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Old 04-06-2011, 03:22 PM
Andrew Haley
 
Default How to debug a broken suspend/hibernate ?

Under Fedora 14, my computer, an Asus U31J, cannot suspend/hibernate.
It attempts both, but hangs and has to be hard powered off. (I have
only tried F14.)

How do you debug something like this? I guess I'd need to have some
tracing through the shutdown sequence to understand where it stops.

Andrew.
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Old 04-06-2011, 04:01 PM
Jaroslav Skarvada
 
Default How to debug a broken suspend/hibernate ?

----- Original Message -----
> Under Fedora 14, my computer, an Asus U31J, cannot suspend/hibernate.
> It attempts both, but hangs and has to be hard powered off. (I have
> only tried F14.)
>
> How do you debug something like this? I guess I'd need to have some
> tracing through the shutdown sequence to understand where it stops.
>
> Andrew.
> --
> devel mailing list
> devel@lists.fedoraproject.org
> https://admin.fedoraproject.org/mailman/listinfo/devel

In case you used the pm-utils, consult the logs:
/var/log/pm-powersave.log
/var/log/pm-suspend.log

There is also script that can present you interesting information:
# pm-utils-bugreport-info.sh

something useful can be also found in syslog:
/var/log/messages

Test suspend from runlevels 3, 5 by:
# pm-suspend
and also directly through sys interface:
# echo mem > /sys/power/state

If the last one fails from runlevel 3 it is probably the kernel
and it will require more advanced debugging.

Please file bug about it. And also please try the F15, there are
various improvements

regards

Jaroslav *karvada
SIG/PowerManagement
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Old 04-06-2011, 04:35 PM
Andrew Haley
 
Default How to debug a broken suspend/hibernate ?

On 04/06/2011 05:01 PM, Jaroslav Skarvada wrote:
> ----- Original Message -----
>> Under Fedora 14, my computer, an Asus U31J, cannot suspend/hibernate.
>> It attempts both, but hangs and has to be hard powered off. (I have
>> only tried F14.)
>>
>> How do you debug something like this? I guess I'd need to have some
>> tracing through the shutdown sequence to understand where it stops.
>
> In case you used the pm-utils, consult the logs:
> /var/log/pm-powersave.log
> /var/log/pm-suspend.log
>
> There is also script that can present you interesting information:
> # pm-utils-bugreport-info.sh
>
> something useful can be also found in syslog:
> /var/log/messages
>
> Test suspend from runlevels 3, 5 by:
> # pm-suspend
> and also directly through sys interface:
> # echo mem > /sys/power/state
>
> If the last one fails from runlevel 3 it is probably the kernel
> and it will require more advanced debugging.

That's how it looks. The machine clearly tries to suspend, but after
a while the fan comes on at full power, so I suppose the processor is
stuck in a tight loop.

> Please file bug about it. And also please try the F15, there are
> various improvements

OK, I will. Thanks.

Andrew.
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Old 04-06-2011, 05:30 PM
Andrew Haley
 
Default How to debug a broken suspend/hibernate ?

On 04/06/2011 05:35 PM, Andrew Haley wrote:
> On 04/06/2011 05:01 PM, Jaroslav Skarvada wrote:
>
>> Please file bug about it. And also please try the F15, there are
>> various improvements
>
> OK, I will. Thanks.

https://bugzilla.redhat.com/show_bug.cgi?id=694191

The bug is still present in fedora 15.

Andrew.
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