swap area problem

subzero · 2012-10-02 11:30:03

hello
I don't have swaparea partition, and I want to use pm-hibernate , so I used this commands

# fallocate -l 512M /swapfile
# dd if=/dev/zero of=/swapfile bs=1M count=512
# chmod 600 /swapfile
# mkswap /swapfile
# swapon /swapfile
then I edited /etc/fstab
/swapfile none swap defaults 0 0

after that I edited /etc/default/grub (GRUB_CMDLINE_LINUX)
GRUB_CMDLINE_LINUX="resume=/dev/sda6 resume_offset=1232896 "

/dev/sda6 contains swapfile and I found resume_offset after using file

[root@arch ~]# filefrag -v /swapfile
Filesystem type is: ef53
File size of /swapfile is 536870912 (131072 blocks, blocksize 4096)
ext logical physical expected length flags
0 0 1232896 32768
1 32768 1265664 32768
2 65536 1298432 32768
3 98304 1331200 32768 eof
/swapfile: 1 extent found
#######################################

in the end I used "grub-mkconfig > /boot/grub/grub.cfg "

after all this pm-hibernate can't work it shows me this message
"PM : swap header not found"
what should I do ??

Trilby · 2012-10-02 11:48:38

I have never set up a swap file, so take this with a large grain of salt, but don't you need to use mkswap on the file?

subzero · 2012-10-02 12:43:18

Yes, I used it in the 4th command

Trilby · 2012-10-02 12:49:43

Oh, wow, sorry, I really can't read some days.

Ashren · 2012-10-02 12:57:21

Does

mkswap -f <swapfile>

make any difference?

subzero · 2012-10-02 21:54:03

Ashren,
No difference !

subzero · 2012-10-07 10:48:42

Now, I use uswsusp to hibernate, but when I turn-on my computer, I find my computer as I didn't use hibernate !!
the new contenents of /boot/grub/grub.cfg are post in this link http://pastebin.mozilla.org/1859526
the contenent of /etc/suspend.conf :
#snapshot device = /dev/snapshot
resume offset = 2367488
resume device = /dev/sda6
#image size = 350000000
#suspend loglevel = 2
#compute checksum = y
#compress = y
#encrypt = y
#early writeout = y
#splash = y
########################
/etc/default/grub :
http://pastebin.mozilla.org/1859527
########################
I regenerated /boot/grub/grub.cfg !!and I used
mkinitcpio -p linux

I don't know how to resilve this problem
what should I do ??

Strike0 · 2012-10-07 21:24:46

I have not used uswsusp, but that it did not work with your first method is also strange.

What is the filesystem of /dev/sda6 ?
Maybe you are missing an "insmod" for that in grub.

falconindy · 2012-10-07 23:51:10

What's the underlying filesystem? I'll mention that btrfs doesn't actually support swapfiles: https://btrfs.wiki.kernel.org/index.php … p_files.3F

subzero · 2012-10-08 19:04:48

my file system is ext3
I resolved the problem by making a new partition for swapping, and I use pm-hibernate
now I have one problem, when I try to suspend
[user@arch ~]$ s2ram
KMS graphics driver is in use, skipping quirks.

Last edited by subzero (2012-10-08 19:39:30)

Strike0 · 2012-10-08 20:23:54

subzero wrote:

my file system is ext3
I resolved the problem by making a new partition for swapping, and I use pm-hibernate

Good that works then, but still strange the first method with the swapfile you tried did not.

subzero wrote:

now I have one problem, when I try to suspend
[user@arch ~]$ s2ram
KMS graphics driver is in use, skipping quirks.

If it just is noted in the pm-suspend.log but the machine suspends fine, then I would see it as an information.
In what way is it a problem?

subzero · 2012-10-08 20:30:45

Strike0 wrote:

In what way is it a problem?

after boot , pm-suspend works very good, then after resume ,when I use it , it suspend for 2 or three seconds and it resumes automaticly !!

Strike0 · 2012-10-08 20:37:45

Ok, that's no good then. Have you had a look at the troubleshooting issues: https://wiki.archlinux.org/index.php/Pm … om_suspend
for starters?

