Unfortunately, the actual crash happens somewhere in Avahi or D-Bus and the stacktraces do not show through which part of CUPS the crashing piece of code was reached. Probably it is in a thread started by Avahi. So it is far from simple to find the place in CUPS where an additional NULL check is needed (this would be the real fix).
Therefore and keeping in mind that the CUPS broadcasting/browsing patch will go away in Raring, I suggest the general blocking of cupsd crash reports via /etc/apport/blacklist.d/cups. In addition, CUPS was very stable all the time, so the chance of other crashes to happen is rather low. So I think we can take the risk. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1086019 Title: cupsd crashes regularly (daily) Status in “cups” package in Ubuntu: Triaged Status in “cups” source package in Quantal: Confirmed Bug description: Every day I get a 'System Problem Detected' dialog that says that cupsd has crashed. The symptom is similar to the one described in bug 1034045. I expected this would be fixed by cups 1.6.1-0ubuntu11, but I have that version installed and the errors persist. The test case in bug 1034045 does not result in an immediate crash of cupsd. Specifically, this does not produce a crash on my system: 1. Run 'sudo rm -f /var/crash/_usr_sbin_cupsd.0.crash' 2. Run 'sudo service cupsd restart' 3. Verify that a new /var/crash/_usr_sbin_cupsd.0.crash file has been created (and if on a desktop, that a new crash notification has been shown). ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: cups 1.6.1-0ubuntu11 ProcVersionSignature: Error: [Errno 2] No such file or directory: '/proc/version_signature' Uname: Linux 3.6.3-030603-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 CupsErrorLog: Date: Mon Dec 3 10:49:54 2012 InstallationDate: Installed on 2010-09-17 (808 days ago) InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1) KernLog: Dec 3 10:41:14 steve-laptop kernel: [71466.813974] type=1400 audit(1354549274.550:29): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=15433 comm="apparmor_parser" Dec 3 10:41:14 steve-laptop kernel: [71466.814450] type=1400 audit(1354549274.550:30): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/cupsd" pid=15433 comm="apparmor_parser" MachineType: Apple Inc. MacBookPro3,1 MarkForUpload: True Papersize: letter ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.6.3-030603-generic root=UUID=4b3d81ed-fb5d-4946-97c0-ec537e1bfa3f ro quiet splash SourcePackage: cups UpgradeStatus: Upgraded to quantal on 2012-08-07 (118 days ago) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP31.88Z.0070.B07.0803051658 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F4238BC8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F4238BC8 dmi.modalias: dmi:bvnAppleInc.:bvrMBP31.88Z.0070.B07.0803051658:bd03/05/08:svnAppleInc.:pnMacBookPro3,1:pvr1.0:rvnAppleInc.:rnMac-F4238BC8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F4238BC8: dmi.product.name: MacBookPro3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1086019/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
