swsusp (2.6.9-rc1-mm4 + bigdiff): Unable to handle kernel paging request

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Saturday 11 of September 2004 23:59, Rafael J. Wysocki wrote:
> On Saturday 11 of September 2004 21:22, Rafael J. Wysocki wrote:
> > On Saturday 11 of September 2004 11:50, Rafael J. Wysocki wrote:
[- snip -]
> After issuing "echo 4 > /proc/acpi/sleep" I get things similar to this:

Here goes a similar trace of that sort:

Stopping tasks: 
====================================================================|
Freeing memory... done (97366 pages freed)
PM: Attempting to suspend to disk.
PM: snapshotting memory.
swsusp: critical section:
[nosave pfn 0x5ef]swsusp: Need to copy 26830 pages
suspend: (pages needed: 26830 + 512 free: 104049)
[nosave pfn 0x5ef]swsusp: critical section/: done (27086 pages copied)
Unable to handle kernel paging request at ffffffff93d9fdff RIP:
<ffffffff805cd401>{syscall_init+1}
PML4 103027 PGD 105027 PMD 0
Oops: 0002 [1]
CPU 0
Modules linked in: usbserial parport_pc lp parport joydev sg sd_mod sr_mod 
scsi_mod ohci1394 yenta_socket ieee1394 pcmcia_core cpufreq_ud
Pid: 17970, comm: bash Not tainted 2.6.9-rc1-mm4
RIP: 0010:[<ffffffff805cd401>] <ffffffff805cd401>{syscall_init+1}
RSP: 0000:000001000a089e40  EFLAGS: 00010402
RAX: 0000000000000089 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000001000a089e68 RDI: ffffffff804741d0
RBP: ffffffff80487140 R08: 0000000000000000 R09: 0000000000000004
R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000002 R14: 0000002a955a5000 R15: 0000000000000000
FS:  0000002a95d330a0(0000) GS:ffffffff805c16c0(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff93d9fdff CR3: 0000000000101000 CR4: 00000000000006e0
Process bash (pid: 17970, threadinfo 000001000a088000, task 0000010016f7aa10)
Stack: ffffffff801211d9 0000000000000002 ffffffff80487140 8000895b7e402080
       00000000ffffffff ffffffff8053de00 ffffffff80121448 0000000000000000
       ffffffff80161033 0000000000000002
Call Trace:<ffffffff801211d9>{fix_processor_context+137} 
<ffffffff80121448>{__restore_processor_state+120}
       <ffffffff80161033>{swsusp_suspend+19} 
<ffffffff80161ee4>{pm_suspend_disk+100}
       <ffffffff8015fa26>{enter_state+70} 
<ffffffff803032c4>{acpi_system_write_sleep+107}
       <ffffffff8018ff14>{vfs_write+228} <ffffffff80190053>{sys_write+83}
       <ffffffff80110be2>{system_call+126}

Code: d9 93 ff fd d9 93 ff fe da 93 ff fd da 91 ff fc d9 90 ff fd
RIP <ffffffff805cd401>{syscall_init+1} RSP <000001000a089e40>
CR2: ffffffff93d9fdff

It is easily reproducible.  It suffices to run X with KDE and some apps with 
it and try "echo 4 > /proc/acpi/sleep" to get one of those (100% of the time 
or so).

Greets,
RJW

-- 
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
		-- Lewis Carroll "Alice's Adventures in Wonderland"