I got a good example of a v5.0-rc7 kernel exception attached. I can't reproduce them easily, although I could when I first filed my bug report. Now it takes a few hours of full bore Ethernet traffic. This crash I once again lost many/most of my usb devices.
On Wed, Feb 20, 2019 at 10:28 PM Gene Olson <g...@thinsoft.com> wrote: > If you need anything else, please let me know ahead of time. > > Thanks, > Gene > > On Wed, Feb 20, 2019 at 4:50 PM Kai-Heng Feng <kai.heng.f...@canonical.com> > wrote: > >> Ok, please attach dmesg when this issue happens, preferably under >> v5.0-rc7. >> >> The dmesg in comment #1 didn't record useful information. >> >> -- >> You received this bug notification because you are subscribed to the bug >> report. >> https://bugs.launchpad.net/bugs/1815808 >> >> Title: >> Thunderbolt Ethernet high-traffic exception >> >> Status in linux package in Ubuntu: >> Incomplete >> >> Bug description: >> Running iperf3 on Dell XP-15 with TB-10 Thunderbolt dock causes a >> kernel exception and ethernet failure after about 30 seconds. >> >> Easy to reproduce. Connect to another machine via Gig-E and run >> iperf3 in either direction until the problem occurs. Should run 900+ >> Mb in either direction. On one occasion I also lost the USB ports. >> However the display continues to work. >> >> <on my-machine> >> # uname -a >> Linux hauser 4.15.0-45-generic #48-Ubuntu SMP Tue Jan 29 16:28:13 UTC >> 2019 x86_64 x86_64 x86_64 GNU/Linux >> # apt install iperf3 >> # iperf3 -s >> >> <other machine> >> # apt install iperf3 >> # iperf3 -c my-machine -t 1000 # send to my machine >> # iperf3 -c my-machine -t 1000 -R # receive data from my machine >> >> When the bitrate drops to zero, look in syslog for the exception. >> >> Note: Until recently the TB-10 Ethernet would not receive full speed. >> (prior to -43 kernel) Did not see this problem before the Ethernet >> performance increased. >> >> ProblemType: Bug >> DistroRelease: Ubuntu 18.04 >> Package: linux-image-4.15.0-45-generic 4.15.0-45.48 >> ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18 >> Uname: Linux 4.15.0-45-generic x86_64 >> NonfreeKernelModules: nvidia_modeset nvidia >> ApportVersion: 2.20.9-0ubuntu7.5 >> Architecture: amd64 >> AudioDevicesInUse: >> USER PID ACCESS COMMAND >> /dev/snd/controlC0: gene 1994 F.... pulseaudio >> CurrentDesktop: ubuntu:GNOME >> Date: Wed Feb 13 13:54:28 2019 >> HibernationDevice: RESUME=UUID=d15ecb23-8691-42a1-9909-a56f934b536c >> InstallationDate: Installed on 2018-11-19 (86 days ago) >> InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 >> (20180725) >> MachineType: Dell Inc. XPS 15 9570 >> ProcFB: 0 inteldrmfb >> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-45-generic >> root=UUID=a73e2d3e-5ce3-4130-917d-d116c1316153 ro net.ifnames=0 >> mem_sleep_default=deep >> RelatedPackageVersions: >> linux-restricted-modules-4.15.0-45-generic N/A >> linux-backports-modules-4.15.0-45-generic N/A >> linux-firmware 1.173.3 >> SourcePackage: linux >> UpgradeStatus: No upgrade log present (probably fresh install) >> dmi.bios.date: 12/25/2018 >> dmi.bios.vendor: Dell Inc. >> dmi.bios.version: 1.7.0 >> dmi.board.name: 02MJVY >> dmi.board.vendor: Dell Inc. >> dmi.board.version: A00 >> dmi.chassis.type: 10 >> dmi.chassis.vendor: Dell Inc. >> dmi.modalias: >> dmi:bvnDellInc.:bvr1.7.0:bd12/25/2018:svnDellInc.:pnXPS159570:pvr:rvnDellInc.:rn02MJVY:rvrA00:cvnDellInc.:ct10:cvr: >> dmi.product.family: XPS >> dmi.product.name: XPS 15 9570 >> dmi.sys.vendor: Dell Inc. >> >> To manage notifications about this bug go to: >> >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1815808/+subscriptions >> > ** Attachment added: "usb.normal" https://bugs.launchpad.net/bugs/1815808/+attachment/5241301/+files/usb.normal ** Attachment added: "usb.crashed" https://bugs.launchpad.net/bugs/1815808/+attachment/5241302/+files/usb.crashed ** Attachment added: "dmesg.out" https://bugs.launchpad.net/bugs/1815808/+attachment/5241303/+files/dmesg.out ** Attachment added: "syslog" https://bugs.launchpad.net/bugs/1815808/+attachment/5241304/+files/syslog -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1815808 Title: Thunderbolt Ethernet high-traffic exception Status in linux package in Ubuntu: Incomplete Bug description: Running iperf3 on Dell XP-15 with TB-10 Thunderbolt dock causes a kernel exception and ethernet failure after about 30 seconds. Easy to reproduce. Connect to another machine via Gig-E and run iperf3 in either direction until the problem occurs. Should run 900+ Mb in either direction. On one occasion I also lost the USB ports. However the display continues to work. <on my-machine> # uname -a Linux hauser 4.15.0-45-generic #48-Ubuntu SMP Tue Jan 29 16:28:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux # apt install iperf3 # iperf3 -s <other machine> # apt install iperf3 # iperf3 -c my-machine -t 1000 # send to my machine # iperf3 -c my-machine -t 1000 -R # receive data from my machine When the bitrate drops to zero, look in syslog for the exception. Note: Until recently the TB-10 Ethernet would not receive full speed. (prior to -43 kernel) Did not see this problem before the Ethernet performance increased. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-45-generic 4.15.0-45.48 ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18 Uname: Linux 4.15.0-45-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gene 1994 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Wed Feb 13 13:54:28 2019 HibernationDevice: RESUME=UUID=d15ecb23-8691-42a1-9909-a56f934b536c InstallationDate: Installed on 2018-11-19 (86 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: Dell Inc. XPS 15 9570 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-45-generic root=UUID=a73e2d3e-5ce3-4130-917d-d116c1316153 ro net.ifnames=0 mem_sleep_default=deep RelatedPackageVersions: linux-restricted-modules-4.15.0-45-generic N/A linux-backports-modules-4.15.0-45-generic N/A linux-firmware 1.173.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/25/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.7.0 dmi.board.name: 02MJVY dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.7.0:bd12/25/2018:svnDellInc.:pnXPS159570:pvr:rvnDellInc.:rn02MJVY:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 15 9570 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1815808/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
