Re: [warn_once] warning: at kernel/hrtimer.c:625 hres_timers_resume+0x24/0x38()

[Alexey Klimov <klimov.linux@gmail.com>]

Hello, Rafael

On Wed, Apr 29, 2009 at 11:47 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> On Wednesday 29 April 2009, Alexey Klimov wrote:
>> Hello,
>>
>> On Tue, Apr 28, 2009 at 1:35 AM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
>> > On Sunday 19 April 2009, Alexey Klimov wrote:
>> >> Hello all
>> >> When testing behaviour of radio-mr800 drvier when doing suspend/resume
>> >> to disk, using echo disk > /sys/power/state i have such warning in
>> >> dmesg(see below please).
>> >> Kernel is 30-rc2, up-to-date. If you need more information, feel free to ask.
>> >
>> > Can you please retest with the appended patch applied and report back?
>>
>> Of course. I applied your patch against up-to-date sources (30-rc3),
>> and have more messages after resume:
>
> Thanks!
>
>> ACPI: Preparing to enter system sleep state S4
>> PM: Saving platform NVS memory
>> ------------[ cut here ]------------
>> WARNING: at drivers/base/sys.c:405 sysdev_suspend+0xb6/0x21c()
>> Hardware name: TravelMate 2350
>> Interrupts enabled after cpufreq_suspend+0x0/0x113
>
> Well, it looks like cpufreq_suspend() left us with interrupts enabled and
> that caused the other warnings to be printed.  Not nice.
>
> What CPU is there in your box?
>
> Rafael

Yes, cpufreq_ondemand enabled. It's 1.7 GHz pentium-m. The lowest
frequency is 600 MHz.
Here is my /proc/cpuinfo:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Pentium(R) M processor 1.70GHz
stepping        : 6
cpu MHz         : 600.000
cache size      : 2048 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr mce cx8 apic sep mtrr pge mca
cmov clflush dts acpi mmx fxsr sse sse2 ss tm pbe bts est tm2
bogomips        : 1198.79
clflush size    : 64
power management:


-- 
Best regards, Klimov Alexey