cupsd 100% cpu

[helpdeskdan]

Binary package hint: cups

I regret, as of yet, I haven't found the trigger for the high CPU, so I suppose the bug report is rather useless. Anybody else having a problem where cupsd used 100% cpu and has to be killed?

ProblemType: Bug
Architecture: i386
CupsErrorLog: E [25/Nov/2009:15:39:49 -0700] cupsdReadClient: 16 IPP Read Error!
Date: Wed Nov 25 17:39:56 2009
DistroRelease: Ubuntu 9.10
Lpstat: Error: command ['lpstat', '-v'] failed with exit code 1: lpstat: Connection refused
MachineType: Dell Inc. Dell DM061
Package: cups 1.4.1-5ubuntu2.1
Papersize: letter
PpdFiles:
 Stylus_CX4400: Epson Stylus CX4400 - CUPS+Gutenprint v5.2.4 Simplified
 Epson900: Epson Stylus Color 900 - CUPS+Gutenprint v5.2.4
 HP-LaserJet-4050: HP LaserJet 4050 Series Postscript (recommended)
ProcCmdLine: root=UUID=de6d3841-3324-481d-93d7-e6b08a768853 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-15.50-generic
SourcePackage: cups
Uname: Linux 2.6.31-15-generic i686
dmi.bios.date: 11/30/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.0.5
dmi.board.name: 0WG864
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.0.5:bd11/30/2006:svnDellInc.:pnDellDM061:pvr:rvnDellInc.:rn0WG864:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: Dell DM061
dmi.sys.vendor: Dell Inc.

[Marc Quinton (mquinton)]

my cups configuration was working fine ; I am running Ubuntu Karmic with HP LaserJet 2100 Foomatic/ljet4 driver. I don't know why, but now cups daemon is running at 100% CPU.

[Marc Quinton (mquinton)]

and, precisely, when I restart cupsd or my computer, the daemon allways restart heavy loading my CPU.

[Marc Quinton (mquinton)]

I have an canceled job in my print queue ; this job is allready cancel but still existing and I am unable to remove it.

root@karmic:~# lpq
laserjet is ready and printing
Rank Owner Job File(s) Total Size
active tine 187 Jazz - L'Opéra de quat'sous 35840 bytes
root@karmic:~# cancel 187
cancel: cancel-job failed: Job #187 is already completed - can't cancel.

[Marc Quinton (mquinton)]

some guys have fun with printing : http://ubuntuforums.org/showthread.php?t=1000282

[Marc Quinton (mquinton)]

seems to work now : I "canceled all jobs" from web interface and restarted cupsd daemon. Seems OK now.

[Alejandro Díaz-Caro (janus)]

I have the same problem: I have two printers configured (one HP and one Epson), and time to time I have to stop cups (with sudo stop cups) because it is consuming 100% of one of the cores. If I restart it again immediately, it works fine maybe for one day or so, and then again the same behaviour.

I never leave jobs stopped at the queue, so I don't know what triggers the problem.

Please, tell me if there is any test I can run to try to detect the problem.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.