@P.D. That's surprising. In that case, it means the offending commit is "325f8e18c8ac drm/i915/ringbuffer: Delay after EMIT_INVALIDATE for gen4/gen5". I was expecting the offending commit to be "d8370b8fbadf drm/i915/execlists: Force write serialisation into context image vs execution" because that appears to have been identified upstream as causing a regression with symptoms similar to what you're experiencing (the regression has upstream commit ID 987abd5c62f9 and the fix for it is https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cf66b8a0ba142fbd1bf10ac8f3ae92d1b0cb7b8f )
I had built a kernel with the upstream fix for you to test and was expecting it would fix your problem. Do you mind trying it anyway to confirm that it does NOT fix your problem? That kernel is built from commit: 619b700ded65 drm/i915/execlists: Apply a full mb before execution for Braswell and can be found at: https://kernel.ubuntu.com/~kmously/1813657/kernel-kmously-619b700-ouqM/ Thanks. -- 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/1813657 Title: 4.18.0-14 doesn't boot past grub Status in linux package in Ubuntu: Confirmed Bug description: 4.18.0-14 doesn't boot past grub for me in thinkpad t510i. 4.18.0-13 worked fine. I had to revert back to 4.15 kernel. I'm using a distro that is based off of Ubuntu 18.04. System info: CPU: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz 4 cores/threads 2400.00 MHz RAM: 7.59 GiB I'm not sure how to provide crash info, as the kernel doesn't boot. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 CurrentDesktop: X-Cinnamon DistroRelease: Linux Mint 19.1 HibernationDevice: RESUME=UUID=fcc2ec6a-a02c-4188-ac0d-a8f924741962 InstallationDate: Installed on 2019-01-10 (18 days ago) InstallationMedia: Linux Mint 19.1 "Tessa" - Release amd64 20181130 Lsusb: Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 0a5c:21e8 Broadcom Corp. BCM20702A0 Bluetooth 4.0 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 4349BR8 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-44-generic root=UUID=3478dfd0-edae-424a-a34f-9f230cb9cacc ro quiet splash ProcVersionSignature: Ubuntu 4.15.0-44.47-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-44-generic N/A linux-backports-modules-4.15.0-44-generic N/A linux-firmware 1.173.3 Tags: tessa Uname: Linux 4.15.0-44-generic x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers wireshark _MarkForUpload: False dmi.bios.date: 10/26/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6MET81WW (1.41 ) dmi.board.name: 4349BR8 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6MET81WW(1.41):bd10/26/2010:svnLENOVO:pn4349BR8:pvrThinkPadT510:rvnLENOVO:rn4349BR8:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.family: ThinkPad T510 dmi.product.name: 4349BR8 dmi.product.version: ThinkPad T510 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813657/+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
