Public bug reported: Problem: System freezes and reboots during attempt to copy a line from kern.log after excessive entries into it.
Expected behaviour: System remains stable so I can investigate the initial problem. ;) Details: The problems with the RTL8192SE drivers are discussed in length in #401126 and #457872 suggests there might be several problems related to it. Background: The wifi driver for my Toshiba Qosmio x500-10U's RTL8192SE is not directly supported through the Ubuntu repositories and has to be compiled by hand after each kernel update. This worked fine until the most recent kernel update ("uname -a" follows) Linux TRULYON 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 04:38:19 UTC 2010 x86_64 GNU/Linux /proc/version_signature identifies the version as "Ubuntu 2.6.31-20.58-generic", which corresponds to my standard amd64 Karmic install. The driver I'm using is rtl8192se_linux_2.6.0010.1020.2009_64bit discussed in #401126 and similar entries. After several tries the driver finally compiled last Friday and it seemed to work fine. When I powered up the machine today and tried to retrieve new commits from a project's GIT repository the initial list retrieval took seemingly forever without a result and the kern.log was flooded with "DMA: Out of SW-IOMMU space for 9100 bytes at device 0000:0a:00.0" entries. Once I tried to copy a line from "System > Administration > Log File Viewer" for a Google search (machine was connected through the Atheros' port (eth0) at that point since wifi didn't seem to work) the system just froze, didn't accept any peripheral input and after a while rebooted with no error message whatsoever. This is reported as a new bug rather than a variation of bug #457872 since the problem didn't occur after the installation but only after a full reboot (used the Windows partition during the weekend for some games). Note: The "linux" package was automatically selected once I used the crash report tool. Here's the output of "apt-cache policy linux": linux: Installed: (none) Candidate: 2.6.31.20.33 Version table: 2.6.31.20.33 0 500 http://de.archive.ubuntu.com karmic-updates/main Packages 500 http://security.ubuntu.com karmic-security/main Packages 2.6.31.14.27 0 500 http://de.archive.ubuntu.com karmic/main Packages Please let me know if there's anything more I can provide to shed some light onto this problem. ProblemType: Bug AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: HDA Generic [HDA Generic] Subdevices: 1/1 Subdevice #0: subdevice #0 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: HDA Generic [HDA Generic] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: michael 1823 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf0900000 irq 22' Mixer name : 'Conexant ID 5067' Components : 'HDA:14f15067,1179ffd4,00100301' Controls : 6 Simple ctrls : 4 CheckboxSubmission: b24a93d56032d021e5fc32379db8b184 CheckboxSystem: b1865df84255b8716d3bcc269ff410d1 Date: Mon Mar 22 10:18:45 2010 DistroRelease: Ubuntu 9.10 HibernationDevice: RESUME=UUID=043a2dcb-92da-44ad-98b0-ae0af3d83624 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) MachineType: TOSHIBA QOSMIO X500 NonfreeKernelModules: nvidia Package: linux-image-2.6.31-20-generic 2.6.31-20.58 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-20-generic root=UUID=ef51f79a-353d-4af0-a490-6cff0af6aad0 ro vga=799 crashkernel=384M-2G:64M,2G-:128M quiet splash ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-20.58-generic RelatedPackageVersions: linux-backports-modules-2.6.31-20-generic N/A linux-firmware 1.26 RfKill: SourcePackage: linux Uname: Linux 2.6.31-20-generic x86_64 WifiSyslog: dmi.bios.date: 02/23/2010 dmi.bios.vendor: TOSHIBA dmi.bios.version: V2.20 dmi.board.name: QOSMIO X500 dmi.board.vendor: TOSHIBA dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: TOSHIBA dmi.chassis.version: N/A dmi.modalias: dmi:bvnTOSHIBA:bvrV2.20:bd02/23/2010:svnTOSHIBA:pnQOSMIOX500:pvrPQX33E-00S009GR:rvnTOSHIBA:rnQOSMIOX500:rvrNotApplicable:cvnTOSHIBA:ct10:cvrN/A: dmi.product.name: QOSMIO X500 dmi.product.version: PQX33E-00S009GR dmi.sys.vendor: TOSHIBA ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug -- System crash possibly due to wifi driver https://bugs.launchpad.net/bugs/544040 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs