask))
+ tick_broadcast_start_periodic(bc);
+
+ broadcast = cpu_isset(smp_processor_id(), tick_broadcast_mask);
+ }
+ spin_unlock_irqrestore(&tick_broadcast_lock, flags);
+
+ return broadcast;
+}
+
+
#ifdef CONFIG_TICK_ONESHOT
static cpumask_t tick_broadcast_oneshot_mask;
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 0986a2b..43ba1bd 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -298,6 +298,28 @@ static void tick_shutdown(unsigned int *cpup)
spin_unlock_irqrestore(&tick_device_lock, flags);
}
+static void tick_suspend_periodic(void)
+{
+ struct tick_device *td = &__get_cpu_var(tick_cpu_device);
+ unsigned long flags;
+
+ spin_lock_irqsave(&tick_device_lock, flags);
+ if (td->mode == TICKDEV_MODE_PERIODIC)
+ clockevents_set_mode(td->evtdev, CLOCK_EVT_MODE_SHUTDOWN);
+ spin_unlock_irqrestore(&tick_device_lock, flags);
+}
+
+static void tick_resume_periodic(void)
+{
+ struct tick_device *td = &__get_cpu_var(tick_cpu_device);
+ unsigned long flags;
+
+ spin_lock_irqsave(&tick_device_lock, flags);
+ if (td->mode == TICKDEV_MODE_PERIODIC)
+ tick_setup_periodic(td->evtdev, 0);
+ spin_unlock_irqrestore(&tick_device_lock, flags);
+}
+
/*
* Notification about clock event devices
*/
@@ -325,6 +347,16 @@ static int tick_notify(struct notifier_block *nb, unsigned long reason,
tick_shutdown(dev);
break;
+ case CLOCK_EVT_NOTIFY_SUSPEND:
+ tick_suspend_periodic();
+ tick_suspend_broadcast();
+ break;
+
+ case CLOCK_EVT_NOTIFY_RESUME:
+ if (!tick_resume_broadcast())
+ tick_resume_periodic();
+ break;
+
default:
break;
}
diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h
index 54861a0..75890ef 100644
--- a/kernel/time/tick-internal.h
+++ b/kernel/time/tick-internal.h
@@ -67,6 +67,8 @@ extern int tick_check_broadcast_device(struct clock_event_device *dev);
extern int tick_is_broadcast_device(struct clock_event_device *dev);
extern void tick_broadcast_on_off(unsigned long reason, int *oncpu);
extern void tick_shutdown_broadcast(unsigned int *cpup);
+extern void tick_suspend_broadcast(void);
+extern int tick_resume_broadcast(void);
extern void
tick_set_periodic_handler(struct clock_event_device *dev, int broadcast);
@@ -90,6 +92,8 @@ static inline int tick_device_uses_broadcast(struct clock_event_device *dev,
static inline void tick_do_periodic_broadcast(struct clock_event_device *d) { }
static inline void tick_broadcast_on_off(unsigned long reason, int *oncpu) { }
static inline void tick_shutdown_broadcast(unsigned int *cpup) { }
+static inline void tick_suspend_broadcast(void) { }
+static inline int tick_resume_broadcast(void) { return 0; }
/*
* Set the periodic handler in non broadcast mode
diff --git a/kernel/timer.c b/kernel/timer.c
