[Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
Date		: 2009-01-21 7:15 (19 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Paul Collins]

"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org> writes:

> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
> Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
> Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
> Date		: 2009-01-21 7:15 (19 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
> References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4

I've just done ten suspend/resume cycles with 2.6.29-rc4 and this
message was not logged, so it's either gone away or else become much
more difficult to reproduce.

-- 
Paul Collins
Wellington, New Zealand

Dag vijandelijk luchtschip de huismeester is dood

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Ingo Molnar]

* Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org> wrote:

> "Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org> writes:
> 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
> > Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
> > Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
> > Date		: 2009-01-21 7:15 (19 days old)
> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
> > References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4
> 
> I've just done ten suspend/resume cycles with 2.6.29-rc4 and this
> message was not logged, so it's either gone away or else become much
> more difficult to reproduce.

Various suspend handlers were enabling irqs spuriously - fixed by recent patches in 
-rc4. The warning above is consistent with the timekeeping code being surprised with 
a premature irqs-enable.

	Ingo

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Thomas Gleixner]

On Sun, 8 Feb 2009, Rafael J. Wysocki wrote:

> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
> Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
> Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
> Date		: 2009-01-21 7:15 (19 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496

First bad commit ? The commit adds a WARN_ON to getnstimeofday() when
it is called while timekeeping is suspended. So instead of pointing to
that commit can we please figure out WTF this happens?

Looking at the call stack this is pretty obvious:

[ee4fdc80] [c0053b10] do_gettimeofday+0x1c/0x58
[ee4fdcb0] [c0348868] evdev_event+0x28/0x158
[ee4fdce0] [c0340ce4] input_pass_event+0xac/0xb0
[ee4fdd00] [c0343a44] input_event+0x80/0x98
[ee4fdd20] [c02f6d24] via_pmu_event+0x88/0x8c
[ee4fdd30] [c02f4f60] via_pmu_interrupt+0x6e0/0xb2c
[ee4fdd90] [c02f5664] pmu_wait_complete+0x50/0x84
[ee4fddb0] [c02f6764] powerbook_sleep+0x9f0/0xb24
[ee4fde40] [c00607f8] suspend_devices_and_enter+0x10c/0x180
[ee4fde60] [c0060a1c] enter_state+0x11c/0x160
[ee4fde80] [c02f4404] pmu_ioctl+0x15c/0x24c
[ee4fde90] [c00bab04] vfs_ioctl+0x8c/0x90
[ee4fdea0] [c00babb8] do_vfs_ioctl+0x8c/0x70c
[ee4fdf10] [c00bb2d4] sys_ioctl+0x9c/0xa4
[ee4fdf40] [c0012eb8] ret_from_syscall+0x0/0x38

powerbook_sleep() calls into the event interface which calls
gettimeofday() _AFTER_ timekeeping was suspended already so the
WARN_ON triggers.

Thanks,

	tglx

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

On Monday 09 February 2009, Paul Collins wrote:
> "Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org> writes:
> 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
> > Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
> > Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
> > Date		: 2009-01-21 7:15 (19 days old)
> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
> > References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4
> 
> I've just done ten suspend/resume cycles with 2.6.29-rc4 and this
> message was not logged, so it's either gone away or else become much
> more difficult to reproduce.

Thanks, I've closed the bug.

Sorry for the slow response.

Rafael

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Paul Collins]

"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org> writes:

> On Monday 09 February 2009, Paul Collins wrote:
>> "Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org> writes:
>> 
>> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
>> > Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
>> > Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
>> > Date		: 2009-01-21 7:15 (19 days old)
>> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
>> > References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4
>> 
>> I've just done ten suspend/resume cycles with 2.6.29-rc4 and this
>> message was not logged, so it's either gone away or else become much
>> more difficult to reproduce.
>
> Thanks, I've closed the bug.

It turns out I didn't test this properly.  The warning is only triggered
when I close and open the lid, not when I run 'snooze' to suspend and
hit Return to resume, as I did for my so-called testing of 2.6.29-rc4.

Whatever is triggering the warning is still present in 2.6.29-rc5.

-- 
Paul Collins
Wellington, New Zealand

Dag vijandelijk luchtschip de huismeester is dood

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Benjamin Herrenschmidt]

On Mon, 2009-02-16 at 20:17 +1300, Paul Collins wrote:
> It turns out I didn't test this properly.  The warning is only
> triggered
> when I close and open the lid, not when I run 'snooze' to suspend and
> hit Return to resume, as I did for my so-called testing of 2.6.29-rc4.
> 
> Whatever is triggering the warning is still present in 2.6.29-rc5.

Right, we probably need to stop sending input events from the PMU driver
when it's "suspended".

Ping me if I don't produce a patch tomorrow (ie, I forgot :-)

Cheers,
Ben.

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Paul Collins]

Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org> writes:

> On Mon, 2009-02-16 at 20:17 +1300, Paul Collins wrote:
>> It turns out I didn't test this properly.  The warning is only
>> triggered
>> when I close and open the lid, not when I run 'snooze' to suspend and
>> hit Return to resume, as I did for my so-called testing of 2.6.29-rc4.
>> 
>> Whatever is triggering the warning is still present in 2.6.29-rc5.
>
> Right, we probably need to stop sending input events from the PMU driver
> when it's "suspended".
>
> Ping me if I don't produce a patch tomorrow (ie, I forgot :-)

Just for laughs I slapped together the following, which seems to do the
job, although not especially tidily.


diff --git a/drivers/macintosh/via-pmu-event.c b/drivers/macintosh/via-pmu-event.c
index 25cd565..33c4b45 100644
--- a/drivers/macintosh/via-pmu-event.c
+++ b/drivers/macintosh/via-pmu-event.c
@@ -23,6 +23,7 @@
 #include <linux/input.h>
 #include <linux/adb.h>
 #include <linux/pmu.h>
+#include <linux/bug.h>
 #include "via-pmu-event.h"
 
 static struct input_dev *pmu_input_dev;
@@ -56,24 +57,62 @@ static int __init via_pmu_event_init(void)
 	return err;
 }
 
+static bool lid_event_pending;
+static int lid_event_pending_down;
+static bool power_button_event_pending;
+static int power_button_event_pending_down;
+
 void via_pmu_event(int key, int down)
 {
 
 	if (unlikely(!pmu_input_dev))
 		return;
 
-	switch (key) {
-	case PMU_EVT_POWER:
-		input_report_key(pmu_input_dev, KEY_POWER, down);
-		break;
-	case PMU_EVT_LID:
-		input_report_switch(pmu_input_dev, SW_LID, down);
-		break;
-	default:
-		/* no such key handled */
-		return;
-	}
+	if (!pmu_sys_suspended) {
+		switch (key) {
+		case PMU_EVT_POWER:
+			input_report_key(pmu_input_dev, KEY_POWER, down);
+			break;
+		case PMU_EVT_LID:
+			input_report_switch(pmu_input_dev, SW_LID, down);
+			break;
+		default:
+			/* no such key handled */
+			return;
+		}
+
+		input_sync(pmu_input_dev);
+	} else {
+		switch (key) {
+		case PMU_EVT_POWER:
+			power_button_event_pending = true;
+			power_button_event_pending_down = down;
+			break;
+		case PMU_EVT_LID:
+			lid_event_pending = true;
+			lid_event_pending_down = down;
+			break;
+		default:
+			/* no such key handled */
+			return;
+		}
+	}		
+}
 
+void via_pmu_event_resume(void)
+{
+	WARN_ON(pmu_sys_suspended);
+
+	if (power_button_event_pending) {
+		input_report_key(pmu_input_dev, KEY_POWER,
+				 power_button_event_pending_down);
+		power_button_event_pending = false;
+	}
+	if (lid_event_pending) {
+		input_report_switch(pmu_input_dev, SW_LID,
+				    lid_event_pending_down);
+		lid_event_pending = false;
+	}
 	input_sync(pmu_input_dev);
 }
 
diff --git a/drivers/macintosh/via-pmu-event.h b/drivers/macintosh/via-pmu-event.h
index 72c54de..2754adc 100644
--- a/drivers/macintosh/via-pmu-event.h
+++ b/drivers/macintosh/via-pmu-event.h
@@ -4,5 +4,6 @@
 #define PMU_EVT_POWER	0
 #define PMU_EVT_LID	1
 extern void via_pmu_event(int key, int down);
+extern void via_pmu_event_resume(void);
 
 #endif /* __VIA_PMU_EVENT_H */
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index b40fb9b..01b8689 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -2479,6 +2479,8 @@ static int pmu_sys_resume(struct sys_device *sysdev)
 	pmu_resume();
 	pmu_sys_suspended = 0;
 
+	via_pmu_event_resume();
+
 	return 0;
 }
 


-- 
Paul Collins
Wellington, New Zealand

Dag vijandelijk luchtschip de huismeester is dood

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Paul Collins]

Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org> writes:

> Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org> writes:
>
>> On Mon, 2009-02-16 at 20:17 +1300, Paul Collins wrote:
>>> It turns out I didn't test this properly.  The warning is only
>>> triggered
>>> when I close and open the lid, not when I run 'snooze' to suspend and
>>> hit Return to resume, as I did for my so-called testing of 2.6.29-rc4.
>>> 
>>> Whatever is triggering the warning is still present in 2.6.29-rc5.
>>
>> Right, we probably need to stop sending input events from the PMU driver
>> when it's "suspended".
>>
>> Ping me if I don't produce a patch tomorrow (ie, I forgot :-)
>
> Just for laughs I slapped together the following, which seems to do the
> job, although not especially tidily.

