Re: pm-suspend working, but pm-hibernate fails

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Thursday 25 February 2010, Ákos Maróy wrote:
> Rafael,
> 
> > Please try
> > 
> > # echo core > /sys/power/pm_test
> > # echo disk > /sys/power/state
> > 
> > That should return to the command prompt after ~5 sec.
> 
> thanks. indeed, it does return, this is what I get in /var/log/messages:
> 
> Feb 25 23:46:24 tonkachi kernel: [   77.846865] PM: Syncing filesystems
> ... done.
> Feb 25 23:46:24 tonkachi kernel: [   77.997120] Freezing user space
> processes ... (elapsed 0.00 seconds) done.
> Feb 25 23:46:24 tonkachi kernel: [   77.998042] Freezing remaining
> freezable tasks ... (elapsed 0.00 seconds) done.
> Feb 25 23:46:24 tonkachi kernel: [   77.998269] PM: Preallocating image
> memory... done (allocated 1936029 pages)
> Feb 25 23:46:24 tonkachi kernel: [   80.480913] PM: Allocated 7744116
> kbytes in 2.48 seconds (3122.62 MB/s)
> Feb 25 23:46:24 tonkachi kernel: [   80.480918] Suspending console(s)
> (use no_console_suspend to debug)
> Feb 25 23:46:24 tonkachi kernel: [   81.030959] Registered led device:
> iwl-phy0::radio
> Feb 25 23:46:24 tonkachi kernel: [   81.030989] Registered led device:
> iwl-phy0::assoc
> Feb 25 23:46:24 tonkachi kernel: [   81.031016] Registered led device:
> iwl-phy0::RX
> Feb 25 23:46:24 tonkachi kernel: [   81.031041] Registered led device:
> iwl-phy0::TX
> Feb 25 23:46:24 tonkachi kernel: [   81.166877] Restarting tasks ...
> Feb 25 23:46:24 tonkachi kernel: [   81.169743] done.
> 
> 
> my dmesg is much more talkative - please find it attached.

Hmm.  Then perhaps you need this patch:
http://patchwork.kernel.org/patch/81830/

Rafael