I've bisected the problem down to commit
c35a4a858d0616e7817026d88f377c7201ad449a ("block: fix an integer
overflow in logical block size", upstream
ad6bf88a6c19a39fb3b0045d78ea880325dfcf15).I don't know what the exact problem is with the commit, but seems to be in the area of fs/block_dev.c set_init_blocksize() calling bdev_logical_block_size() which the offending commit touches. # bad: [a78d21bd8bb58c158f73108eb7d7402619fcae3d] UBUNTU: Ubuntu-4.15.0-91.92 # good: [d5b8ff45eabff3cb2232a2eea38a862edc647ab8] UBUNTU: Ubuntu-4.15.0-88.88 git bisect start 'Ubuntu-4.15.0-91.92' 'Ubuntu-4.15.0-88.88' # bad: [c04c6d87ca3a7e2c8019e0a2349fcf1175ffcce0] KVM: PPC: Release all hardware TCE tables attached to a group git bisect bad c04c6d87ca3a7e2c8019e0a2349fcf1175ffcce0 # good: [9a6b3cea5792f94f03f579c668a60eb4ddd209f0] dt-bindings: reset: meson8b: fix duplicate reset IDs git bisect good 9a6b3cea5792f94f03f579c668a60eb4ddd209f0 # bad: [6783f1bf22bb55bcd2628d7cabeacc9c720971e6] ALSA: usb-audio: update quirk for B&W PX to remove microphone git bisect bad 6783f1bf22bb55bcd2628d7cabeacc9c720971e6 # skip: [c4099e7e88621e82a5b3a5b0a2e3d6d8eee4e8e0] ptp: free ptp device pin descriptors properly git bisect skip c4099e7e88621e82a5b3a5b0a2e3d6d8eee4e8e0 # bad: [3222d8b5d803ed733dba2da03b595cf90c871fe6] drm/nouveau/mmu: qualify vmm during dtor git bisect bad 3222d8b5d803ed733dba2da03b595cf90c871fe6 # skip: [3db4efba8dea644e54e339ac2e46b497aea93638] NFC: pn533: fix bulk-message timeout git bisect skip 3db4efba8dea644e54e339ac2e46b497aea93638 # skip: [211ff6ef5f2f19d86d35dcbb94d4b09ab7de00fc] batman-adv: Fix DAT candidate selection on little endian systems git bisect skip 211ff6ef5f2f19d86d35dcbb94d4b09ab7de00fc # skip: [3cb4cbc154b57c2fb842fbacc6ea4bd625ce680f] perf hists: Fix variable name's inconsistency in hists__for_each() macro git bisect skip 3cb4cbc154b57c2fb842fbacc6ea4bd625ce680f # good: [1d9d2aae71b2d1c18d7d69c4850ca57ebd1e6fc1] clk: Don't try to enable critical clocks if prepare failed git bisect good 1d9d2aae71b2d1c18d7d69c4850ca57ebd1e6fc1 # skip: [37f1c7c4bf8eaf03f0e07152f55e0dda97bd52e8] cfg80211: check for set_wiphy_params git bisect skip 37f1c7c4bf8eaf03f0e07152f55e0dda97bd52e8 # good: [43cdcecf3a1bd5fdf9cbce0f3908cdde789c7ffd] ALSA: seq: Fix racy access for queue timer in proc read git bisect good 43cdcecf3a1bd5fdf9cbce0f3908cdde789c7ffd # bad: [7a10b28e6122e12323da46732fc345d476a21829] ARM: dts: am571x-idk: Fix gpios property to have the correct gpio number git bisect bad 7a10b28e6122e12323da46732fc345d476a21829 # good: [31e3c075719a3afe5ffd2b9b8e1f18e07255bd96] Fix built-in early-load Intel microcode alignment git bisect good 31e3c075719a3afe5ffd2b9b8e1f18e07255bd96 # bad: [c35a4a858d0616e7817026d88f377c7201ad449a] block: fix an integer overflow in logical block size git bisect bad c35a4a858d0616e7817026d88f377c7201ad449a # first bad commit: [c35a4a858d0616e7817026d88f377c7201ad449a] block: fix an integer overflow in logical block size -- 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/1867916 Title: Regression in kernel 4.15.0-91 causes kernel panic with Bcache Status in linux package in Ubuntu: In Progress Bug description: After upgrading from kernel 4.15.0-88 to 4.15.0-91 one of our systems does not boot any longer. It always crashes during boot with a kernel panic. I suspect that this crash might be related to Bcache because this is the only one of our systems where we use Bcache and the kernel panic appears right after Bcache initialization. I already checked that this bug still exists in the 4.15.0-92.93 kernel from proposed. Unfortunately, I cannot do a bisect because this is a critical production system and we do not have any other system with a similar configuration. I attached a screenshot with the trace of the kernel panic. The last message that appears before the kernel panic (or rather the last one that I can see - there is a rather long pause between that message and the panic and I cannot scroll up far enough to ensure that there are no other messages in between) is: bcache: register_bcache() error /dev/dm-0: device already registered When booting with kernel 4.15.0-88 that does not have this problem, the next message is bcache: register_bcache() error /dev/dm-12: device already registered (emitting change event) After that the next message is: Begin: Loading essential drivers ... done This message also appears after the kernel panic, but the boot process stalls and the system can only be recovered by doing a hardware reset. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-88-generic 4.15.0-88.88 ProcVersionSignature: Ubuntu 4.15.0-88.88-generic 4.15.18 Uname: Linux 4.15.0-88-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Mar 17 21:08 seq crw-rw---- 1 root audio 116, 33 Mar 17 21:08 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.11 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Wed Mar 18 12:55:18 2020 HibernationDevice: RESUME=UUID=40512ea2-9fce-40f5-8362-5daf955cc26a InstallationDate: Installed on 2013-07-02 (2450 days ago) InstallationMedia: Ubuntu-Server 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130214) MachineType: HP ProLiant DL160 G6 PciMultimedia: ProcFB: 0 mgadrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-88-generic root=/dev/mapper/vg0-root ro nosmt nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw RelatedPackageVersions: linux-restricted-modules-4.15.0-88-generic N/A linux-backports-modules-4.15.0-88-generic N/A linux-firmware 1.173.16 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-09-23 (541 days ago) dmi.bios.date: 11/06/2009 dmi.bios.vendor: HP dmi.bios.version: O33 dmi.chassis.asset.tag: 0191525 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrO33:bd11/06/2009:svnHP:pnProLiantDL160G6:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL160 G6 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1867916/+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