And it doesn't even do the job.  Judging by this new trace, submitting
input events from the via-pmu resume function is still too early.

NIP [c0053b4c] getnstimeofday+0x24/0x188
LR [c0053ccc] do_gettimeofday+0x1c/0x58
Call Trace:
[eed09cb0] [c0053ccc] do_gettimeofday+0x1c/0x58
[eed09ce0] [c03492cc] evdev_event+0x28/0x158
[eed09d10] [c0341748] input_pass_event+0xac/0xb0
[eed09d30] [c03444a8] input_event+0x80/0x98
[eed09d50] [c02f7668] via_pmu_event_resume+0x60/0xb8 <-- the function I added
[eed09d60] [c02f725c] pmu_sys_resume+0x5c/0x74
[eed09de0] [c02d6420] __sysdev_resume+0x64/0x84
[eed09e00] [c02d6498] sysdev_resume+0x58/0xa4
[eed09e20] [c02dd39c] device_power_up+0x18/0x38
[eed09e40] [c00609d4] suspend_devices_and_enter+0x11c/0x180
[eed09e60] [c0060be8] enter_state+0x11c/0x160
[eed09e80] [c02f4d6c] pmu_ioctl+0x15c/0x24c
[eed09e90] [c00bad34] vfs_ioctl+0x8c/0x90
[eed09ea0] [c00bade8] do_vfs_ioctl+0x8c/0x70c
[eed09f10] [c00bb504] sys_ioctl+0x9c/0xa4
[eed09f40] [c0012eb8] ret_from_syscall+0x0/0x38

-- 
Paul Collins
Wellington, New Zealand

Dag vijandelijk luchtschip de huismeester is dood

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Benjamin Herrenschmidt]

On Thu, 2009-02-19 at 21:27 +1300, Paul Collins wrote:
> > Just for laughs I slapped together the following, which seems to do
> the
> > job, although not especially tidily.
> 
> And it doesn't even do the job.  Judging by this new trace, submitting
> input events from the via-pmu resume function is still too early.
> 
What's up Thomas ? We can't call gettimeofday() from a sysdev
suspend/resume ? That's a little bit too harsh no ?

Cheers,
Ben.

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

On Thursday 19 February 2009, Benjamin Herrenschmidt wrote:
> On Thu, 2009-02-19 at 21:27 +1300, Paul Collins wrote:
> > > Just for laughs I slapped together the following, which seems to do
> > the
> > > job, although not especially tidily.
> > 
> > And it doesn't even do the job.  Judging by this new trace, submitting
> > input events from the via-pmu resume function is still too early.
> > 
> What's up Thomas ? We can't call gettimeofday() from a sysdev
> suspend/resume ? That's a little bit too harsh no ?

Perhaps the ordering is wrong (ie. via-pmu resume happens bevore timekeeping
resume)?

Rafael

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Thomas Gleixner]

On Thu, 19 Feb 2009, Benjamin Herrenschmidt wrote:

> On Thu, 2009-02-19 at 21:27 +1300, Paul Collins wrote:
> > > Just for laughs I slapped together the following, which seems to do
> > the
> > > job, although not especially tidily.
> > 
> > And it doesn't even do the job.  Judging by this new trace, submitting
> > input events from the via-pmu resume function is still too early.
> > 
> What's up Thomas ? We can't call gettimeofday() from a sysdev
> suspend/resume ? That's a little bit too harsh no ?

Well, harsh or not is not the question here. 

Fact is that you call gettimeofday() _before_ the timekeeping code has
resumed.

That's a simple ordering problem. timekeeping is in the sysdev class
as well and it's not the only sysdev which has explicit ordering
requirements.

Thanks,

	tglx

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

On Thursday 19 February 2009, Thomas Gleixner wrote:
> On Thu, 19 Feb 2009, Benjamin Herrenschmidt wrote:
> 
> > On Thu, 2009-02-19 at 21:27 +1300, Paul Collins wrote:
> > > > Just for laughs I slapped together the following, which seems to do
> > > the
> > > > job, although not especially tidily.
> > > 
> > > And it doesn't even do the job.  Judging by this new trace, submitting
> > > input events from the via-pmu resume function is still too early.
> > > 
> > What's up Thomas ? We can't call gettimeofday() from a sysdev
> > suspend/resume ? That's a little bit too harsh no ?
> 
> Well, harsh or not is not the question here. 
> 
> Fact is that you call gettimeofday() _before_ the timekeeping code has
> resumed.
> 
> That's a simple ordering problem. timekeeping is in the sysdev class
> as well and it's not the only sysdev which has explicit ordering
> requirements.

Do we need suspend-resume priorities for sysdevs?  Such that sysdevs
with a higher priority will always be suspended earlier and resumed later
than sysdevs with lower priority (or the other way around)?

Rafael

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Benjamin Herrenschmidt]

On Thu, 2009-02-19 at 14:00 +0100, Rafael J. Wysocki wrote:
> On Thursday 19 February 2009, Benjamin Herrenschmidt wrote:
> > On Thu, 2009-02-19 at 21:27 +1300, Paul Collins wrote:
> > > > Just for laughs I slapped together the following, which seems to do
> > > the
> > > > job, although not especially tidily.
> > > 
> > > And it doesn't even do the job.  Judging by this new trace, submitting
> > > input events from the via-pmu resume function is still too early.
> > > 
> > What's up Thomas ? We can't call gettimeofday() from a sysdev
> > suspend/resume ? That's a little bit too harsh no ?
> 
> Perhaps the ordering is wrong (ie. via-pmu resume happens bevore timekeeping
> resume)?

In this case, maybe gtod should just return the frozen time (ie, last
time at the time of suspend) rather than WARN ?

Ben.

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Benjamin Herrenschmidt]

On Thu, 2009-02-19 at 21:17 +0100, Thomas Gleixner wrote:
> 
> Well, harsh or not is not the question here. 
> 
> Fact is that you call gettimeofday() _before_ the timekeeping code has
> resumed.
> 
> That's a simple ordering problem. timekeeping is in the sysdev class
> as well and it's not the only sysdev which has explicit ordering
> requirements.

And how do I control that ordering ?

I find that a bit fishy ... What about making gettimeofday() in the
timekeeping code work, just return a frozen snapshot of the value on
suspend instead ?

Ben.

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

On Thursday 19 February 2009, Benjamin Herrenschmidt wrote:
> On Thu, 2009-02-19 at 14:00 +0100, Rafael J. Wysocki wrote:
> > On Thursday 19 February 2009, Benjamin Herrenschmidt wrote:
> > > On Thu, 2009-02-19 at 21:27 +1300, Paul Collins wrote:
> > > > > Just for laughs I slapped together the following, which seems to do
> > > > the
> > > > > job, although not especially tidily.
> > > > 
> > > > And it doesn't even do the job.  Judging by this new trace, submitting
> > > > input events from the via-pmu resume function is still too early.
> > > > 
> > > What's up Thomas ? We can't call gettimeofday() from a sysdev
> > > suspend/resume ? That's a little bit too harsh no ?
> > 
> > Perhaps the ordering is wrong (ie. via-pmu resume happens bevore timekeeping
> > resume)?
> 
> In this case, maybe gtod should just return the frozen time (ie, last
> time at the time of suspend) rather than WARN ?

This might work, but there seem to be more problems like this (cpufreq vs
timekeeping for example).

I think we need a more general approach.

Thanks,
Rafael

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Thomas Gleixner]

On Fri, 20 Feb 2009, Benjamin Herrenschmidt wrote:
> On Thu, 2009-02-19 at 21:17 +0100, Thomas Gleixner wrote:
> > 
> > Well, harsh or not is not the question here. 
> > 
> > Fact is that you call gettimeofday() _before_ the timekeeping code has
> > resumed.
> > 
> > That's a simple ordering problem. timekeeping is in the sysdev class
> > as well and it's not the only sysdev which has explicit ordering
> > requirements.
> 
> And how do I control that ordering ?
> 
> I find that a bit fishy ... What about making gettimeofday() in the
> timekeeping code work, just return a frozen snapshot of the value on
> suspend instead ?

