Public bug reported:

Binary package hint: uswsusp

After suspending to disk and resuming a couple of times using s2disk
(via pm-hibernate, devicekit-power and gnome-power-manager), programs
start behaving oddly, e.g., failing to find symbols in a shared library.
Running debsums on the package containing the library in question shows
that it's changed from the version from the package.  However,
immediately after a reboot, debsums shows that the file is OK after all.
The library in question was mapped into at least one process at the time
of the suspend, so I suspect that the copy in the page cache was
corrupted.

On an earlier occasion, Google Chrome (and some other programs -- I
don't recall the details) began segfaulting on startup.  Again a reboot
resolved the problem.

I since switched pm-hibernate to use the `kernel' method and haven't
experienced any more problems of this nature since.  This is a shame
because uswsusp is rather faster (and I'd rather like to be able to use
s2both).

The laptop in question is a ThinkPad T500; I turned on the compression
and MD5 options.  (I assumed that the MD5 checksum would ensure that the
compression hadn't damaged anything, and haven't done further
experimentation with the uswsusp options.)

ProblemType: Bug
Architecture: i386
Date: Wed Apr  7 18:41:43 2010
DistroRelease: Ubuntu 9.10
Package: uswsusp 0.8-1.1ubuntu3
ProcEnviron:
 LC_COLLATE=POSIX
 PATH=(custom, user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-20.58-generic
SourcePackage: uswsusp
Uname: Linux 2.6.31-20-generic i686

** Affects: uswsusp (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386

-- 
Memory corruption after s2disk
https://bugs.launchpad.net/bugs/557677
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