index 6663a87..718437f 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -997,6 +997,9 @@ static int timekeeping_resume(struct sys_device *dev)
write_sequnlock_irqrestore(&xtime_lock, flags);
touch_softlockup_watchdog();
+
+ clockevents_notify(CLOCK_EVT_NOTIFY_RESUME, NULL);
+
/* Resume hrtimers */
clock_was_set();
@@ -1011,6 +1014,9 @@ static int timekeeping_suspend(struct sys_device *dev, pm_message_t state)
timekeeping_suspended = 1;
timekeeping_suspend_time = read_persistent_clock();
write_sequnlock_irqrestore(&xtime_lock, flags);
+
+ clockevents_notify(CLOCK_EVT_NOTIFY_SUSPEND, NULL);
+
return 0;
}
next prev parent reply other threads:[~2007-03-06 0:19 UTC|newest]
Thread overview: 187+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-28 5:16 Linux 2.6.21-rc2 Linus Torvalds
2007-02-28 5:50 ` Gabriel C
2007-02-28 7:13 ` [PATCH] affinity is not defined in non-smp kernels - i386 Fernando Luis Vázquez Cao
2007-02-28 7:16 ` [PATCH] affinity is not defined in non-smp kernels - i386 (v2) Fernando Luis Vázquez Cao
2007-02-28 7:24 ` [PATCH] affinity is not defined in non-smp kernels - i386 Eric W. Biederman
2007-02-28 17:31 ` Bill Davidsen
2007-02-28 18:21 ` Eric W. Biederman
2007-02-28 18:30 ` Linus Torvalds
2007-02-28 7:42 ` [PATCH] affinity is not defined in non-smp kernels - i386 (v2) Fernando Luis Vázquez Cao
2007-02-28 7:17 ` [PATCH] affinity is not defined in non-smp kernels - x86_64 Fernando Luis Vázquez Cao
2007-02-28 7:23 ` Linux 2.6.21-rc2 David Brown
2007-02-28 7:39 ` Brice Goglin
2007-02-28 13:09 ` Eric W. Biederman
2007-02-28 16:44 ` David Brown
2007-02-28 17:07 ` Randy Dunlap
2007-02-28 7:41 ` [PATCH] affinity is not defined in non-smp kernels - x86_64 Fernando Luis Vázquez Cao
2007-02-28 7:59 ` Linux 2.6.21-rc2 Damien Wyart
2007-03-05 1:50 ` [1/6] 2.6.21-rc2: known regressions Adrian Bunk
2007-03-05 2:26 ` Andrew Morton
2007-03-05 3:35 ` Greg KH
2007-03-06 0:55 ` Johannes Berg
2007-03-05 4:01 ` Mark Lord
2007-03-05 4:34 ` Greg KH
2007-03-05 12:42 ` Marcel Holtmann
2007-03-05 4:34 ` [BUG} usb regression in 2.6.21-rc2-git3 Mark Lord
2007-03-05 4:37 ` [BUG] sdhci regression in 2.6.21-rc2 Mark Lord
2007-03-05 5:36 ` Pierre Ossman
2007-03-05 14:25 ` Mark Lord
2007-03-05 15:19 ` Mark Lord
2007-03-06 4:17 ` Andrew Morton
2007-03-06 5:47 ` Pierre Ossman
2007-03-06 6:09 ` Andrew Morton
2007-03-06 7:23 ` Pierre Ossman
2007-03-05 15:20 ` Pierre Ossman
2007-03-05 15:23 ` Pierre Ossman
2007-03-05 15:35 ` Mark Lord
2007-03-05 16:00 ` Pierre Ossman
2007-03-05 16:18 ` Mark Lord
2007-03-05 4:43 ` [BUG} usb regression in 2.6.21-rc2-git3 Mark Lord
2007-03-12 14:56 ` [BUG} usb-serial " Mark Lord
2007-03-12 15:06 ` Oliver Neukum
2007-03-12 15:13 ` Mark Lord
