Bug 6101

Summary: kernel oops when suspending with swsusp
Product: Power Management Reporter: Robert (spinningteacup)
Component: OtherAssignee: power-management_other
Severity: normal CC: rjwysocki
Priority: P2    
Hardware: i386   
OS: Linux   
Kernel Version: Tree: Mainline
Subsystem: Regression: ---

Description Robert 2006-02-18 13:20:41 UTC
Distribution: Debian
Hardware Environment: acer travelmate 800 (intel centrino laptop)

Problem Description: Unloading all unloadable modules and then suspending to 
disk using swsusp results in a kernel oops ("Unable to handle kernel paging 
request at address..."). The only modules that are loaded at this point are: 
usbcore, yenta_socket, rsrc_nonstatic, pcmcia_core, intel_agp, agpgart (see 
also the screenshot).
Strangely, if I don't unload all modules, swsusp works *sometimes*. It *always* 
reproducibly oopses if I unload all modules before calling suspend.

Steps to reproduce: I unloaded all unloadable modules and then called 
echo -n disk > /sys/power/state

Here is the log, config, lspci, and a digicam screenshot of the oops:

Comment 1 Robert 2006-02-18 13:59:04 UTC
I just noticed that using suspend-to-RAM (echo -n mem > /sys/power/state) leads 
to exactly the same result.

(Unload all modules, suspend -> oops)
Comment 2 Pavel Machek 2006-02-18 14:09:11 UTC
Can you try not loading those modules at all? I guess some module have problem
in unload routine...

Comment 3 Pavel Machek 2006-09-27 01:42:32 UTC
If it still happens in 2.6.18, please reopen.