We had problems in the past where we just returned frozen time and the
calling code got surprised when the time jumped 5 hours ahead just a
few microseconds later.

What I find more fishy is the fact that the lid switch needs to be a
sysdev. It's a simple input event, which causes the user space code to
trigger the suspend sequence when the lid is shut.

Thanks,

	tglx

Re: [Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Benjamin Herrenschmidt]

On Sun, 2009-02-22 at 20:31 +0100, Thomas Gleixner wrote:
> We had problems in the past where we just returned frozen time and the
> calling code got surprised when the time jumped 5 hours ahead just a
> few microseconds later.
> 
> What I find more fishy is the fact that the lid switch needs to be a
> sysdev. It's a simple input event, which causes the user space code to
> trigger the suspend sequence when the lid is shut.
> 
Well, the PMU is a sysdev for lots of good reasons.. then it -also-
happens to provide us with the lid switch event.

I'm a bit surprised by the explanation about the code that is surprised
to see the time jump. IE. Code -will- see the time jump anyway. IE. I
don't see how making gtod blow instead of returning a frozen time will
make any difference whatsoever for code who get the time some time
before suspend and then some time after resume and see a 5 hours gap...

Cheers,
Ben.

[Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
Date		: 2009-01-21 7:15 (34 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4
Handled-By	: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Patch		: http://lkml.org/lkml/2009/2/16/78

2.6.29-rc6-git7: Reported regressions from 2.6.28

[Rafael J. Wysocki]

This message contains a list of some regressions from 2.6.28, for which there
are no fixes in the mainline I know of.  If any of them have been fixed already,
please let me know.

If you know of any other unresolved regressions from 2.6.28, please let me know
either and I'll add them to the list.  Also, please let me know if any of the
entries below are invalid.

Each entry from the list will be sent additionally in an automatic reply to
this message with CCs to the people involved in reporting and handling the
issue.


Listed regressions statistics:

  Date          Total  Pending  Unresolved
  ----------------------------------------
  2009-03-03      108       33          28
  2009-02-24       95       32          24
  2009-02-14       85       33          27
  2009-02-08       82       45          36
  2009-02-04       66       51          39
  2009-01-20       38       35          27
  2009-01-11       13       13          10


Unresolved regressions
----------------------

Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12809
Subject		: iozone regression with 2.6.29-rc6
Submitter	: Lin Ming <ming.m.lin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-27 9:13 (5 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cf6e7d83bf334cc5916137862c920a97aabc018
References	: http://marc.info/?l=linux-kernel&m=123572630504360&w=4
Handled-By	: Wu Fengguang <fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12808
Subject		: Suspend regression with 2.6.29-rc
Submitter	: Tino Keitel <tino.keitel-Mmb7MZpHnFY@public.gmane.org>
Date		: 2009-02-24 19:08 (8 days old)
References	: http://marc.info/?l=linux-kernel&m=123550257312112&w=4
Handled-By	: Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
Subject		: i915 broken STR
Submitter	: Harvey Harrison <harvey.harrison-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-28 4:20 (4 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12805
Subject		: QinQ vlan trunking regression
Submitter	: Bart Trojanowski <bart-LIbhotJ4rFdeoWH0uzbU5w@public.gmane.org>
Date		: 2009-02-28 18:05 (4 days old)
References	: http://marc.info/?l=linux-kernel&m=123584439115868&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12804
Subject		: some tc commands fail
Submitter	: Joao Correia <joaomiguelcorreia-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-03-02 0:36 (2 days old)
References	: http://marc.info/?l=linux-kernel&m=123595420013357&w=4
Handled-By	: Jarek Poplawski <jarkao2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12800
Subject		: x86 PAT invalid vm_insert_pfn assumptions
Submitter	: Thomas Hellstrom <thellstrom-pghWNbHTmq7QT0dZR+AlfA@public.gmane.org>
Date		: 2009-03-02 01:40 (2 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12792
Subject		: 2.6.29-rc6-git4 boot failure
Submitter	: Sachin P. Sant <sachinp-xthvdsQ13ZrQT0dZR+AlfA@public.gmane.org>
Date		: 2009-02-27 23:19 (5 days old)
References	: http://ozlabs.org/pipermail/linuxppc-dev/2009-February/068771.html


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12778
Subject		: regression from 29rc5 to 29rc6
Submitter	: yury <urykhy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-25 09:25 (7 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12771
Subject		: Oops in i915_gem_flush
Submitter	: Kalev Lember <kalev-KfhB8dnw0QSuvFJfX82//w@public.gmane.org>
Date		: 2009-02-24 08:35 (8 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12769
Subject		: 3D performance gets very choppy after suspend/resume cycle (intel video)
Submitter	: Michael <auslands-kv-Mmb7MZpHnFY@public.gmane.org>
Date		: 2009-02-23 23:36 (9 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12765
Subject		: i915 VT switch with AIGLX causes X lock up
Submitter	: Sitsofe Wheeler <sitsofe-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-21 15:38 (11 days old)
References	: http://marc.info/?l=linux-kernel&m=123523074304955&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12764
Subject		: Can not ioremap virtual address for G33 hw status page
Submitter	: Maciej Rutecki <maciej.rutecki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-23 14:46 (9 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6fb88588555a18792a27f483887fe1f2af5f9c9b
References	: http://marc.info/?l=linux-kernel&m=123540053219505&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12763
Subject		: Different cpu MHz values for processor0 and processor1
Submitter	: Matthew A. Bockol <mbockol-dmoCqaWXHRX2fBVCVOL8/A@public.gmane.org>
Date		: 2009-02-21 5:42 (11 days old)
References	: http://marc.info/?l=linux-kernel&m=123519687807246&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12758
Subject		: ACPI exception with 2.6.29-rc6
Submitter	: Heinz Diehl <htd-HjJ2MNWy62to6+H+lsi3Gti2O/JbrIOy@public.gmane.org>
Date		: 2009-02-23 16:46 (9 days old)
References	: http://marc.info/?l=linux-kernel&m=123540758700861&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12705
Subject		: X200: Brightness broken since 2.6.29-rc4-58-g4c098bc
Submitter	: Nico Schottelius <nico-linux-20090213-xuaVFQXs+5hIG4jRRZ66WA@public.gmane.org>
Date		: 2009-02-13 9:33 (19 days old)
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
Handled-By	: Len Brown <lenb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12681
Subject		: s2ram: fails to wake up on Acer Extensa 4220 (SMP disabled)
Submitter	: Orivej Desh <smpuj-5URONGGNgjI@public.gmane.org>
Date		: 2009-02-09 13:01 (23 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cfe62c8010ac56e1bd3827e30386a87cc2f3594


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12680
Subject		: Entropy pool problem
Submitter	: Valentin QUEQUET <v.quequet-techniques-1tsiiZ//OF9QFI55V6+gNQ@public.gmane.org>
Date		: 2009-02-09 09:12 (23 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12670
Subject		: BUG: unable to handle kernel paging request at pin_to_kill+0x21
Submitter	: Alessandro Bono <alessandro.bono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-08 11:04 (24 days old)
References	: http://marc.info/?l=linux-kernel&m=123409113223833&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12668
Subject		: USB flash disk surprise disconnect
Submitter	: Vegard Nossum <vegard.nossum-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-08 10:21 (24 days old)
References	: http://marc.info/?l=linux-kernel&m=123408851821292&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12574
Subject		: possible circular locking dependency detected
Submitter	: Michael S. Tsirkin <m.s.tsirkin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-29 11:35 (34 days old)
References	: http://lkml.org/lkml/2009/2/9/205


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12501
Subject		: build bug in eeepc-laptop.c
Submitter	: Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
Date		: 2009-01-14 17:25 (49 days old)
References	: http://lkml.org/lkml/2009/1/14/315


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12499
Subject		: Problem with using bluetooth adaper connected to usb port
Submitter	: Maciej Rutecki <maciej.rutecki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-13 18:34 (50 days old)
References	: http://marc.info/?l=linux-kernel&m=123187185426236&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12497
Subject		: new barrier warnings in 2.6.29-rc1
Submitter	: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Date		: 2009-01-12 15:46 (51 days old)
References	: http://marc.info/?l=linux-kernel&m=123177528217154&w=4
Handled-By	: Jens Axboe <jens.axboe-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12490
Subject		: ath5k related kernel panic in 2.6.29-rc1
Submitter	: Sergey S. Kostyliov <rathamahata-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-12 7:38 (51 days old)
References	: http://marc.info/?l=linux-kernel&m=123174591509586&w=4
Handled-By	: Bob Copeland <me-aXfl/3sk2vNUbtYUoyoikg@public.gmane.org>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12444
Subject		: X hangs following switch from radeonfb console - Bisected
Submitter	: Graham Murray <graham-0mDQKtL6jrwDXYZnReoRVg@public.gmane.org>
Date		: 2009-01-13 14:03 (50 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7c1c2871a6a3a114853ec6836e9035ac1c0c7f7a