2007-03-12 15:27 ` Oliver Neukum
2007-03-12 15:29 ` Greg KH
2007-03-12 15:38 ` Oliver Neukum
2007-03-12 16:03 ` Mark Lord
2007-03-12 16:10 ` Greg KH
2007-03-12 16:22 ` Mark Lord
2007-03-12 16:11 ` Mark Lord
2007-03-12 16:14 ` Mark Lord
2007-03-12 16:27 ` Mark Lord
2007-03-12 16:50 ` Mark Lord
2007-03-12 18:48 ` Oliver Neukum
2007-03-12 20:22 ` [PATCH] usb-serial regression (Oops) in 2.6.21-rc* Mark Lord
2007-03-12 20:33 ` Greg KH
2007-03-12 22:20 ` Mark Lord
2007-03-12 22:42 ` Jim Radford
2007-03-12 22:59 ` [PATCH] usb-serial regression fix Jim Radford
2007-03-13 0:18 ` Greg KH
2007-03-13 0:41 ` Jim Radford
2007-03-13 1:55 ` Mark Lord
2007-03-13 9:14 ` Jim Radford
2007-03-13 10:14 ` Oliver Neukum
2007-03-13 13:39 ` Mark Lord
2007-03-13 13:50 ` Oliver Neukum
2007-03-13 13:55 ` Mark Lord
2007-03-13 15:30 ` Jim Radford
2007-03-13 16:35 ` Mark Lord
2007-03-12 16:28 ` [BUG} usb-serial regression in 2.6.21-rc2-git3 Oliver Neukum
2007-03-12 15:31 ` Greg KH
2007-03-07 11:06 ` [1/6] 2.6.21-rc2: known regressions Jeff Garzik
2007-03-07 22:17 ` Albert Hopkins
2007-03-05 1:50 ` [2/6] " Adrian Bunk
2007-03-07 11:09 ` Jeff Garzik
2007-03-07 16:10 ` Linus Torvalds
2007-03-08 12:03 ` Ash Milsted
2007-03-08 12:31 ` Michael S. Tsirkin
2007-03-08 15:11 ` Jeff Chua
2007-03-08 18:01 ` Linus Torvalds
2007-03-08 19:06 ` Ingo Molnar
2007-03-08 19:10 ` Ingo Molnar
2007-03-08 19:47 ` Michael S. Tsirkin
2007-03-08 20:10 ` Ingo Molnar
2007-03-08 19:25 ` Ingo Molnar
2007-03-08 23:07 ` Ingo Molnar
2007-03-08 23:12 ` Ingo Molnar
2007-03-08 23:28 ` Ingo Molnar
2007-03-08 23:49 ` Linus Torvalds
2007-03-09 10:56 ` Ingo Molnar
2007-03-09 18:00 ` Linus Torvalds
2007-03-09 11:19 ` Pavel Machek
2007-03-18 16:07 ` Ingo Molnar
2007-03-18 16:40 ` [linux-pm] " Jim Gettys
2007-03-19 19:08 ` BSOD (was: [2/6] 2.6.21-rc2: known regressions) Pete Zaitcev
2007-03-19 19:38 ` BSOD David Miller
2007-03-19 19:54 ` BSOD Jesse Barnes
2007-03-19 20:05 ` BSOD David Miller
2007-03-19 20:20 ` BSOD Jesse Barnes
2007-03-19 20:20 ` BSOD Jim Gettys
2007-03-20 9:19 ` BSOD Paul Mackerras
2007-03-20 20:33 ` BSOD Jim Gettys
2007-03-19 20:33 ` [linux-pm] [2/6] 2.6.21-rc2: known regressions Bill Davidsen
2007-03-19 22:08 ` Jim Gettys
2007-03-20 14:44 ` Bill Davidsen
2007-03-09 17:48 ` Johannes Stezenbach
2007-03-09 23:35 ` Pavel Machek
2007-03-10 9:01 ` Ingo Molnar
2007-03-10 11:43 ` Stefan Seyfried
2007-03-10 13:53 ` Johannes Stezenbach
2007-03-10 15:18 ` Ingo Molnar
2007-03-10 22:08 ` Pavel Machek
2007-03-11 8:20 ` Ingo Molnar
2007-03-12 6:34 ` Stefan Seyfried
2007-03-10 22:04 ` s2ram (was Re: [2/6] 2.6.21-rc2: known regressions) Pavel Machek
2007-03-08 19:46 ` [2/6] 2.6.21-rc2: known regressions Michael S. Tsirkin
