Problem is fixed in 3.13 rc2. System is fast even after a battery outage
during suspend.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1256361
Title:
System is running painfully slow after reboot/starup sometimes
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
Every time my computer runs out of battery while being in suspend OR
crashes after resume from suspend (black screen, won't start properly)
the system runs painfully slow.
I can demonstrate this by running a very simple benchmark with cat
/dev/urandom.
First result: After a bootup after power failure during suspend
thonov@thonov-ubuntu:~$ time cat /dev/urandom |head -c 500000000
>/dev/null
real 2m54.181s
user 0m0.308s
sys 2m54.912s
thonov@thonov-ubuntu:~$ uname -r
3.11.0-13-generic
2nd result: After a shutdown / power-on under normal circumstances:
thonov@thonov-ubuntu:~$ time cat /dev/urandom |head -c 500000000
>/dev/null
real 0m43.797s
user 0m0.092s
sys 0m44.036s
thonov@thonov-ubuntu:~$ uname -r
3.11.0-13-generic
I'm attaching a dmesg from both these bootups.
While I'm having this problem it is insanely slow to use the system.
Just opening Chrome takes forever and when it's finally opened it is
also slow browsing. Well, using any app is slow.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image (not installed)
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
Uname: Linux 3.11.0-13-generic i686
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: thonov 2267 F.... pulseaudio
Date: Fri Nov 29 16:36:12 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-06-26 (520 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386
(20120423)
MachineType: LENOVO 42433ZG
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-13-generic
root=UUID=c3c7f36f-ca42-443e-819f-5553fe3d040a ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.11.0-13-generic N/A
linux-backports-modules-3.11.0-13-generic N/A
linux-firmware 1.116
SourcePackage: linux
UpgradeStatus: Upgraded to saucy on 2013-10-24 (35 days ago)
dmi.bios.date: 07/26/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 8AET64WW (1.44 )
dmi.board.asset.tag: Not Available
dmi.board.name: 42433ZG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8AET64WW(1.44):bd07/26/2013:svnLENOVO:pn42433ZG:pvrThinkPadT520:rvnLENOVO:rn42433ZG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 42433ZG
dmi.product.version: ThinkPad T520
dmi.sys.vendor: LENOVO
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