* Failure to wake from S2D
@ 2015-04-16 9:47 Heinz Diehl
2015-04-17 1:02 ` Zhang, Rui
0 siblings, 1 reply; 4+ messages in thread
From: Heinz Diehl @ 2015-04-16 9:47 UTC (permalink / raw)
To: linux-pm
Hi,
about 3-4 times out of 10, my system doesn't wake from S2D. S2R works
flawlessly. The only documentation I have is a screenshot when the system hangs
(hard reset required), due to "no_console_suspend=1".
The screendump is here:
http://www.fritha.org/dump.jpg
The dump shows the output running kernel 4.0.0-rc5, but the same output is
present using 3.19.x or 4.0.0 final.
Booting with "maxcpus=1" resolves the problem, but that can't be a serious
option on a multicore Xeon. The mainboard is an Asus H97-Pro with the latest
BIOS.
Thanks,
Heinz.
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: Failure to wake from S2D
2015-04-16 9:47 Failure to wake from S2D Heinz Diehl
@ 2015-04-17 1:02 ` Zhang, Rui
2015-04-17 6:23 ` Heinz Diehl
0 siblings, 1 reply; 4+ messages in thread
From: Zhang, Rui @ 2015-04-17 1:02 UTC (permalink / raw)
To: Heinz Diehl, linux-pm
> -----Original Message-----
> From: linux-pm-owner@vger.kernel.org [mailto:linux-pm-
> owner@vger.kernel.org] On Behalf Of Heinz Diehl
> Sent: Thursday, April 16, 2015 5:48 PM
> To: linux-pm@vger.kernel.org
> Subject: Failure to wake from S2D
>
> Hi,
>
> about 3-4 times out of 10, my system doesn't wake from S2D. S2R works
> flawlessly. The only documentation I have is a screenshot when the system
> hangs (hard reset required), due to "no_console_suspend=1".
>
> The screendump is here:
> http://www.fritha.org/dump.jpg
>
> The dump shows the output running kernel 4.0.0-rc5, but the same output is
> present using 3.19.x or 4.0.0 final.
>
Have you checked any earlier kernel versions?
> Booting with "maxcpus=1" resolves the problem, but that can't be a serious
> option on a multicore Xeon. The mainboard is an Asus H97-Pro with the latest
> BIOS.
Does the problem still existing when using idle=poll?
What cpuidle driver are you using?
Please file a bug report at https://bugzilla.kernel.org/enter_bug.cgi?product=Power%20Management
With the test result after using boot option "idle=poll"
Thanks,
rui
>
> Thanks,
> Heinz.
>
>
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Failure to wake from S2D
2015-04-17 1:02 ` Zhang, Rui
@ 2015-04-17 6:23 ` Heinz Diehl
2015-04-17 6:56 ` Heinz Diehl
0 siblings, 1 reply; 4+ messages in thread
From: Heinz Diehl @ 2015-04-17 6:23 UTC (permalink / raw)
To: Zhang, Rui; +Cc: linux-pm
On 17.04.2015, Zhang, Rui wrote:
> Have you checked any earlier kernel versions?
No. Every hang means fs corruption, and this is a production machine.
At least some of the 3.19.x series shows the same behaviour.
> Does the problem still existing when using idle=poll?
Yes, it does.
> What cpuidle driver are you using?
[htd@chiara ~]$ cat /sys/devices/system/cpu/cpuidle/current_driver
intel_idle
> Please file a bug report at https://bugzilla.kernel.org/enter_bug.cgi?product=Power%20Management
> With the test result after using boot option "idle=poll"
Will do. However, idle=poll is not a permanent option on this system, since it
significantly increases heat and power consumption.
Thanks,
Heinz.
--
OpenPGP Fingerprint: 531E 8E75 4395 ED38 CEC2 FD75 A1EB 6944 60F4 A92C
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Failure to wake from S2D
2015-04-17 6:23 ` Heinz Diehl
@ 2015-04-17 6:56 ` Heinz Diehl
0 siblings, 0 replies; 4+ messages in thread
From: Heinz Diehl @ 2015-04-17 6:56 UTC (permalink / raw)
To: linux-pm; +Cc: Zhang, Rui
On 17.04.2015, Heinz Diehl wrote:
> > Please file a bug report at https://bugzilla.kernel.org/enter_bug.cgi?product=Power%20Management
> > With the test result after using boot option "idle=poll"
> Will do. However, idle=poll is not a permanent option on this system, since it
> significantly increases heat and power consumption.
FWIW: here's a screendump from where it hangs with "idle=poll":
https://bugzilla.kernel.org/attachment.cgi?id=174251
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-04-17 6:56 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2015-04-16 9:47 Failure to wake from S2D Heinz Diehl
2015-04-17 1:02 ` Zhang, Rui
2015-04-17 6:23 ` Heinz Diehl
2015-04-17 6:56 ` Heinz Diehl
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