https://bugzilla.kernel.org/show_bug.cgi?id=42627





--- Comment #12 from Lv Zheng <[email protected]>  2012-06-12 03:02:04 ---
If freezer/devices pm_test can work for your system, you might try to use
"hardware" hibernation by:
 echo hardware > /sys/power/disk
 echo disk > /sys/power/state

You can also test every hibernation mode with the kernel setup parameter:
"init=/bin/bash".

If you still face the same problem, since hibernation without external USB
devices worked for your platform, let's confirm whether the problem is caused
by a known EHCI bug for ultra reliable systems. If your system has a large
scale external storages (I can learn this from your long period filesystem
syncing logs) with fault-tolerant enabled, it might be the case you should be
noted of the information included in the following mailing threads:
https://lkml.org/lkml/2007/10/29/443
https://lkml.org/lkml/2007/11/22/33
you can find more by searching google with keywords of "unload EHCI
hibernation".  So could you please try to unload EHCI hcd before performing:
 echo [platform|hardware] > /sys/power/disk
 echo disk > /sys/power/state

If you still face the same problem after trying the workaround of uloading EHCI
hcd before hibernation, there should be some nVidia guys helping you to figure
out the true cause in your graphics driver.

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