While not pertinent to this bug report you might want to look into this
from you dmesg file:
[ 24.473418] attempt to access beyond end of device
[ 24.473422] sdb2: rw=16, want=8, limit=2
[ 24.473426] Read-error on swap-device (8:18:8)
** Changed in: linux-source-2.6.22 (Ubuntu)
Importance: Undecided => Medium
Assignee: (unassigned) => Ubuntu Kernel ACPI Team
Status: New => Triaged
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Gutsy suspend to RAM fails on ACER Veriton 5500
https://bugs.launchpad.net/bugs/139858
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