Installation of 4.14.2 https://gist.github.com/mettacrawler/7d60c8f51a19b506ea1cb575c2ed4032
-- 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/1730374 Title: NULL pointer dereference during writeback Status in linux package in Ubuntu: Incomplete Bug description: Happened during dd of 40GB LV: $ sudo dd if=/dev/vg0/gentoo of=/dev/vg1/gentoo I also used SIGUSR1 on the dd to monitor it occasionally. There was other activity at the time as well. It appears that an attempt was made to fix this in 4.10 https://patchwork.kernel.org/patch/9614353/ but it is still happening in 4.13 Nov 06 04:19:13 lakshmi kernel: BUG: unable to handle kernel NULL pointer dereference at (null) Nov 06 04:19:13 lakshmi kernel: IP: locked_inode_to_wb_and_lock_list+0x26/0x110 Nov 06 04:19:13 lakshmi kernel: PGD 0 Nov 06 04:19:14 lakshmi kernel: P4D 0 Nov 06 04:19:14 lakshmi kernel: Nov 06 04:19:14 lakshmi kernel: Oops: 0000 [#1] SMP Nov 06 04:19:14 lakshmi kernel: Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_ Nov 06 04:19:14 lakshmi kernel: async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid1 hid_g Nov 06 04:19:14 lakshmi kernel: CPU: 0 PID: 67 Comm: kswapd0 Not tainted 4.13.0-16-generic #19-Ubuntu Nov 06 04:19:14 lakshmi kernel: Hardware name: System manufacturer System Product Name/M4A89GTD-PRO/USB3, BIOS 3029 07/05/2012 Nov 06 04:19:14 lakshmi kernel: task: ffff93db5adc8000 task.stack: ffffb03b01d94000 Nov 06 04:19:14 lakshmi kernel: RIP: 0010:locked_inode_to_wb_and_lock_list+0x26/0x110 Nov 06 04:19:14 lakshmi kernel: RSP: 0018:ffffb03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0000000000000001 RSI: 0000000005080020 RDI: ffff93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP: ffffb03b01d97bf0 R08: 0000000000000000 R09: ffff93d9cd655468 Nov 06 04:19:14 lakshmi kernel: R10: 0000000000000228 R11: 0000000000000000 R12: ffff93d9758dea58 Nov 06 04:19:14 lakshmi kernel: R13: ffff93d9758deae0 R14: 0000000000000000 R15: 0000000000000059 Nov 06 04:19:14 lakshmi kernel: FS: 0000000000000000(0000) GS:ffff93db77c00000(0000) knlGS:0000000000000000 Nov 06 04:19:14 lakshmi kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Nov 06 04:19:14 lakshmi kernel: CR2: 0000000000000000 CR3: 00000001d7e08000 CR4: 00000000000006f0 Nov 06 04:19:14 lakshmi kernel: Call Trace: Nov 06 04:19:14 lakshmi kernel: inode_io_list_del+0x23/0x50 Nov 06 04:19:14 lakshmi kernel: evict+0x55/0x1a0 Nov 06 04:19:14 lakshmi kernel: dispose_list+0x39/0x50 Nov 06 04:19:14 lakshmi kernel: prune_icache_sb+0x5a/0x80 Nov 06 04:19:14 lakshmi kernel: super_cache_scan+0x134/0x1b0 Nov 06 04:19:14 lakshmi kernel: shrink_slab.part.48+0x1d6/0x3d0 Nov 06 04:19:14 lakshmi kernel: shrink_slab+0x1b/0x30 Nov 06 04:19:14 lakshmi kernel: shrink_node+0x11e/0x300 Nov 06 04:19:14 lakshmi kernel: kswapd+0x2cc/0x750 Nov 06 04:19:14 lakshmi kernel: kthread+0x125/0x140 Nov 06 04:19:14 lakshmi kernel: ? mem_cgroup_shrink_node+0x180/0x180 Nov 06 04:19:14 lakshmi kernel: ? kthread_create_on_node+0x70/0x70 Nov 06 04:19:14 lakshmi kernel: ret_from_fork+0x25/0x30 Nov 06 04:19:14 lakshmi kernel: Code: 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 53 4c 8d af 88 00 00 00 49 89 fc Nov 06 04:19:14 lakshmi kernel: RIP: locked_inode_to_wb_and_lock_list+0x26/0x110 RSP: ffffb03b01d97bc8 Nov 06 04:19:14 lakshmi kernel: CR2: 0000000000000000 Nov 06 04:19:14 lakshmi kernel: ---[ end trace 5aa11bcf674e53cc ]--- ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ksta 3322 F.... pulseaudio /dev/snd/controlC0: ksta 3322 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Mon Nov 6 06:59:50 2017 HibernationDevice: RESUME=/dev/mapper/vg1-swap InstallationDate: Installed on 2017-11-05 (0 days ago) InstallationMedia: Ubuntu-Server 17.10 "Artful Aardvark" - Release amd64 (20171017.1) MachineType: System manufacturer System Product Name ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-generic root=/dev/mapper/vg1-root ro RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/05/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3029 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A89GTD-PRO/USB3 dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3029:bd07/05/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A89GTD-PRO/USB3:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1730374/+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
