Here is the required log file. Here is what happens when I stopped cups-browsed: 1. Network activity spikes cease immediately 2. Messages in cups' error log continue for a while (20-30s), but then stop.
After starting cups-browsed again, the spikes start again immediately. ** Attachment added: "log.txt" https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/1560099/+attachment/4607777/+files/log.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to cups-filters in Ubuntu. https://bugs.launchpad.net/bugs/1560099 Title: cups-browsed generates constant and significant network traffic Status in cups-filters package in Ubuntu: Incomplete Bug description: Ubuntu freshly updated to 16.04. Whenever cups-browsed is running, it generates around 1 to 1.5 Mbps of incoming traffic, in regular spikes of 2.5Mbps. The cups log shows messages like this every few seconds: E [21/Mar/2016:13:01:22 -0300] [Client 2130] Returning IPP client-error-bad-request for CUPS-Add-Modify-Printer (ipp://localhost:631/printers/DTsPrinters) from localhost E [21/Mar/2016:13:01:22 -0300] [Client 2130] Returning IPP client-error-bad-request for CUPS-Add-Modify-Printer (ipp://localhost:631/printers/LabelPrinters) from localhost E [21/Mar/2016:13:01:22 -0300] [Client 2130] Returning IPP client-error-bad-request for CUPS-Add-Modify-Printer (ipp://localhost:631/printers/ZT220) from localhost E [21/Mar/2016:13:01:23 -0300] [Client 2130] Returning IPP client-error-bad-request for CUPS-Add-Modify-Printer (ipp://localhost:631/printers/Zebra-GK420t) from localhost These are al remote printers that are on different Ubuntu 14.04 servers. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: cups-browsed 1.8.2-2ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-14.30-generic 4.4.5 Uname: Linux 4.4.0-14-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 CurrentDesktop: GNOME Date: Mon Mar 21 12:54:49 2016 InstallationDate: Installed on 2015-01-23 (422 days ago) InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 20266 Papersize: letter PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/Star_TSP143_.ppd', '/etc/cups/ppd/Brother_MFC-6890CDW.ppd', '/etc/cups/ppd/HP_LaserJet_CP_1025nw.ppd', '/etc/cups/ppd/ZTC-ZT230-200dpi-ZPL.ppd', '/etc/cups/ppd/Epson_T1110.ppd'] failed with exit code 2: grep: /etc/cups/ppd/Star_TSP143_.ppd: Permission denied grep: /etc/cups/ppd/Brother_MFC-6890CDW.ppd: Permission denied grep: /etc/cups/ppd/HP_LaserJet_CP_1025nw.ppd: Permission denied grep: /etc/cups/ppd/ZTC-ZT230-200dpi-ZPL.ppd: Permission denied grep: /etc/cups/ppd/Epson_T1110.ppd: Permission denied ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-14-generic.efi.signed root=UUID=eecad38d-4fff-462c-92bc-357fa12e5515 ro quiet splash vt.handoff=7 SourcePackage: cups-filters UpgradeStatus: Upgraded to xenial on 2016-03-21 (0 days ago) dmi.bios.date: 03/25/2014 dmi.bios.vendor: LENOVO dmi.bios.version: 76CN35WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Yoga2 dmi.board.vendor: LENOVO dmi.board.version: 31900058STD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Yoga 2 Pro dmi.modalias: dmi:bvnLENOVO:bvr76CN35WW:bd03/25/2014:svnLENOVO:pn20266:pvrLenovoYoga2Pro:rvnLENOVO:rnYoga2:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoYoga2Pro: dmi.product.name: 20266 dmi.product.version: Lenovo Yoga 2 Pro dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/1560099/+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
