Most recent kernel where this bug did not occur: don't know
Distribution: Debian unstable
Hardware Environment: ASUS L2B Laptop
Software Environment: uswsusp 0.7
Problem Description:
After updating the uswsusp package from 0.6~cvs20070618-1 to 0.7-1 I cannot resume after suspending to disk. Kernel output is as follows:
<snip>
kernel BUG at kernel/power/snapshot.c:464!
invalid opcode: 0000 [#1]
Modules linked in: usbhid floppy ohci1394 ieee1394 8139too mii uhci_hcd usbcore thermal processor fan
CPU:    0
EIP:    0060:[<c01355e4>]    Not tainted VLI
EFLAGS: 00010246   (2.6.22.6 #1)
EIP is at memory_bm_find_bit+0x68/0x6c
eax: c03e4ee4   ebx: ef43df38   ecx: 00000000   edx: 9f000040
esi: ef43df3c   edi: b7ba5008   ebp: c03e4f20   esp: ef43df28
ds: 007b   es: 007b   fs: 0000  gs: 0033  ss: 0068
Process resume (pid: 1009, ti=ef43c000 task=ef6b6530 task.ti=ef43c000)
Stack: ef43df38 ef751000 c0135654 ef43df38 00000002 ef73b000 00000004 c013634e 
       dffbb400 c023e384 00001000 00000000 00000000 ef45a240 c03e4f20 b7ba5008 
       00001000 c01372c2 ef45a240 b7ba5008 c01372b1 c0154492 ef43dfa0 00000000 
Call Trace:
 [<c0135654>] memory_bm_set_bit+0x14/0x24
 [<c013634e>] snapshot_write_next+0x16b/0x53a
 [<c023e384>] tty_write+0x179/0x1b2
 [<c01372c2>] snapshot_write+0x11/0x47
 [<c01372b1>] snapshot_write+0x0/0x47
 [<c0154492>] vfs_write+0x87/0x118
 [<c0154970>] sys_write+0x41/0x6a
 [<c0103d0a>] syscall_call+0x7/0xb
 =======================
Code: 53 08 73 f5 89 59 10 89 d0 2b 43 04 89 c1 83 e1 1f 8b 54 24 0c 89 0a c1 e8 03 25 fc ff ff 1f 03 43 10 89 06 5b 5e c3 0f 0b eb fe <0f> 0b eb fe 53 83 ec 0c 8d 4c 24 08 8d 5c 24 04 89 1c 24 e8 80 
EIP: [<c01355e4>] memory_bm_find_bit+0x68/0x6c SS:ESP 0068:ef43df28
</snip>

Steps to reproduce:
Suspend to disk via s2disk. Power on.