* Warnings about tasks on CPU 1 during STR
@ 2010-01-25 4:42 Frans Pop
0 siblings, 0 replies; 3+ messages in thread
From: Frans Pop @ 2010-01-25 4:42 UTC (permalink / raw)
To: linux-kernel; +Cc: linux-pm
With 2.6.33-rc5 during suspend to RAM I'm getting a bunch of warnings
I've not seen with earlier kernel versions:
PM: late suspend of devices complete after 28.784 msecs
ACPI: Preparing to enter system sleep state S3
Disabling non-boot CPUs ...
CPU 1 is now offline
SMP alternatives: switching to UP code
Task events/1 (pid = 10) is on cpu 1 (state = 1, flags = 84208040)
Task khelper (pid = 11) is on cpu 1 (state = 1, flags = 80208040)
Task sync_supers (pid = 77) is on cpu 1 (state = 1, flags = 80208040)
Task bdi-default (pid = 79) is on cpu 1 (state = 2, flags = 80a15040)
Task kblockd/1 (pid = 81) is on cpu 1 (state = 1, flags = 84208040)
[...]
Task pm-suspend (pid = 29782) is on cpu 1 (state = 2, flags = 414000)
Extended CMOS year: 2000
Back to C!
All the "Task X is on cpu 1" messages (76 in total) are new. Bug or
intentional? As it is a warning, I suspect a bug.
Cheers,
FJP
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Warnings about tasks on CPU 1 during STR
[not found] <201001250542.08642.elendil@planet.nl>
@ 2010-01-25 12:50 ` Peter Zijlstra
2010-01-25 13:52 ` Frans Pop
0 siblings, 1 reply; 3+ messages in thread
From: Peter Zijlstra @ 2010-01-25 12:50 UTC (permalink / raw)
To: Frans Pop; +Cc: linux-pm, linux-kernel
On Mon, 2010-01-25 at 05:42 +0100, Frans Pop wrote:
> With 2.6.33-rc5 during suspend to RAM I'm getting a bunch of warnings
> I've not seen with earlier kernel versions:
>
> PM: late suspend of devices complete after 28.784 msecs
> ACPI: Preparing to enter system sleep state S3
> Disabling non-boot CPUs ...
> CPU 1 is now offline
> SMP alternatives: switching to UP code
> Task events/1 (pid = 10) is on cpu 1 (state = 1, flags = 84208040)
> Task khelper (pid = 11) is on cpu 1 (state = 1, flags = 80208040)
> Task sync_supers (pid = 77) is on cpu 1 (state = 1, flags = 80208040)
> Task bdi-default (pid = 79) is on cpu 1 (state = 2, flags = 80a15040)
> Task kblockd/1 (pid = 81) is on cpu 1 (state = 1, flags = 84208040)
> [...]
> Task pm-suspend (pid = 29782) is on cpu 1 (state = 2, flags = 414000)
> Extended CMOS year: 2000
> Back to C!
>
> All the "Task X is on cpu 1" messages (76 in total) are new. Bug or
> intentional? As it is a warning, I suspect a bug.
http://lkml.org/lkml/2010/1/21/175
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Warnings about tasks on CPU 1 during STR
2010-01-25 12:50 ` Warnings about tasks on CPU 1 during STR Peter Zijlstra
@ 2010-01-25 13:52 ` Frans Pop
0 siblings, 0 replies; 3+ messages in thread
From: Frans Pop @ 2010-01-25 13:52 UTC (permalink / raw)
To: Peter Zijlstra; +Cc: linux-pm, linux-kernel
On Monday 25 January 2010, Peter Zijlstra wrote:
> On Mon, 2010-01-25 at 05:42 +0100, Frans Pop wrote:
> > All the "Task X is on cpu 1" messages (76 in total) are new. Bug or
> > intentional? As it is a warning, I suspect a bug.
>
> http://lkml.org/lkml/2010/1/21/175
Thanks Peter, that fixes it.
I've a small cleanup patch for the warning that I'll send separately.
Cheers,
FJP
^ permalink raw reply [flat|nested] 3+ messages in thread
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