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12419
Subject		: possible circular locking dependency on i915 dma
Submitter	: Wang Chen <wangchen-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
Date		: 2009-01-08 14:11 (55 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=546b0974c39657017407c86fe79811100b60700d
References	: http://marc.info/?l=linux-kernel&m=123142399720125&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12418
Subject		: Repeated ioctl(4, 0x40046445, ..) loop in glxgears
Submitter	: Pallipadi, Venkatesh <venkatesh.pallipadi-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-07 22:43 (56 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7c1c2871a6a3a114853ec6836e9035ac1c0c7f7a
References	: http://marc.info/?l=linux-kernel&m=123136836213319&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-05 4:13 (58 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4


Regressions with patches
------------------------

Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12811
Subject		: undefined reference to `physmap_set_partitions' on powerpc
Submitter	: Rogério Brito <rbrito-qczF+2RCDl1fyO9Q7EP/yw@public.gmane.org>
Date		: 2009-03-02 9:43 (2 days old)
References	: http://marc.info/?l=linux-kernel&m=123598702511826&w=4
Handled-By	: Rogério Brito <rbrito-qczF+2RCDl1fyO9Q7EP/yw@public.gmane.org>
Patch		: http://marc.info/?l=linux-kernel&m=123606933628020&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12762
Subject		: Disk errors loop forever in 2.6.29
Submitter	: Sitsofe Wheeler <sitsofe-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-19 13:53 (13 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b60af5b0adf0da24c673598c8d3fb4d4189a15ce
References	: http://marc.info/?l=linux-kernel&m=123505185407604&w=4
Handled-By	: James Bottomley <James.Bottomley-JuX6DAaQMKPCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>
Patch		: http://marc.info/?l=linux-kernel&m=123508030726900&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12761
Subject		: Bonding tied to IPV6 in 29-rc5
Submitter	: J.A. Magallón <jamagallon-sh/6fXdz2Rs@public.gmane.org>
Date		: 2009-02-17 8:52 (15 days old)
References	: http://marc.info/?l=linux-kernel&m=123486078219980&w=4
Handled-By	: Brian Haley <brian.haley-VXdhtT5mjnY@public.gmane.org>
Patch		: http://marc.info/?l=linux-kernel&m=123517631120945&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12671
Subject		: uvc_status_cleanup(): undefined reference to `input_unregister_device'
Submitter	: Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
Date		: 2009-02-08 14:58 (24 days old)
References	: http://marc.info/?l=linux-kernel&m=123410529909318&w=4
Handled-By	: Randy Dunlap <randy.dunlap-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Patch		: http://lkml.org/lkml/2009/2/15/172


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
Date		: 2009-01-21 7:15 (42 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4
Handled-By	: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Patch		: http://lkml.org/lkml/2009/2/16/78


For details, please visit the bug entries and follow the links given in
references.

As you can see, there is a Bugzilla entry for each of the listed regressions.
There also is a Bugzilla entry used for tracking the regressions from 2.6.28,
unresolved as well as resolved, at:

http://bugzilla.kernel.org/show_bug.cgi?id=12398

Please let me know if there are any Bugzilla entries that should be added to
the list in there.

Thanks,
Rafael

[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-05 4:13 (58 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4

[Bug #12419] possible circular locking dependency on i915 dma

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12419
Subject		: possible circular locking dependency on i915 dma
Submitter	: Wang Chen <wangchen-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
Date		: 2009-01-08 14:11 (55 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=546b0974c39657017407c86fe79811100b60700d
References	: http://marc.info/?l=linux-kernel&m=123142399720125&w=4

[Bug #12444] X hangs following switch from radeonfb console - Bisected

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12444
Subject		: X hangs following switch from radeonfb console - Bisected
Submitter	: Graham Murray <graham-0mDQKtL6jrwDXYZnReoRVg@public.gmane.org>
Date		: 2009-01-13 14:03 (50 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7c1c2871a6a3a114853ec6836e9035ac1c0c7f7a

[Bug #12497] new barrier warnings in 2.6.29-rc1

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12497
Subject		: new barrier warnings in 2.6.29-rc1
Submitter	: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Date		: 2009-01-12 15:46 (51 days old)
References	: http://marc.info/?l=linux-kernel&m=123177528217154&w=4
Handled-By	: Jens Axboe <jens.axboe-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>

[Bug #12490] ath5k related kernel panic in 2.6.29-rc1

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12490
Subject		: ath5k related kernel panic in 2.6.29-rc1
Submitter	: Sergey S. Kostyliov <rathamahata-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-12 7:38 (51 days old)
References	: http://marc.info/?l=linux-kernel&m=123174591509586&w=4
Handled-By	: Bob Copeland <me-aXfl/3sk2vNUbtYUoyoikg@public.gmane.org>

[Bug #12418] Repeated ioctl(4, 0x40046445, ..) loop in glxgears

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12418
Subject		: Repeated ioctl(4, 0x40046445, ..) loop in glxgears
Submitter	: Pallipadi, Venkatesh <venkatesh.pallipadi-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-07 22:43 (56 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7c1c2871a6a3a114853ec6836e9035ac1c0c7f7a
References	: http://marc.info/?l=linux-kernel&m=123136836213319&w=4

[Bug #12499] Problem with using bluetooth adaper connected to usb port

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12499
Subject		: Problem with using bluetooth adaper connected to usb port
Submitter	: Maciej Rutecki <maciej.rutecki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-13 18:34 (50 days old)
References	: http://marc.info/?l=linux-kernel&m=123187185426236&w=4

[Bug #12668] USB flash disk surprise disconnect

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12668
Subject		: USB flash disk surprise disconnect
Submitter	: Vegard Nossum <vegard.nossum-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-08 10:21 (24 days old)
References	: http://marc.info/?l=linux-kernel&m=123408851821292&w=4

[Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
Date		: 2009-01-21 7:15 (42 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4
Handled-By	: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Patch		: http://lkml.org/lkml/2009/2/16/78

[Bug #12501] build bug in eeepc-laptop.c

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12501
Subject		: build bug in eeepc-laptop.c
Submitter	: Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
Date		: 2009-01-14 17:25 (49 days old)
References	: http://lkml.org/lkml/2009/1/14/315

[Bug #12574] possible circular locking dependency detected

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12574
Subject		: possible circular locking dependency detected
Submitter	: Michael S. Tsirkin <m.s.tsirkin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-01-29 11:35 (34 days old)
References	: http://lkml.org/lkml/2009/2/9/205

[Bug #12681] s2ram: fails to wake up on Acer Extensa 4220 (SMP disabled)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12681
Subject		: s2ram: fails to wake up on Acer Extensa 4220 (SMP disabled)
Submitter	: Orivej Desh <smpuj-5URONGGNgjI@public.gmane.org>
Date		: 2009-02-09 13:01 (23 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cfe62c8010ac56e1bd3827e30386a87cc2f3594

[Bug #12670] BUG: unable to handle kernel paging request at pin_to_kill+0x21

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12670
Subject		: BUG: unable to handle kernel paging request at pin_to_kill+0x21
Submitter	: Alessandro Bono <alessandro.bono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-08 11:04 (24 days old)
References	: http://marc.info/?l=linux-kernel&m=123409113223833&w=4

[Bug #12680] Entropy pool problem

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12680
Subject		: Entropy pool problem
Submitter	: Valentin QUEQUET <v.quequet-techniques-1tsiiZ//OF9QFI55V6+gNQ@public.gmane.org>
Date		: 2009-02-09 09:12 (23 days old)

[Bug #12671] uvc_status_cleanup(): undefined reference to `input_unregister_device'

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12671
Subject		: uvc_status_cleanup(): undefined reference to `input_unregister_device'
Submitter	: Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
Date		: 2009-02-08 14:58 (24 days old)
References	: http://marc.info/?l=linux-kernel&m=123410529909318&w=4
Handled-By	: Randy Dunlap <randy.dunlap-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Patch		: http://lkml.org/lkml/2009/2/15/172

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12705
Subject		: X200: Brightness broken since 2.6.29-rc4-58-g4c098bc
Submitter	: Nico Schottelius <nico-linux-20090213-xuaVFQXs+5hIG4jRRZ66WA@public.gmane.org>
Date		: 2009-02-13 9:33 (19 days old)
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
Handled-By	: Len Brown <lenb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

