Comment 6 for bug 187884

As suggested in https://wiki.ubuntu.com/DebuggingKernelSuspend, I have used the "echo 1 > /sys/power/pm_trace" trick before suspending to try to record debugging info. The output of dmesg after suspending, attempting to resume, hard rebooting and then booting up in recovery mode to the command line (less than 3 minutes later) is attached.

I will update the kernel when Alpha 4 comes out and let you know whether the problem is resolved.