Public bug reported: Upstream commit f707d6b9e7c18f669adfdb443906d46cfbaaa0c1 added a race condition in the i2c_i801 driver that predictably causes a panic (if panic_on_oops=1) or crashes udev during boot in certain circumstances.
This is present beginning in Ubuntu kernel 6.8, it is present in all kernels until upstream commit cfc69c2e6c699c96949f7b0455195b0bfb7dc715. This has been ported into the upstream stable kernel trees and I am requesting it be added to the queue for 22.04 HWE, 24.04, and any supported non-LTS releases if possible. See also: https://lore.kernel.org/linux-i2c/[email protected]/ ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-6.8.0-106-generic 6.8.0-106.106~22.04.1 ProcVersionSignature: Ubuntu 6.8.0-106.106~22.04.1-generic 6.8.12 Uname: Linux 6.8.0-106-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Mar 19 21:00 seq crw-rw---- 1 root audio 116, 33 Mar 19 21:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu82.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: pass CloudArchitecture: x86_64 CloudID: none CloudName: none CloudPlatform: none CloudSubPlatform: config Date: Thu Mar 19 21:02:27 2026 InstallationDate: Installed on 2026-03-19 (0 days ago) InstallationMedia: Ubuntu-Server 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240216.1) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: XXXXXXXXX PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-106-generic root=UUID=980dc1f4-469f-434f-ada9-ff07546d14de ro modprobe.blacklist=i2c_i801 RelatedPackageVersions: linux-restricted-modules-6.8.0-106-generic N/A linux-backports-modules-6.8.0-106-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.41 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux-hwe-6.8 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/30/2022 dmi.bios.release: 5.11 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.20.10.XXXXX dmi.board.asset.tag: Default string dmi.board.name: To be filled by O.E.M. dmi.board.vendor: XXXXXXXXXXX dmi.board.version: To be filled by O.E.M. dmi.chassis.asset.tag: XXXXXXXXXXXXXX dmi.chassis.type: 23 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.20.10.SV90:bd08/30/2022:br5.11:XXXXXXX:XXXXXXX:pvrDefaultstring:XXXXXXXXXX:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnDefaultstring:ct23:cvrDefaultstring:sku: dmi.product.family: Default string dmi.product.name: XXXXXXXX dmi.product.version: Default string dmi.sys.vendor: XXXXXXXX ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Affects: linux-hwe-6.8 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug jammy uec-images ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Attachment removed: "CurrentDmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2144950/+attachment/5954109/+files/CurrentDmesg.txt ** Attachment removed: "Lsusb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2144950/+attachment/5954113/+files/Lsusb.txt ** Attachment removed: "Lsusb-v.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2144950/+attachment/5954115/+files/Lsusb-v.txt ** Description changed: Upstream commit f707d6b9e7c18f669adfdb443906d46cfbaaa0c1 added a race condition in the i2c_i801 driver that predictably causes a panic (if panic_on_oops=1) or crashes udev during boot in certain circumstances. This is present beginning in Ubuntu kernel 6.8, it is present in all kernels until upstream commit cfc69c2e6c699c96949f7b0455195b0bfb7dc715. This has been ported into the upstream stable kernel trees and I am requesting it be added to the queue for 22.04 HWE, 24.04, and any supported non-LTS releases if possible. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-6.8.0-106-generic 6.8.0-106.106~22.04.1 ProcVersionSignature: Ubuntu 6.8.0-106.106~22.04.1-generic 6.8.12 Uname: Linux 6.8.0-106-generic x86_64 AlsaDevices: - total 0 - crw-rw---- 1 root audio 116, 1 Mar 19 21:00 seq - crw-rw---- 1 root audio 116, 33 Mar 19 21:00 timer + total 0 + crw-rw---- 1 root audio 116, 1 Mar 19 21:00 seq + crw-rw---- 1 root audio 116, 33 Mar 19 21:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu82.