[ATrpms-users] FC6 Suspend2 kernel - incomplete support?

[Jeff Guerdat]

Matthias Hensler wrote:

>> I just installed the latest FC6 Suspend2 kernel which works fine until I
>> try to suspend:
>>
>> [jguerdat at toshiba ~]$ sudo hibernate
>> hibernate: WARNING: Filewriter location given, but kernel does not
>> have filewriter hibernate: support. Ignoring.
> 
> Hmmm, can you check "cat /sys/power/suspend2/file/enabled"?

It's set to "1" but I note a difference in the path name:

2789 -  /sys/power/suspend2/filewriter/enabled
2849 -  /sys/power/suspend2/file/enabled

>> /usr/share/hibernate/scriptlets.d/suspend2: line 528: echo: write error:
>> Device or resource busy
> 
> What does dmesg say about this?

During boot:

Suspend2 FileAllocator: Testing whether you can resume:
Suspend2 2.2.8.4: FileAllocator: File signature found.
Resuming enabled.
Suspend2 2.2.8.4: Resuming enabled.
Suspend2 2.2.8.4: No image found.
Suspend2 FileAllocator: Testing whether you can resume:
Suspend2 2.2.8.4: FileAllocator: File signature found.
Resuming enabled.
Suspend2 2.2.8.4: Resuming enabled.
Suspend2 2.2.8.4: No image found.

After a failed suspend attempt:

FileAllocator is the active writer,  but no filename has been set.
File Allocator didn't initialise okay.
Suspend2 2.2.8.4: Initialise modules failed!


>> I'm guessing that the filewriter support was somehow left out unless
>> this means that this support is now removed...
> 
> It shouldn't. It did work with the FC6-base kernel (2.6.18-1.2789)?

Yes.

After a series of tests involving removing the suspend file and trying 
to recreate it, I find that the 2789 kernel will create the file on 
first invocation of hibernate, just as it always has.  The 2849 kernel 
does not - it just gives the same errors and tries to hibernate which, 
of course, fails.

At this point it appears to be the difference in pathnames (i.e. 
filewriter vs. file as noted above).  I tried to create a link but, of 
course, was denied since it's a dynamic system-created structure.

-- 
Jeff Guerdat

I have reached an age when, if someone tells me to wear socks,
I don't have to. - Albert Einstein