[Bug #12758] ACPI exception with 2.6.29-rc6

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12758
Subject		: ACPI exception with 2.6.29-rc6
Submitter	: Heinz Diehl <htd-HjJ2MNWy62to6+H+lsi3Gti2O/JbrIOy@public.gmane.org>
Date		: 2009-02-23 16:46 (9 days old)
References	: http://marc.info/?l=linux-kernel&m=123540758700861&w=4

[Bug #12761] Bonding tied to IPV6 in 29-rc5

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12761
Subject		: Bonding tied to IPV6 in 29-rc5
Submitter	: J.A. Magallón <jamagallon-sh/6fXdz2Rs@public.gmane.org>
Date		: 2009-02-17 8:52 (15 days old)
References	: http://marc.info/?l=linux-kernel&m=123486078219980&w=4
Handled-By	: Brian Haley <brian.haley-VXdhtT5mjnY@public.gmane.org>
Patch		: http://marc.info/?l=linux-kernel&m=123517631120945&w=4

[Bug #12763] Different cpu MHz values for processor0 and processor1

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12763
Subject		: Different cpu MHz values for processor0 and processor1
Submitter	: Matthew A. Bockol <mbockol-dmoCqaWXHRX2fBVCVOL8/A@public.gmane.org>
Date		: 2009-02-21 5:42 (11 days old)
References	: http://marc.info/?l=linux-kernel&m=123519687807246&w=4

[Bug #12762] Disk errors loop forever in 2.6.29

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12762
Subject		: Disk errors loop forever in 2.6.29
Submitter	: Sitsofe Wheeler <sitsofe-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-19 13:53 (13 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b60af5b0adf0da24c673598c8d3fb4d4189a15ce
References	: http://marc.info/?l=linux-kernel&m=123505185407604&w=4
Handled-By	: James Bottomley <James.Bottomley-JuX6DAaQMKPCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>
Patch		: http://marc.info/?l=linux-kernel&m=123508030726900&w=4

[Bug #12764] Can not ioremap virtual address for G33 hw status page

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12764
Subject		: Can not ioremap virtual address for G33 hw status page
Submitter	: Maciej Rutecki <maciej.rutecki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-23 14:46 (9 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6fb88588555a18792a27f483887fe1f2af5f9c9b
References	: http://marc.info/?l=linux-kernel&m=123540053219505&w=4

[Bug #12771] Oops in i915_gem_flush

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12771
Subject		: Oops in i915_gem_flush
Submitter	: Kalev Lember <kalev-KfhB8dnw0QSuvFJfX82//w@public.gmane.org>
Date		: 2009-02-24 08:35 (8 days old)

[Bug #12769] 3D performance gets very choppy after suspend/resume cycle (intel video)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12769
Subject		: 3D performance gets very choppy after suspend/resume cycle (intel video)
Submitter	: Michael <auslands-kv-Mmb7MZpHnFY@public.gmane.org>
Date		: 2009-02-23 23:36 (9 days old)

[Bug #12778] regression from 29rc5 to 29rc6

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12778
Subject		: regression from 29rc5 to 29rc6
Submitter	: yury <urykhy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-25 09:25 (7 days old)

[Bug #12765] i915 VT switch with AIGLX causes X lock up

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12765
Subject		: i915 VT switch with AIGLX causes X lock up
Submitter	: Sitsofe Wheeler <sitsofe-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-21 15:38 (11 days old)
References	: http://marc.info/?l=linux-kernel&m=123523074304955&w=4

[Bug #12792] 2.6.29-rc6-git4 boot failure

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12792
Subject		: 2.6.29-rc6-git4 boot failure
Submitter	: Sachin P. Sant <sachinp-xthvdsQ13ZrQT0dZR+AlfA@public.gmane.org>
Date		: 2009-02-27 23:19 (5 days old)
References	: http://ozlabs.org/pipermail/linuxppc-dev/2009-February/068771.html

[Bug #12805] QinQ vlan trunking regression

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12805
Subject		: QinQ vlan trunking regression
Submitter	: Bart Trojanowski <bart-LIbhotJ4rFdeoWH0uzbU5w@public.gmane.org>
Date		: 2009-02-28 18:05 (4 days old)
References	: http://marc.info/?l=linux-kernel&m=123584439115868&w=4

[Bug #12804] some tc commands fail

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12804
Subject		: some tc commands fail
Submitter	: Joao Correia <joaomiguelcorreia-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-03-02 0:36 (2 days old)
References	: http://marc.info/?l=linux-kernel&m=123595420013357&w=4
Handled-By	: Jarek Poplawski <jarkao2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

[Bug #12800] x86 PAT invalid vm_insert_pfn assumptions

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12800
Subject		: x86 PAT invalid vm_insert_pfn assumptions
Submitter	: Thomas Hellstrom <thellstrom-pghWNbHTmq7QT0dZR+AlfA@public.gmane.org>
Date		: 2009-03-02 01:40 (2 days old)

[Bug #12806] i915 broken STR

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
Subject		: i915 broken STR
Submitter	: Harvey Harrison <harvey.harrison-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-28 4:20 (4 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4

[Bug #12809] iozone regression with 2.6.29-rc6

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12809
Subject		: iozone regression with 2.6.29-rc6
Submitter	: Lin Ming <ming.m.lin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date		: 2009-02-27 9:13 (5 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cf6e7d83bf334cc5916137862c920a97aabc018
References	: http://marc.info/?l=linux-kernel&m=123572630504360&w=4
Handled-By	: Wu Fengguang <fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

[Bug #12808] Suspend regression with 2.6.29-rc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12808
Subject		: Suspend regression with 2.6.29-rc
Submitter	: Tino Keitel <tino.keitel-Mmb7MZpHnFY@public.gmane.org>
Date		: 2009-02-24 19:08 (8 days old)
References	: http://marc.info/?l=linux-kernel&m=123550257312112&w=4
Handled-By	: Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org>

[Bug #12811] undefined reference to `physmap_set_partitions' on powerpc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12811
Subject		: undefined reference to `physmap_set_partitions' on powerpc
Submitter	: Rogério Brito <rbrito-qczF+2RCDl1fyO9Q7EP/yw@public.gmane.org>
Date		: 2009-03-02 9:43 (2 days old)
References	: http://marc.info/?l=linux-kernel&m=123598702511826&w=4
Handled-By	: Rogério Brito <rbrito-qczF+2RCDl1fyO9Q7EP/yw@public.gmane.org>
Patch		: http://marc.info/?l=linux-kernel&m=123606933628020&w=4

Re: [Bug #12762] Disk errors loop forever in 2.6.29

[James Bottomley]

On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12762
> Subject		: Disk errors loop forever in 2.6.29
> Submitter	: Sitsofe Wheeler <sitsofe-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
> Date		: 2009-02-19 13:53 (13 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b60af5b0adf0da24c673598c8d3fb4d4189a15ce
> References	: http://marc.info/?l=linux-kernel&m=123505185407604&w=4
> Handled-By	: James Bottomley <James.Bottomley-JuX6DAaQMKPCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>
> Patch		: http://marc.info/?l=linux-kernel&m=123508030726900&w=4

In theory, the fix should be upstream here:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=126c098296c8f96cf7f6ca0fdb47265ac7994f00

(not in a released -rc yet, but should be in -rc7).

James

Re: [Bug #12762] Disk errors loop forever in 2.6.29

[Rafael J. Wysocki]

On Tuesday 03 March 2009, James Bottomley wrote:
> On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12762
> > Subject		: Disk errors loop forever in 2.6.29
> > Submitter	: Sitsofe Wheeler <sitsofe-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
> > Date		: 2009-02-19 13:53 (13 days old)
> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b60af5b0adf0da24c673598c8d3fb4d4189a15ce
> > References	: http://marc.info/?l=linux-kernel&m=123505185407604&w=4
> > Handled-By	: James Bottomley <James.Bottomley-JuX6DAaQMKPCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>
> > Patch		: http://marc.info/?l=linux-kernel&m=123508030726900&w=4
> 
> In theory, the fix should be upstream here:
> 
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=126c098296c8f96cf7f6ca0fdb47265ac7994f00
> 
> (not in a released -rc yet, but should be in -rc7).

Thanks, closed.

Rafael

Re: [Bug #12574] possible circular locking dependency detected

[Michael S. Tsirkin]

On Tue, Mar 3, 2009 at 9:25 PM, Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org> wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12574
> Subject         : possible circular locking dependency detected
> Submitter       : Michael S. Tsirkin <m.s.tsirkin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Date            : 2009-01-29 11:35 (34 days old)
> References      : http://lkml.org/lkml/2009/2/9/205
>
>
>

I don't seem to observe this warning in v2.6.29-rc6 anymore.

