[Bug 219675] [NEW] Disk Suspend/Resume halts since change from kernel 2.6.20 to 2.6.24

[rola]

Public bug reported:

SInce I changed from feisty to hardy, suspend to disk and suspend to ram are freezing.
I will concentrate here on Suspend-to-Disk, because I hardly used Suspend-to-RAM at all.

I tried suspending via s2disk, hibernate -F  /etc/hibernate/sysfs-disk.conf,
echo -n "disk" > /sys/power/state - Results are always the same.

With all modules loaded: Black screen, no suspend happening
>From Console, gdm stopped: Freezes while message "Snapshotting System ..."
                                      - or freeze while "Suspending Console(s) for sysfs-disk.conf
>From Console, loaded modules reduced to minimum (attached "sus.modules-loaded"): Suspend working,
But on resume it's freezing (attached "resume-freeze-screenshot")

Failing with the following kernels: 2.6.22-14.46,  2.6.24-15.26,
2.6.24-16.30

Without any further tweaks it's working for  2.6.20-16.35

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New

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Disk Suspend/Resume halts since change from kernel 2.6.20 to 2.6.24
https://bugs.launchpad.net/bugs/219675
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