Hi,

I just installed powersaved on my Debian testing system. My kernel supports suspend to disk via swsusp, and it used to work (and still works) fine if I suspend the system using the "hibernate" command. If
I try to suspend it with powersave, however, the system will suspend as usual. During the reboot, however, it will at some point display

Restarting tasks...

and at that point, it hangs. Not even the "magic SysRq keys" work any more.

I already tried to copy the modules blacklist from hibernate, but it did not help.

Unfortunately, the system hangs before it can write to any log files. FYI, I attached the
/var/log/suspend2disk.log

Any ideas?

Thanks a lot in advance,

Norbert

$ cat /var/log/suspend2disk.log

suspend2disk initiated: 2006-07-23 02:15:51
Debug info follows here, please include in your bug reports. Thanks.
--------------------------------------------------------------------
Loaded modules:
Module                  Size  Used by
cpufreq_ondemand        5276  1
cpufreq_userspace       3672  0
powernow_k7             7144  0
rfcomm                 34328  1
l2cap                  20484  5 rfcomm
bluetooth              41572  4 rfcomm,l2cap
ntfs                  222864  0
nls_base                6272  1 ntfs
eth1394                17608  0
pcmcia                 25560  0
firmware_class          8128  1 pcmcia
8139cp                 17024  0
ide_cd                 38148  0
8139too                22272  0
rtc                     9908  0
crc32                   3968  3 pcmcia,8139cp,8139too
cdrom                  37920  1 ide_cd
yenta_socket           25356  2
rsrc_nonstatic         11840  1 yenta_socket
pcmcia_core            36112  3 pcmcia,yenta_socket,rsrc_nonstatic
via_agp                 7936  1
shpchp                 43584  0
pci_hotplug            24628  1 shpchp
parport_pc             26756  0
parport                20416  1 parport_pc
ohci1394               31988  0
ieee1394               90232  2 eth1394,ohci1394
floppy                 57348  0
8250_pnp                8320  0
8250                   19924  1 8250_pnp
serial_core            17536  1 8250

Memory info:
             total       used       free     shared    buffers     cached
Mem:        516080     160380     355700          0      29704      75928
-/+ buffers/cache:      54748     461332
Swap:       489940          0     489940

/proc/cmdline: BOOT_IMAGE=Linux-2.6.15 ro root=305 resume=/dev/hda7
------------------------------------------------------------------------------
========we are going to sleep, preparing.========
no kernelfile matching the running kernel found
running kernel: '2.6.15', (probably) booting kernel: '2.6.15'
== checking runlevel ==
  no shutdown/reboot in progress, good.
== Unmounting FAT/NTFS filesystems: ==
  none found in /etc/mtab
== FAT/NTFS filesystems unmounted ==
Stopping services: ('slmodemd irda upsd apcupsd' configured)
stopping slmodemd:
##  /usr/lib/powersave/scripts//sleep_helper_functions: line 372: /etc/init.d/slmodemd: No such file or directory
stopping irda:
##  /usr/lib/powersave/scripts//sleep_helper_functions: line 372: /etc/init.d/irda: No such file or directory
stopping upsd:
##  /usr/lib/powersave/scripts//sleep_helper_functions: line 372: /etc/init.d/upsd: No such file or directory
stopping apcupsd:
##  /usr/lib/powersave/scripts//sleep_helper_functions: line 372: /etc/init.d/apcupsd: No such file or directory

------------------------------------------------------------------------------
Unloading modules: ('usb_storage sbp2 ohci_hcd uhci_hcd stir4200 ohci1394 ipw2200 rt2500 prism54 ath_pci r8169 lt_modem Intel536 Intel537 ndiswrapper' configured)
checking usb_storage
checking sbp2
checking ohci_hcd
checking uhci_hcd
checking stir4200
checking ohci1394
# trying to unload: ohci1394
unloaded: ohci1394
checking ipw2200
checking rt2500
checking prism54
checking ath_pci
checking r8169
checking lt_modem
checking Intel536
checking Intel537
checking ndiswrapper
------------------------------------------------------------------------------
prepare_sleep finished for suspend2disk
------------------------------------------------------------------------------

i had similar reports and am quite sure this is not a powersave but a kernel/driver bug.
The interesting thing is that it works for you with hibernate.
Can you determine the list of modules unloaded by hibernate (i seem to remember there is some "unload everything that is possible to unload" logic in hibernate, but am not sure)?
Anyway, this _should_ be fixed in the drivers and the kernel in general, so reporting this to acpi-devel and/or linux-kernel is probably the best bet.

Further discussion should take place on the powersave-devel mailinglist since it is just much less painful to use than those stupid web forums (if you do not want to subscribe, i can whitelist you for posting :-)