Re: [Bug #12574] possible circular locking dependency detected

[Rafael J. Wysocki]

On Tuesday 03 March 2009, Michael S. Tsirkin wrote:
> On Tue, Mar 3, 2009 at 9:25 PM, Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org> wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12574
> > Subject         : possible circular locking dependency detected
> > Submitter       : Michael S. Tsirkin <m.s.tsirkin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > Date            : 2009-01-29 11:35 (34 days old)
> > References      : http://lkml.org/lkml/2009/2/9/205
> >
> >
> >
> 
> I don't seem to observe this warning in v2.6.29-rc6 anymore.

OK, I'm going to close it, then.

Thanks,
Rafael

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Zhang Rui]

On Wed, 2009-03-04 at 03:22 +0800, Rafael J. Wysocki wrote:
> 
> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12501
> Subject         : build bug in eeepc-laptop.c
> Submitter       : Ingo Molnar <mingo@elte.hu>
> Date            : 2009-01-14 17:25 (49 days old)
> References      : http://lkml.org/lkml/2009/1/14/315
> 
the problem has already been fixed by
3a5093ee6728c8cbe9c039e685fc1fca8f965048

thanks,
rui

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Ingo Molnar]

* Zhang Rui <rui.zhang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote:

> On Wed, 2009-03-04 at 03:22 +0800, Rafael J. Wysocki wrote:
> > 
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12501
> > Subject         : build bug in eeepc-laptop.c
> > Submitter       : Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
> > Date            : 2009-01-14 17:25 (49 days old)
> > References      : http://lkml.org/lkml/2009/1/14/315
> > 
> the problem has already been fixed by
> 3a5093ee6728c8cbe9c039e685fc1fca8f965048

yes - please consider it fixed.

Thanks,

	Ingo

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Zhang Rui]

On Wed, 2009-03-04 at 03:22 +0800, Rafael J. Wysocki wrote:

> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12705
> Subject         : X200: Brightness broken since 2.6.29-rc4-58-g4c098bc
> Submitter       : Nico Schottelius <nico-linux-20090213@schottelius.org>
> Date            : 2009-02-13 9:33 (19 days old)
> References      : http://marc.info/?l=linux-kernel&m=123451768406825&w=4
> Handled-By      : Len Brown <lenb@kernel.org>
> 

e806b4957412bf472d826bd8cc571da041248799 is first bad commit
commit e806b4957412bf472d826bd8cc571da041248799
Author: Eric Anholt <eric@anholt.net>
Date:   Thu Jan 22 09:56:58 2009 -0800

    drm/i915: Suppress GEM teardown on X Server exit in KMS mode.
    
    Fixes hangs when starting X for the second time.
    
    Signed-off-by: Eric Anholt <eric@anholt.net>
    Signed-off-by: Dave Airlie <airlied@linux.ie>

http://marc.info/?l=linux-kernel&m=123479975503827&w=2

thanks,
rui

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Zhang Rui]

On Wed, 2009-03-04 at 03:22 +0800, Rafael J. Wysocki wrote:

> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12758
> Subject         : ACPI exception with 2.6.29-rc6
> Submitter       : Heinz Diehl <htd-HjJ2MNWy62to6+H+lsi3Gti2O/JbrIOy@public.gmane.org>
> Date            : 2009-02-23 16:46 (9 days old)
> References      : http://marc.info/?l=linux-kernel&m=123540758700861&w=4
> 
Handled by: Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Patch-available:
http://bugzilla.kernel.org/attachment.cgi?id=20368&action=view

not sure if this patch is in len's tree or not.

thanks,
rui

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Nico Schottelius]

[-- Attachment #1: Type: text/plain, Size: 652 bytes --]

Rafael J. Wysocki [Tue, Mar 03, 2009 at 08:25:55PM +0100]:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).

Well, well... nobody really cares about this bug, so it's still
there. Seems this automatic reminder will be persistent until 2.6.30.

Nico

-- 
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/

PGP: BFE4 C736 ABE5 406F 8F42  F7CF B8BE F92A 9885 188C

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 197 bytes --]

Re: [Bug #12501] build bug in eeepc-laptop.c

[Pekka Enberg]

On Tue, Mar 3, 2009 at 9:25 PM, Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org> wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12501
> Subject         : build bug in eeepc-laptop.c
> Submitter       : Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
> Date            : 2009-01-14 17:25 (49 days old)
> References      : http://lkml.org/lkml/2009/1/14/315

There's seems to be a patch for the bug here:

http://bugzilla.kernel.org/attachment.cgi?id=20341&action=view

Re: [Bug #12806] i915 broken STR

[Harvey Harrison]

On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
> Subject		: i915 broken STR
> Submitter	: Harvey Harrison <harvey.harrison-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Date		: 2009-02-28 4:20 (4 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
> References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4
> 

Still present in -rc7, let me know what info you need to help debug.

Harvey

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Maciej Rutecki]

2009/3/3 Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org>:

>
> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12764
> Subject         : Can not ioremap virtual address for G33 hw status page
> Submitter       : Maciej Rutecki <maciej.rutecki@gmail.com>
> Date            : 2009-02-23 14:46 (9 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6fb88588555a18792a27f483887fe1f2af5f9c9b
> References      : http://marc.info/?l=linux-kernel&m=123540053219505&w=4

Problem seems by solved in 2.6.29-rc7

-- 
Maciej Rutecki
http://www.maciek.unixy.pl

Re: [Bug #12574] possible circular locking dependency detected

[Michael S. Tsirkin]

On Tue, Mar 03, 2009 at 11:42:36PM +0100, Rafael J. Wysocki wrote:
> On Tuesday 03 March 2009, Michael S. Tsirkin wrote:
> > On Tue, Mar 3, 2009 at 9:25 PM, Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org> wrote:
> > > This message has been generated automatically as a part of a report
> > > of recent regressions.
> > >
> > > The following bug entry is on the current list of known regressions
> > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > (either way).
> > >
> > >
> > > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12574
> > > Subject         : possible circular locking dependency detected
> > > Submitter       : Michael S. Tsirkin <m.s.tsirkin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > > Date            : 2009-01-29 11:35 (34 days old)
> > > References      : http://lkml.org/lkml/2009/2/9/205
> > >
> > >
> > >
> > 
> > I don't seem to observe this warning in v2.6.29-rc6 anymore.
> 
> OK, I'm going to close it, then.

Spoke too soon.
I see this again on 2.6.29-rc7.

Re: [Bug #12809] iozone regression with 2.6.29-rc6

[Wu Fengguang]

On Tue, Mar 03, 2009 at 09:25:59PM +0200, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12809
> Subject		: iozone regression with 2.6.29-rc6
> Submitter	: Lin Ming <ming.m.lin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Date		: 2009-02-27 9:13 (5 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cf6e7d83bf334cc5916137862c920a97aabc018
> References	: http://marc.info/?l=linux-kernel&m=123572630504360&w=4
> Handled-By	: Wu Fengguang <fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Following Peter's idea of relaxing writeback throttling, Lin Ming
and I tried the idea of totally disabling writeback throttling by
doing benchmarks with the following parameters:

        echo 60 > /proc/sys/vm/dirty_ratio
        echo 50 > /proc/sys/vm/dirty_background_ratio

The result is encouraging: the iozone performance is restored to the
level of 2.6.29-rc5!

We'll continue to evaluate the dirty/throttling numbers with Nick's patch.

Thanks,
Fengguang

Re: [Bug #12762] Disk errors loop forever in 2.6.29

[Sitsofe Wheeler]

On Tue, Mar 03, 2009 at 04:07:29PM -0600, James Bottomley wrote:
> In theory, the fix should be upstream here:
> 
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=126c098296c8f96cf7f6ca0fdb47265ac7994f00
> 
> (not in a released -rc yet, but should be in -rc7).

Yup - just tested -rc7 and the problem is gone. Thanks!

-- 
Sitsofe | http://sucs.org/~sits/

Re: [Bug #12806] i915 broken STR

[Harvey Harrison]

On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
> Subject		: i915 broken STR
> Submitter	: Harvey Harrison <harvey.harrison-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Date		: 2009-02-28 4:20 (4 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
> References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4
> 
> 

This looks to have been a case of old-userspace..upgrading to
xorg-intel-video 2.6.1 (ubuntu Jaunty Alpha5) fixes STR here.

Harvey

Re: [Bug #12806] i915 broken STR

[Rafael J. Wysocki]

On Saturday 07 March 2009, Harvey Harrison wrote:
> On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
> > Subject		: i915 broken STR
> > Submitter	: Harvey Harrison <harvey.harrison-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > Date		: 2009-02-28 4:20 (4 days old)
> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
> > References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4
> > 
> > 
> 
> This looks to have been a case of old-userspace..upgrading to
> xorg-intel-video 2.6.1 (ubuntu Jaunty Alpha5) fixes STR here.

Well, thanks, but I'm not really sure if this is a good news.

