Hm.. it's not trivial to revert that commit, because it depends on other subsystem changes. I was thinking that we may actually corrupt the stack because elantech_create_smbus() is using too much stack. How about allocating that i2c_props array in the heap. See the patch in attach.
** Patch added: "0001-Input-elantech-reduce-stack-usage-in-elantech_create.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1945590/+attachment/5531669/+files/0001-Input-elantech-reduce-stack-usage-in-elantech_create.patch -- 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/1945590 Title: Thinkpad E14 Gen2: Kernel panic with trackpad and trackpoint enabled Status in linux package in Ubuntu: Confirmed Status in linux source package in Impish: Confirmed Bug description: I installed the Ubuntu 21.10 beta and as soon as I boot I get the kernel panic that I am attaching. I also installed Ubuntu 21.04 and upgraded, as soon as I boot with the 5.13 kernel I get the same problem, disabling the trackpad and trackpoint in the bios the problem disappears. Everything works with the 5.11 kernel. I remain available for further details and sorry for my lack of experience. ProblemType: Bug DistroRelease: Ubuntu 21.10 Package: linux-image-5.13.0-16-generic 5.13.0-16.16 ProcVersionSignature: Ubuntu 5.13.0-16.16-generic 5.13.13 Uname: Linux 5.13.0-16-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu69 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: pietro 1810 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Thu Sep 30 10:26:10 2021 InstallationDate: Installed on 2021-09-29 (0 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) MachineType: LENOVO 20TA0033IX ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=it_IT.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-16-generic root=UUID=b5ea9465-4cd9-408b-8e30-458acf90181b ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.13.0-16-generic N/A linux-backports-modules-5.13.0-16-generic N/A linux-firmware 1.201 SourcePackage: linux UpgradeStatus: Upgraded to impish on 2021-09-29 (0 days ago) dmi.bios.date: 09/02/2021 dmi.bios.release: 1.43 dmi.bios.vendor: LENOVO dmi.bios.version: R1EET43W(1.43 ) dmi.board.asset.tag: Not Available dmi.board.name: 20TA0033IX dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.43 dmi.modalias: dmi:bvnLENOVO:bvrR1EET43W(1.43):bd09/02/2021:br1.43:efr1.43:svnLENOVO:pn20TA0033IX:pvrThinkPadE14Gen2:skuLENOVO_MT_20TA_BU_Think_FM_ThinkPadE14Gen2:rvnLENOVO:rn20TA0033IX:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad E14 Gen 2 dmi.product.name: 20TA0033IX dmi.product.sku: LENOVO_MT_20TA_BU_Think_FM_ThinkPad E14 Gen 2 dmi.product.version: ThinkPad E14 Gen 2 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1945590/+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
