Can't use ramzswap // swapon: /dev/ramzswap0: read swap header failed: Invalid argument

[Michael Windelen]

Hello,

i'm not able to use ramzswap in 10.10. There was no Problem using it in 10.04 / both amd64.

swapon: /dev/ramzswap0: read swap header failed: Invalid argument
~#modprobe ramzswap
~#swapon -p 100 /dev/ramzswap0
swapon: /dev/ramzswap0: read swap header failed: Invalid argument

Greetings

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-22-generic 2.6.35-22.33
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: micwin 2979 F.... pulseaudio
 /dev/snd/controlC2: micwin 2979 F.... pulseaudio
 /dev/snd/controlC0: micwin 2979 F.... pulseaudio
 /dev/snd/pcmC0D0p: micwin 2979 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xf3ff4000 irq 16'
   Mixer name : 'Realtek ALC883'
   Components : 'HDA:10ec0883,1043829f,00100002'
   Controls : 35
   Simple ctrls : 20
Card1.Amixer.info:
 Card hw:1 'Audio'/'USB Audio at usb-0000:00:13.1-1, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB0c45:166e'
   Controls : 12
   Simple ctrls : 5
Card2.Amixer.info:
 Card hw:2 'Bt878'/'Brooktree Bt878 at 0xf2ffe000, irq 21'
   Mixer name : 'Bt87x'
   Components : ''
   Controls : 3
   Simple ctrls : 5
Date: Tue Oct 12 18:15:22 2010
HibernationDevice: RESUME=UUID=2462ae8e-4215-4885-8235-098452439520
MachineType: System manufacturer System Product Name
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-22-generic root=/dev/mapper/system--bonn-rootfs ro quiet splash
ProcEnviron:
 LANG=de_DE.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
StagingDrivers: ramzswap
Title: [STAGING]
dmi.bios.date: 10/26/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1201
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M3A78-EMH HDMI
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1201:bd10/26/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3A78-EMHHDMI:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Cyril Jaquier (cyril-jaquier)]

Hi,

Did you run:

# sudo /usr/lib/initramfs-tools/bin/rzscontrol /dev/ramzswap0 --init

before activating the swap partition???

[Michael Windelen (ubuntu-fam-windelen)]

Hi,

thanx for your fast reply.
No i didn't do this.

Now it works.

(In 10.04 this wasn't necessary, so i did'nt thought about it...)

[Paul Jaros (madmike77)]

Please note though, that running

# sudo /usr/lib/initramfs-tools/bin/rzscontrol /dev/ramzswap0 --init

brings ramzswap into a usable state for swapon but its seems it needs to be done after every reboot. :P

[Jeremy Foshee (jeremyfoshee)]

Hi Michael,

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

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[Paul Jaros (madmike77)]

I've installed http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2010-10-16-maverick/linux-image-2.6.36-999-generic_2.6.36-999.201010160905_i386.deb and got the same error after booting with that kernel and a "sudo swapon -p 100 /dev/ramzswap"

[Michael Windelen (ubuntu-fam-windelen)]

Hi,

perhaps it is a little too late, or i'm to stupid, but after installing 2.6.36-020636rc8-generic i can't load the module ramzswap (an zram). do i have to compile anything? What is my mistake?

Michael

[Paul Jaros (madmike77)]

I didn't need to install anything beside the kernel I used in #6... I installed the header-package too, but I don't think this would make a difference

[Virgil Brummond (uraharakisuke153)]

I have this problem as well, it will not enable automatically in Maverick 64-bit.

[christianausb (christian-klauer)]

I also installed 2.6.36-02063601-generic. It seems the module has been renamed to "zram".

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu development release http://cdimage.ubuntu.com/daily-live/current/ . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

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