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Subject2.6.24-rc2 STD with s2disk fails to activate suspended system after loading
please cc me, I'm not not subscribed to LKML

Hello,

with kernel 2.6.24-rc2 STD with s2disk suspends the system to disk, but
when I start the system and the suspended systemimage is loaded, it
fails to "activate" this suspended systemimage and continues after some
time with following the normal boot sequence.

I can sucessfully STD the system with the following sequence
echo platform > /sys/power/disk
echo disk > /sys/power/state
and when I start the laptop the suspended system is sucessfully
restored.
Both behaviors are reliable reproducable.

googling for >"Freezing of tasks failed" swapper< brought
"Nigel Cunningham - PID namespaces break initrd+hibernate combination?"
http://lkml.org/lkml/2007/11/4/140

dmesg output:
<<snip>>
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 2000KiB [1 disk] into ram disk... done.
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
VFS: Mounted root (ext2 filesystem).
swsusp: Marking nosave pages: 000000000009f000 - 0000000000100000
swsusp: Basic memory bitmaps created
Clocksource tsc unstable (delta = -128791628 ns)
Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.00 seconds) done.
Freezing remaining freezable tasks ...
Freezing of tasks failed after 20.00 seconds (1 tasks refusing to
freeze): task PC stack pid father
swapper S c1835a88 0 1 0
00000000 00000046 c0118c80 c1835a88 00000004 00000001 c011e875
00000286 c01025a6 00000000 00000000 c1835b64 00000000 ffffffff c1835a90
00000001 00000000 00000000 00000000 00000000 0000007b 00000000 c1835a90
c0118c80 Call Trace:
[<c0118c80>] default_wake_function+0x0/0x10
[<c011e875>] do_wait+0x335/0xac0
[<c01025a6>] kernel_thread+0x96/0xb0
[<c0118c80>] default_wake_function+0x0/0x10
[<c011f031>] sys_wait4+0x31/0x40
[<c04b7a23>] initrd_load+0x1b3/0x3a0
[<c04b5108>] prepare_namespace+0x98/0x1b0
[<c016090f>] sys_access+0x1f/0x30
[<c04b47c6>] kernel_init+0x166/0x260
[<c0103f4a>] ret_from_fork+0x6/0x1c
[<c04b4660>] kernel_init+0x0/0x260
[<c04b4660>] kernel_init+0x0/0x260
[<c0104b8f>] kernel_thread_helper+0x7/0x18
=======================
kthreadd S 0000038f 0 2 0
00000000 00000046 c0487790 0000038f c183ff1c 00000000 c012d81b
c012d7b0 00000000 00000000 c0104b8f 00000000 00000000 00000000 00000000
00000000 00000000
Call Trace:
[<c012d81b>] kthreadd+0x6b/0xd0
[<c012d7b0>] kthreadd+0x0/0xd0
[<c0104b8f>] kernel_thread_helper+0x7/0x18
=======================
ksoftirqd/0 S 00000000 0 3 2
00000000 00000046 fffffffc 00000000 c0120f00 00000000 c0120f7a
c012d782 c012d740 00000000 00000000 c0104b8f c183ff3c 00000000 00000000
00000000 00000000 00000000
Call Trace:
[<c0120f00>] ksoftirqd+0x0/0x80
[<c0120f7a>] ksoftirqd+0x7a/0x80
[<c012d782>] kthread+0x42/0x70
[<c012d740>] kthread+0x0/0x70
[<c0104b8f>] kernel_thread_helper+0x7/0x18
<<snip>>

--------------------
Chris Friedhoff
chris@friedhoff.org
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