Jesse, Eric, does it mean we now break resume on anything earlier than 2.6.1
on the Harvey's hardware?

Rafael

Re: [Bug #12501] build bug in eeepc-laptop.c

[Rafael J. Wysocki]

On Wednesday 04 March 2009, Pekka Enberg wrote:
> On Tue, Mar 3, 2009 at 9:25 PM, Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org> wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12501
> > Subject         : build bug in eeepc-laptop.c
> > Submitter       : Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
> > Date            : 2009-01-14 17:25 (49 days old)
> > References      : http://lkml.org/lkml/2009/1/14/315
> 
> There's seems to be a patch for the bug here:
> 
> http://bugzilla.kernel.org/attachment.cgi?id=20341&action=view

Thanks, updated.

Rafael

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

On Wednesday 04 March 2009, Nico Schottelius wrote:
> Rafael J. Wysocki [Tue, Mar 03, 2009 at 08:25:55PM +0100]:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> 
> Well, well... nobody really cares about this bug, so it's still
> there. Seems this automatic reminder will be persistent until 2.6.30.

Well, thanks for the update.

Rafael

Re: [Bug #12809] iozone regression with 2.6.29-rc6

[Rafael J. Wysocki]

On Thursday 05 March 2009, Wu Fengguang wrote:
> On Tue, Mar 03, 2009 at 09:25:59PM +0200, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12809
> > Subject		: iozone regression with 2.6.29-rc6
> > Submitter	: Lin Ming <ming.m.lin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> > Date		: 2009-02-27 9:13 (5 days old)
> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cf6e7d83bf334cc5916137862c920a97aabc018
> > References	: http://marc.info/?l=linux-kernel&m=123572630504360&w=4
> > Handled-By	: Wu Fengguang <fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> 
> Following Peter's idea of relaxing writeback throttling, Lin Ming
> and I tried the idea of totally disabling writeback throttling by
> doing benchmarks with the following parameters:
> 
>         echo 60 > /proc/sys/vm/dirty_ratio
>         echo 50 > /proc/sys/vm/dirty_background_ratio
> 
> The result is encouraging: the iozone performance is restored to the
> level of 2.6.29-rc5!
> 
> We'll continue to evaluate the dirty/throttling numbers with Nick's patch.

Thanks for the update.

Rafael

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Rafael J. Wysocki]

On Wednesday 04 March 2009, Zhang Rui wrote:
> On Wed, 2009-03-04 at 03:22 +0800, Rafael J. Wysocki wrote:
> > 
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12501
> > Subject         : build bug in eeepc-laptop.c
> > Submitter       : Ingo Molnar <mingo@elte.hu>
> > Date            : 2009-01-14 17:25 (49 days old)
> > References      : http://lkml.org/lkml/2009/1/14/315
> > 
> the problem has already been fixed by
> 3a5093ee6728c8cbe9c039e685fc1fca8f965048

Thanks, closed.

Rafael

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Rafael J. Wysocki]

On Wednesday 04 March 2009, Zhang Rui wrote:
> On Wed, 2009-03-04 at 03:22 +0800, Rafael J. Wysocki wrote:
> 
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12705
> > Subject         : X200: Brightness broken since 2.6.29-rc4-58-g4c098bc
> > Submitter       : Nico Schottelius <nico-linux-20090213-xuaVFQXs+5hIG4jRRZ66WA@public.gmane.org>
> > Date            : 2009-02-13 9:33 (19 days old)
> > References      : http://marc.info/?l=linux-kernel&m=123451768406825&w=4
> > Handled-By      : Len Brown <lenb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> > 
> 
> e806b4957412bf472d826bd8cc571da041248799 is first bad commit
> commit e806b4957412bf472d826bd8cc571da041248799
> Author: Eric Anholt <eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
> Date:   Thu Jan 22 09:56:58 2009 -0800
> 
>     drm/i915: Suppress GEM teardown on X Server exit in KMS mode.
>     
>     Fixes hangs when starting X for the second time.
>     
>     Signed-off-by: Eric Anholt <eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
>     Signed-off-by: Dave Airlie <airlied-cv59FeDIM0c@public.gmane.org>
> 
> http://marc.info/?l=linux-kernel&m=123479975503827&w=2

Thanks, updated.

Rafael

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Rafael J. Wysocki]

On Wednesday 04 March 2009, Zhang Rui wrote:
> On Wed, 2009-03-04 at 03:22 +0800, Rafael J. Wysocki wrote:
> 
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12758
> > Subject         : ACPI exception with 2.6.29-rc6
> > Submitter       : Heinz Diehl <htd@fancy-poultry.org>
> > Date            : 2009-02-23 16:46 (9 days old)
> > References      : http://marc.info/?l=linux-kernel&m=123540758700861&w=4
> > 
> Handled by: Len Brown <len.brown@intel.com>
> Patch-available:
> http://bugzilla.kernel.org/attachment.cgi?id=20368&action=view
> 
> not sure if this patch is in len's tree or not.

Thanks, updated.

Rafael

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Rafael J. Wysocki]

On Wednesday 04 March 2009, Maciej Rutecki wrote:
> 2009/3/3 Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org>:
> 
> >
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12764
> > Subject         : Can not ioremap virtual address for G33 hw status page
> > Submitter       : Maciej Rutecki <maciej.rutecki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > Date            : 2009-02-23 14:46 (9 days old)
> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6fb88588555a18792a27f483887fe1f2af5f9c9b
> > References      : http://marc.info/?l=linux-kernel&m=123540053219505&w=4
> 
> Problem seems by solved in 2.6.29-rc7

Thanks, closed.

Rafael

Re: [Bug #12501] build bug in eeepc-laptop.c

[Johannes Weiner]

On Sat, Mar 07, 2009 at 10:31:30PM +0100, Rafael J. Wysocki wrote:
> On Wednesday 04 March 2009, Pekka Enberg wrote:
> > On Tue, Mar 3, 2009 at 9:25 PM, Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org> wrote:
> > > This message has been generated automatically as a part of a report
> > > of recent regressions.
> > >
> > > The following bug entry is on the current list of known regressions
> > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > (either way).
> > >
> > >
> > > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12501
> > > Subject         : build bug in eeepc-laptop.c
> > > Submitter       : Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
> > > Date            : 2009-01-14 17:25 (49 days old)
> > > References      : http://lkml.org/lkml/2009/1/14/315
> > 
> > There's seems to be a patch for the bug here:
> > 
> > http://bugzilla.kernel.org/attachment.cgi?id=20341&action=view
> 
> Thanks, updated.

This fix is upstream: 3a5093ee6728c8cbe9c039e685fc1fca8f965048

Re: [Bug #12806] i915 broken STR

[Eric Anholt]

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On Sat, 2009-03-07 at 22:28 +0100, Rafael J. Wysocki wrote:
> On Saturday 07 March 2009, Harvey Harrison wrote:
> > On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> > > This message has been generated automatically as a part of a report
> > > of recent regressions.
> > > 
> > > The following bug entry is on the current list of known regressions
> > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > (either way).
> > > 
> > > 
> > > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
> > > Subject		: i915 broken STR
> > > Submitter	: Harvey Harrison <harvey.harrison@gmail.com>
> > > Date		: 2009-02-28 4:20 (4 days old)
> > > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
> > > References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4
> > > 
> > > 
> > 
> > This looks to have been a case of old-userspace..upgrading to
> > xorg-intel-video 2.6.1 (ubuntu Jaunty Alpha5) fixes STR here.
> 
> Well, thanks, but I'm not really sure if this is a good news.
> 
> Jesse, Eric, does it mean we now break resume on anything earlier than 2.6.1
> on the Harvey's hardware?

There's not much information (dmesg, Xorg.0.log) with this bug -- I'm
guessing he's using KMS, given that that commit was where the problems
started.  If so, yes, you really do need good userland for KMS to work.

-- 
Eric Anholt
eric@anholt.net                         eric.anholt@intel.com



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Re: [Bug #12806] i915 broken STR

[Harvey Harrison]

On Mon, 2009-03-09 at 19:23 -0700, Eric Anholt wrote:
> On Sat, 2009-03-07 at 22:28 +0100, Rafael J. Wysocki wrote:
> > On Saturday 07 March 2009, Harvey Harrison wrote:
> > > On > > This looks to have been a case of old-userspace..upgrading to
> > > xorg-intel-video 2.6.1 (ubuntu Jaunty Alpha5) fixes STR here.
> > 
> > Well, thanks, but I'm not really sure if this is a good news.
> > 
> > Jesse, Eric, does it mean we now break resume on anything earlier than 2.6.1
> > on the Harvey's hardware?
> 
> There's not much information (dmesg, Xorg.0.log) with this bug -- I'm
> guessing he's using KMS, given that that commit was where the problems
> started.  If so, yes, you really do need good userland for KMS to work.
> 

Yep, turns out I had KMS turned on in my config...I thought I'd disabled
it, sorry for the noise.