2007-03-08 19:57 ` Michael S. Tsirkin
[not found] ` <20070311120802.GA8823@elte.hu>
2007-03-12 20:20 ` Michael S. Tsirkin
2007-03-17 21:41 ` Michael S. Tsirkin
2007-03-17 22:33 ` Thomas Gleixner
2007-03-21 17:28 ` Michael S. Tsirkin
2007-03-05 1:50 ` [3/6] " Adrian Bunk
2007-03-05 3:58 ` Michal Jaegermann
2007-03-06 17:08 ` Alan Cox
2007-03-07 11:12 ` Jeff Garzik
2007-03-10 1:09 ` Mathieu Bérard
2007-03-10 4:11 ` and try remove another quirk on this computers " Sergio Monteiro Basto
2007-03-10 5:41 ` Linus Torvalds
2007-03-11 4:32 ` Sergio Monteiro Basto
2007-03-12 11:37 ` Tejun Heo
2007-03-13 12:31 ` Mathieu Bérard
2007-03-13 12:41 ` Tejun Heo
2007-03-13 20:56 ` Mathieu Bérard
2007-03-14 6:07 ` Tejun Heo
2007-03-14 10:49 ` Mathieu Bérard
2007-03-05 1:50 ` [4/6] " Adrian Bunk
2007-03-05 10:35 ` Antonino A. Daplas
2007-03-05 15:06 ` Andrew
2007-03-08 23:28 ` Len Brown
2007-03-09 19:25 ` Andrew
2007-03-05 12:21 ` Richard Purdie
2007-03-05 1:50 ` [5/6] " Adrian Bunk
2007-03-05 7:57 ` Ingo Molnar
2007-03-05 8:13 ` Andrew Morton
2007-03-05 15:25 ` Daniel Walker
2007-03-05 15:27 ` Ingo Molnar
2007-03-05 16:42 ` Daniel Walker
2007-03-05 19:30 ` Ingo Molnar
2007-03-05 16:14 ` Bill Davidsen
2007-03-05 16:21 ` Ingo Molnar
2007-03-05 23:12 ` Adrian Bunk
2007-03-05 23:43 ` Thomas Gleixner
2007-03-05 23:45 ` Linus Torvalds
2007-03-06 0:25 ` Thomas Gleixner [this message]
2007-03-06 6:49 ` Soeren Sonnenburg
2007-03-06 7:49 ` Soeren Sonnenburg
2007-03-06 0:38 ` Linus Torvalds
2007-03-06 1:02 ` Thomas Gleixner
2007-03-06 1:31 ` Linus Torvalds
2007-03-06 2:18 ` Linus Torvalds
2007-03-06 7:25 ` Ingo Molnar
2007-03-06 8:09 ` Thomas Gleixner
2007-03-06 10:33 ` Michael S. Tsirkin
2007-03-06 10:37 ` Ingo Molnar
2007-03-06 10:46 ` Michael S. Tsirkin
2007-03-06 11:32 ` Ingo Molnar
2007-03-06 12:20 ` Michael S. Tsirkin
2007-03-06 16:44 ` Linus Torvalds
2007-03-06 17:05 ` Ingo Molnar
2007-03-06 17:29 ` [PATCH] highres: do not run the TIMER_SOFTIRQ after switching to highres mode Thomas Gleixner
2007-03-06 17:41 ` Linus Torvalds
2007-03-16 15:18 ` [5/6] 2.6.21-rc2: known regressions Randy Dunlap
2007-03-06 11:36 ` Soeren Sonnenburg
2007-03-06 12:07 ` Ingo Molnar
2007-03-06 12:15 ` Michael S. Tsirkin
2007-03-06 12:51 ` Ingo Molnar
2007-03-06 12:55 ` Michael S. Tsirkin
2007-03-06 13:03 ` Ingo Molnar
2007-03-06 13:09 ` Thomas Gleixner
2007-03-06 12:09 ` Jeff Chua
2007-03-11 17:32 ` Pavel Machek
2007-03-06 10:33 ` Michael S. Tsirkin
2007-03-05 1:50 ` [6/6] " Adrian Bunk
2007-03-05 2:07 ` David Miller
2007-03-05 2:26 ` Adrian Bunk
2007-03-05 2:29 ` David Miller
2007-03-05 4:42 ` David Miller
2007-03-05 3:32 ` Greg KH
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