Share with us your graphics driver/chip, maybe also a relevant lines of the resume part in the pm-suspend.log when it failed. Any other errors in there apart from the KMS skipping quirks?

subzero · 2012-10-08 21:03:44

I uploaded the first 171 lines in suspend.log
http://pastebin.mozilla.org/1861107

Strike0 · 2012-10-08 21:12:18

Nothing unusual in there that I see, although you seem to have some configurations since then I would suppose ...
To me those lines look like your pc resumed fine on 9th September just after a lunch break. It did not?

subzero · 2012-10-08 21:25:15

I forgot XD , this file contains 19851 line , the last 181 lines are posted here http://pastebin.mozilla.org/1861115
I can't understand , if you read it , you will find success .... success success, perhaps it susspend 2 ram successfully but it resume without my permession !

Strike0 · 2012-10-08 21:53:44

What you posted now looks like a hibernate, not a suspend. Something might be mixed up there, if you say that is supposed to be the suspend2ram.
Further there is an error you can follow up:

Unloading kernel module button.../usr/lib/pm-utils/functions: ligne89: log : commande introuvable
Failed.

subzero · 2012-10-08 22:27:07

_rmmod()
{
	if modprobe -r "$1"; then
		touch "${STORAGEDIR}/module:$1"
		return 0
	else
		log "# could not unload '$1', usage count was $2"
		return 1
	fi
}

it says that log was not found. and I don't think that this is a problem
but you have reason suspend is not montionned at all in this file, I'm sure that I suspended to ram (I can make differance ^^) , perhaps pm-suspend can't writes its log !!

Strike0 · 2012-10-09 09:51:22

subzero wrote:

_rmmod()
{
	if modprobe -r "$1"; then
		touch "${STORAGEDIR}/module:$1"
		return 0
	else
		log "# could not unload '$1', usage count was $2"
		return 1
	fi
}
it says that log was not found. and I don't think that this is a problem
but you have reason suspend is not montionned at all in this file, I'm sure that I suspended to ram (I can make differance ^^) , perhaps pm-suspend can't writes its log !!

I have a different opinion:
1. It is a double-problem that "log" was not found, Why would the script be in that "else" bracket? To log that the unloading of module $1 failed.
2. It is a log about hibernate because it says so all over the place. Compare your two pastebins to see the difference. Besides again it is old: October 2 was last Friday. You probably got the wrong log again - log problem or not.
Try this to look at the last 200 lines of it

tail -n 200 /var/log/pm-suspend.log |more

Troubleshooting the reason behind suspend/resume-problems can be pretty tiresome.

I think you should take more time to gather the information. Also you suddenly changed thread topic, which is fine, but you did so without providing information about how you configured everything around pm-utils - compare it to how you provided the relevant information for your initial question regarding swapfile.

Arch Linux

#1 2012-10-02 11:30:03

swap area problem

#2 2012-10-02 11:48:38

Re: swap area problem

#3 2012-10-02 12:43:18

Re: swap area problem

#4 2012-10-02 12:49:43

Re: swap area problem

#5 2012-10-02 12:57:21

Re: swap area problem

#6 2012-10-02 21:54:03

Re: swap area problem

#7 2012-10-07 10:48:42

Re: swap area problem

#8 2012-10-07 21:24:46

Re: swap area problem

#9 2012-10-07 23:51:10

Re: swap area problem

#10 2012-10-08 19:04:48

Re: swap area problem

#11 2012-10-08 20:23:54

Re: swap area problem

#12 2012-10-08 20:30:45

Re: swap area problem

#13 2012-10-08 20:37:45

Re: swap area problem

#14 2012-10-08 21:03:44

Re: swap area problem

#15 2012-10-08 21:12:18

Re: swap area problem

#16 2012-10-08 21:25:15

Re: swap area problem

#17 2012-10-08 21:53:44

Re: swap area problem

#18 2012-10-08 22:27:07

Re: swap area problem

#19 2012-10-09 09:51:22

Re: swap area problem

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