>From Upstream: "> Here is the dump before stress is started: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1627108/+attachment/4760437/+files/dump_nonbuggy
This one is ok. The dump indicates Sched Debug Version: v0.11, 4.8.0-11-generic #12~lp1627108Commit3d30544Reverted so this is without the culprit commit > > Here it is after: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1627108/+attachment/4760436/+files/dump_buggy > This one has the exact same odds values for system.slice->tg_load_avg than the 1st dump that you sent yesterday The dump indicates Sched Debug Version: v0.11, 4.8.0-22-generic #24-Ubuntu So this dump has been done with a different kernel than for the dump above. As I can't find any stress task in the dump, i tend to believe that the dump has been done before starting the stress tasks and not after starting them. Can you confirm ? If i'm right, it mean that the problem was already there before starting stress tasks." -- 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/1627108 Title: X1Carbon comes to a crawl during high CPU usage tasks Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: My X1Carbon becomes quite laggy, the cursor hangs for a few seconds and then resumes while my system is compiling some code, or lets says PyCharm is indexing things or Android Studio is compiling some code. I was using 4.4 on Xenial a few days ago and everything was working just fine. Installed Yakkety and this issue happens. TEST CASE: `stress -c 4` <-- that results in system slowness. I will downgrade the kernel and see if that mitigates the issue. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-15-generic 4.8.0-15.16 ProcVersionSignature: Ubuntu 4.8.0-15.16-generic 4.8.0-rc7 Uname: Linux 4.8.0-15-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC1D0p: om26er 3390 F...m pulseaudio /dev/snd/controlC1: om26er 3390 F.... pulseaudio /dev/snd/controlC0: om26er 3390 F.... pulseaudio CurrentDesktop: Unity Date: Fri Sep 23 21:40:34 2016 HibernationDevice: RESUME=UUID=a92c85ab-cca3-4afc-abf1-3516f193129e InstallationDate: Installed on 2016-09-21 (1 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160921) MachineType: LENOVO 20BSCTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-15-generic.efi.signed root=UUID=01b0a4a0-d791-46e8-a212-1f769cff3a4b ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.8.0-15-generic N/A linux-backports-modules-4.8.0-15-generic N/A linux-firmware 1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/13/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N14ET32W (1.10 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BSCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN14ET32W(1.10):bd08/13/2015:svnLENOVO:pn20BSCTO1WW:pvrThinkPadX1Carbon3rd:rvnLENOVO:rn20BSCTO1WW:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BSCTO1WW dmi.product.version: ThinkPad X1 Carbon 3rd dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1627108/+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