Harvey

Re: [Bug #12806] i915 broken STR

[Rafael J. Wysocki]

On Tuesday 10 March 2009, Eric Anholt wrote:
> On Sat, 2009-03-07 at 22:28 +0100, Rafael J. Wysocki wrote:
> > On Saturday 07 March 2009, Harvey Harrison wrote:
> > > On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> > > > This message has been generated automatically as a part of a report
> > > > of recent regressions.
> > > > 
> > > > The following bug entry is on the current list of known regressions
> > > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > > (either way).
> > > > 
> > > > 
> > > > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
> > > > Subject		: i915 broken STR
> > > > Submitter	: Harvey Harrison <harvey.harrison-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > > > Date		: 2009-02-28 4:20 (4 days old)
> > > > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
> > > > References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4
> > > > 
> > > > 
> > > 
> > > This looks to have been a case of old-userspace..upgrading to
> > > xorg-intel-video 2.6.1 (ubuntu Jaunty Alpha5) fixes STR here.
> > 
> > Well, thanks, but I'm not really sure if this is a good news.
> > 
> > Jesse, Eric, does it mean we now break resume on anything earlier than 2.6.1
> > on the Harvey's hardware?
> 
> There's not much information (dmesg, Xorg.0.log) with this bug -- I'm
> guessing he's using KMS, given that that commit was where the problems
> started.  If so, yes, you really do need good userland for KMS to work.

BTW, Is suspend generally supposed to work with KMS and the 2.6.1 (or later) X
driver?

Rafael

Re: [Bug #12806] i915 broken STR

[Eric Anholt]

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On Tue, 2009-03-10 at 14:56 +0100, Rafael J. Wysocki wrote:
> On Tuesday 10 March 2009, Eric Anholt wrote:
> > On Sat, 2009-03-07 at 22:28 +0100, Rafael J. Wysocki wrote:
> > > On Saturday 07 March 2009, Harvey Harrison wrote:
> > > > On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> > > > > This message has been generated automatically as a part of a report
> > > > > of recent regressions.
> > > > > 
> > > > > The following bug entry is on the current list of known regressions
> > > > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > > > (either way).
> > > > > 
> > > > > 
> > > > > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
> > > > > Subject		: i915 broken STR
> > > > > Submitter	: Harvey Harrison <harvey.harrison-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > > > > Date		: 2009-02-28 4:20 (4 days old)
> > > > > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
> > > > > References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4
> > > > > 
> > > > > 
> > > > 
> > > > This looks to have been a case of old-userspace..upgrading to
> > > > xorg-intel-video 2.6.1 (ubuntu Jaunty Alpha5) fixes STR here.
> > > 
> > > Well, thanks, but I'm not really sure if this is a good news.
> > > 
> > > Jesse, Eric, does it mean we now break resume on anything earlier than 2.6.1
> > > on the Harvey's hardware?
> > 
> > There's not much information (dmesg, Xorg.0.log) with this bug -- I'm
> > guessing he's using KMS, given that that commit was where the problems
> > started.  If so, yes, you really do need good userland for KMS to work.
> 
> BTW, Is suspend generally supposed to work with KMS and the 2.6.1 (or later) X
> driver?

I pulled a giant pile of KMS bugfixes into 2.6.2, so I'm not sure about
2.6.1.

We've still got some work to do with making our suspend/resume path
really complete for KMS.  We're missing some register setup that UMS
does, so behavior can be a bit random.  The current plan is to switch to
using the KMS modeset paths for resume, so we hopefully have reliable
(or at least consistent) mode setting behavior, and then fill those
remaining register writes in around it.  Basically, a separate
suspend/resume path for KMS, when we have full control of the device.

-- 
Eric Anholt
eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org                         eric.anholt-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org



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Re: [Bug #12806] i915 broken STR

[Rafael J. Wysocki]

On Tuesday 10 March 2009, Eric Anholt wrote:
> On Tue, 2009-03-10 at 14:56 +0100, Rafael J. Wysocki wrote:
> > On Tuesday 10 March 2009, Eric Anholt wrote:
> > > On Sat, 2009-03-07 at 22:28 +0100, Rafael J. Wysocki wrote:
> > > > On Saturday 07 March 2009, Harvey Harrison wrote:
> > > > > On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> > > > > > This message has been generated automatically as a part of a report
> > > > > > of recent regressions.
> > > > > > 
> > > > > > The following bug entry is on the current list of known regressions
> > > > > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > > > > (either way).
> > > > > > 
> > > > > > 
> > > > > > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
> > > > > > Subject		: i915 broken STR
> > > > > > Submitter	: Harvey Harrison <harvey.harrison-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > > > > > Date		: 2009-02-28 4:20 (4 days old)
> > > > > > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
> > > > > > References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4
> > > > > > 
> > > > > > 
> > > > > 
> > > > > This looks to have been a case of old-userspace..upgrading to
> > > > > xorg-intel-video 2.6.1 (ubuntu Jaunty Alpha5) fixes STR here.
> > > > 
> > > > Well, thanks, but I'm not really sure if this is a good news.
> > > > 
> > > > Jesse, Eric, does it mean we now break resume on anything earlier than 2.6.1
> > > > on the Harvey's hardware?
> > > 
> > > There's not much information (dmesg, Xorg.0.log) with this bug -- I'm
> > > guessing he's using KMS, given that that commit was where the problems
> > > started.  If so, yes, you really do need good userland for KMS to work.
> > 
> > BTW, Is suspend generally supposed to work with KMS and the 2.6.1 (or later) X
> > driver?
> 
> I pulled a giant pile of KMS bugfixes into 2.6.2, so I'm not sure about
> 2.6.1.
> 
> We've still got some work to do with making our suspend/resume path
> really complete for KMS.  We're missing some register setup that UMS
> does, so behavior can be a bit random.  The current plan is to switch to
> using the KMS modeset paths for resume, so we hopefully have reliable
> (or at least consistent) mode setting behavior, and then fill those
> remaining register writes in around it.  Basically, a separate
> suspend/resume path for KMS, when we have full control of the device.

OK, thanks.

Best,
Rafael

[Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
Date		: 2009-01-21 7:15 (53 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4
Handled-By	: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Patch		: http://lkml.org/lkml/2009/2/16/78

[Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
Date		: 2009-01-21 7:15 (60 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4
Handled-By	: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Patch		: http://lkml.org/lkml/2009/2/16/78

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Len Brown]

On Sat, 7 Mar 2009, Rafael J. Wysocki wrote:

> On Wednesday 04 March 2009, Nico Schottelius wrote:
> > Rafael J. Wysocki [Tue, Mar 03, 2009 at 08:25:55PM +0100]:
> > > This message has been generated automatically as a part of a report
> > > of recent regressions.
> > > 
> > > The following bug entry is on the current list of known regressions
> > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > (either way).
> > 
> > Well, well... nobody really cares about this bug, so it's still
> > there. Seems this automatic reminder will be persistent until 2.6.30.
> 
> Well, thanks for the update.

It is a DRI bug, assigned to   	
Eric Anholt -- I'm not handling it.


thanks,
Len Brown, Intel Open Source Technology Center

Re: 2.6.29-rc6-git7: Reported regressions from 2.6.28

[Len Brown]

On Sat, 7 Mar 2009, Rafael J. Wysocki wrote:

> On Wednesday 04 March 2009, Zhang Rui wrote:
> > On Wed, 2009-03-04 at 03:22 +0800, Rafael J. Wysocki wrote:
> > 
> > > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12758
> > > Subject         : ACPI exception with 2.6.29-rc6
> > > Submitter       : Heinz Diehl <htd-HjJ2MNWy62to6+H+lsi3Gti2O/JbrIOy@public.gmane.org>
> > > Date            : 2009-02-23 16:46 (9 days old)
> > > References      : http://marc.info/?l=linux-kernel&m=123540758700861&w=4
> > > 
> > Handled by: Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> > Patch-available:
> > http://bugzilla.kernel.org/attachment.cgi?id=20368&action=view
> > 
> > not sure if this patch is in len's tree or not.
> 
> Thanks, updated.


per the bug report, this shipped in 2.6.29-rc8:

commit 7b46ecd5fcebf381a7bde966db352d8fb1b8e944
Author: Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date:   Wed Feb 25 18:00:18 2009 -0500

    Revert "ACPI: make some IO ports off-limits to AML"

[Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12667
Subject		: Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
Submitter	: Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org>
Date		: 2009-01-21 7:15 (76 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
References	: http://marc.info/?l=linux-kernel&m=123252215315106&w=4
Handled-By	: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Patch		: http://lkml.org/lkml/2009/2/16/78