[Debian-eeepc-devel] Debug hibernate/resume failure?

[Gerald Turner]

Hello, I've been running squeeze/testing on my Asus 1000HE for well over
a year, it's been solid - I've probably hibernated and resumed a hundred
consecutive times over a six month period without ever shutting down
(well... maybe had trouble with bluetooth not working after a resume a
long time ago).  Big thank you to Debian Laptop/EeePC hackers!

However since upgrading packages a few weeks ago, resume from hibernate
no longer works.

I need help figuring out how to debug it since I don't have much info to
provide for a bug report at the moment.

Suspend/resume from ram works fine.

Hibernate/resume fails 9 times out of 10.

I've taken out the 'quiet' parameter from grub, and during hibernation I
see kernel console output about freezing, ticking away (takes a few
seconds), and during resume I see similar messages about loading the
image - once it reaches 100% it blurts out a few more lines of kernel
messages and spontaneously reboots (without trying to resume again).

I've tried adding 'no_console_suspend=1 panic=10' parameters to grub,
hoping that it would pause 10 seconds before the reboot so I could read
the full message.  No luck.

The only boot/kernel/PM related packages I had upgraded a few weeks ago
are:

  grub-pc 1.98+20100804-13 -> 1.98+20100804-14
  linux-image-2.6.32-5-686 2.6.32-27 -> 2.6.32-30
  pm-utils 1.3.0-2 -> 1.3.0-3

Oh one more thing out of the ordinary:

After this upgrade (possibly during!), I wasn't very careful - I may
have suspended to ram and let the battery drain.  A few days later when
I booted up, grub complained it couldn't find the kernel and initrd
images.  I entered grub commands manually and got it to boot (though had
to use /vmlinuz instead of full path /boot/vmlinux-2..., otherwise "not
found" - fs corruption?).  Once booted back in, ran 'dpkg-reconfigure
linux-image-2.6.32-5-686' and 'dpkg-reconfigure grub-pc', grub problem
solved - but this is also when hibernate-resume started failing.

Any tips for having failed resume pause a moment before spontaneously
rebooting, or any other debugging advice?

-- 
Gerald Turner   Email: gturner at unzane.com   JID: gturner at unzane.com
GPG: 0xFA8CD6D5  21D9 B2E8 7FE7 F19E 5F7D  4D0C 3FA0 810F FA8C D6D5
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