> Could you make sure that the filesystem(REISERFS) on the external device
> has been destroyed? If only the single file is affected, it should not be a 
> big
> deal.
I'm sorry, but this is unacceptable. It is not correct for even a single
file to be affected by this problem. What if it happens to be a very
important file? When it comes to filesystem integrity, it's either fully
correct or it isn't - there is no "partial credit" here.

The workaround can be done entirely from userspace, without having to
wait for linux-pm guys to sort their stuff out. Back when I ran a gentoo
box, I had a suspend script with a simple 5 lines of shell code which
tried to unmount external devices, and did not initiate suspend unless
this operation completed. Sure, the problem would still occur if you
directly echo mem > /sys/power/state, but at least clicking 'Suspend'
from the UI would try to do the right thing first, and fail to suspend
if unmounting was unsuccessful.

Maybe I will just go back to that script on this system.

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https://bugs.launchpad.net/bugs/883748

Title:
  Suspend/resume corrupts external data storage devices

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