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: pass CloudArchitecture: x86_64 CloudID: none CloudName: none CloudPlatform: none CloudSubPlatform: config Date: Thu Mar 19 21:02:27 2026 InstallationDate: Installed on 2026-03-19 (0 days ago) InstallationMedia: Ubuntu-Server 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240216.1) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' - MachineType: PacStar PS451 + MachineType: XXXXXXXXX PciMultimedia: - + ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm-256color + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-106-generic root=UUID=980dc1f4-469f-434f-ada9-ff07546d14de ro modprobe.blacklist=i2c_i801 RelatedPackageVersions: - linux-restricted-modules-6.8.0-106-generic N/A - linux-backports-modules-6.8.0-106-generic N/A - linux-firmware 20220329.git681281e4-0ubuntu3.41 + linux-restricted-modules-6.8.0-106-generic N/A + linux-backports-modules-6.8.0-106-generic N/A + linux-firmware 20220329.git681281e4-0ubuntu3.41 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux-hwe-6.8 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/30/2022 dmi.bios.release: 5.11 dmi.bios.vendor: American Megatrends Inc. - dmi.bios.version: 1.20.10.SV90 + dmi.bios.version: 1.20.10.XXXXX dmi.board.asset.tag: Default string dmi.board.name: To be filled by O.E.M. - dmi.board.vendor: PacStar + dmi.board.vendor: XXXXXXXXXXX dmi.board.version: To be filled by O.E.M. - dmi.chassis.asset.tag: 451012311898D + dmi.chassis.asset.tag: XXXXXXXXXXXXXX dmi.chassis.type: 23 dmi.chassis.vendor: Default string dmi.chassis.version: Default string - dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.20.10.SV90:bd08/30/2022:br5.11:svnPacStar:pnPS451:pvrDefaultstring:rvnPacStar:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnDefaultstring:ct23:cvrDefaultstring:sku: + dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.20.10.SV90:bd08/30/2022:br5.11:XXXXXXX:XXXXXXX:pvrDefaultstring:XXXXXXXXXX:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnDefaultstring:ct23:cvrDefaultstring:sku: dmi.product.family: Default string - dmi.product.name: PS451 + dmi.product.name: XXXXXXXX dmi.product.version: Default string - dmi.sys.vendor: PacStar + dmi.sys.vendor: XXXXXXXX ** Attachment removed: "UdevDb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2144950/+attachment/5954120/+files/UdevDb.txt ** Attachment removed: "WifiSyslog.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2144950/+attachment/5954121/+files/WifiSyslog.txt ** Description changed: Upstream commit f707d6b9e7c18f669adfdb443906d46cfbaaa0c1 added a race condition in the i2c_i801 driver that predictably causes a panic (if panic_on_oops=1) or crashes udev during boot in certain circumstances. This is present beginning in Ubuntu kernel 6.8, it is present in all kernels until upstream commit cfc69c2e6c699c96949f7b0455195b0bfb7dc715. This has been ported into the upstream stable kernel trees and I am requesting it be added to the queue for 22.04 HWE, 24.04, and any supported non-LTS releases if possible. + + See also: + https://lore.kernel.org/linux-i2c/[email protected]/ ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-6.8.0-106-generic 6.8.0-106.106~22.04.1 ProcVersionSignature: Ubuntu 6.8.0-106.106~22.04.1-generic 6.8.12 Uname: Linux 6.8.0-106-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Mar 19 21:00 seq crw-rw---- 1 root audio 116, 33 Mar 19 21:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu82.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: pass CloudArchitecture: x86_64 CloudID: none CloudName: none CloudPlatform: none CloudSubPlatform: config Date: Thu Mar 19 21:02:27 2026 InstallationDate: Installed on 2026-03-19 (0 days ago) InstallationMedia: Ubuntu-Server 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240216.1) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: XXXXXXXXX PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-106-generic root=UUID=980dc1f4-469f-434f-ada9-ff07546d14de ro modprobe.blacklist=i2c_i801 RelatedPackageVersions: linux-restricted-modules-6.8.0-106-generic N/A linux-backports-modules-6.8.0-106-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.41 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux-hwe-6.8 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/30/2022 dmi.bios.release: 5.11 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.20.10.XXXXX dmi.board.asset.tag: Default string dmi.board.name: To be filled by O.E.M. dmi.board.vendor: XXXXXXXXXXX dmi.board.version: To be filled by O.E.M. dmi.chassis.asset.tag: XXXXXXXXXXXXXX dmi.chassis.type: 23 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.20.10.SV90:bd08/30/2022:br5.11:XXXXXXX:XXXXXXX:pvrDefaultstring:XXXXXXXXXX:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnDefaultstring:ct23:cvrDefaultstring:sku: dmi.product.family: Default string dmi.product.name: XXXXXXXX dmi.product.version: Default string dmi.sys.vendor: XXXXXXXX -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2144950 Title: i2c_i801 regression crashes udev in certain situations To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2144950/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
