[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
I no longer am using the motherboard, CPU and RAM that this happened on. I am using 4.15.0-13-generic on 18.04 now. -- 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: Confirmed Bug description: This could be part of CVE-2016-3070 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: [#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 302907/05/2012 Nov 06 04:19:14 lakshmi kernel: task: 93db5adc8000 task.stack: b03b01d94000 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:b03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: RBX: RCX: 93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP: b03b01d97bf0 R08: R09: 93d9cd655468 Nov 06 04:19:14 lakshmi kernel: R10: 0228 R11: R12: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: R13: 93d9758deae0 R14: R15: 0059 Nov 06 04:19:14 lakshmi kernel: FS: () GS:93db77c0() knlGS: Nov 06 04:19:14 lakshmi kernel: CS: 0010 DS: ES: CR0: 80050033 Nov 06 04:19:14 lakshmi kernel: CR2: CR3: 0001d7e08000 CR4: 06f0 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: b03b01d97bc8 Nov 06 04:19:14 lakshmi kernel: CR2: 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: USERPID 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= 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
[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
** Tags added: kernel-bug -- 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: Confirmed Bug description: This could be part of CVE-2016-3070 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: [#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 302907/05/2012 Nov 06 04:19:14 lakshmi kernel: task: 93db5adc8000 task.stack: b03b01d94000 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:b03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: RBX: RCX: 93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP: b03b01d97bf0 R08: R09: 93d9cd655468 Nov 06 04:19:14 lakshmi kernel: R10: 0228 R11: R12: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: R13: 93d9758deae0 R14: R15: 0059 Nov 06 04:19:14 lakshmi kernel: FS: () GS:93db77c0() knlGS: Nov 06 04:19:14 lakshmi kernel: CS: 0010 DS: ES: CR0: 80050033 Nov 06 04:19:14 lakshmi kernel: CR2: CR3: 0001d7e08000 CR4: 06f0 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: b03b01d97bc8 Nov 06 04:19:14 lakshmi kernel: CR2: 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: USERPID 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= 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:
[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
** Description changed: + This could be part of CVE-2016-3070 + 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: [#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 302907/05/2012 Nov 06 04:19:14 lakshmi kernel: task: 93db5adc8000 task.stack: b03b01d94000 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:b03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: RBX: RCX: 93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP: b03b01d97bf0 R08: R09: 93d9cd655468 Nov 06 04:19:14 lakshmi kernel: R10: 0228 R11: R12: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: R13: 93d9758deae0 R14: R15: 0059 Nov 06 04:19:14 lakshmi kernel: FS: () GS:93db77c0() knlGS: Nov 06 04:19:14 lakshmi kernel: CS: 0010 DS: ES: CR0: 80050033 Nov 06 04:19:14 lakshmi kernel: CR2: CR3: 0001d7e08000 CR4: 06f0 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: b03b01d97bc8 Nov 06 04:19:14 lakshmi kernel: CR2: 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: USERPID 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= 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:
[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
It happened again. $ uname -r 4.14.9-041409-generic Dec 29 14:32:14 lakshmi kernel: BUG: unable to handle kernel NULL pointer dereference at (null) Dec 29 14:32:14 lakshmi kernel: IP: locked_inode_to_wb_and_lock_list+0x20/0x110 Dec 29 14:32:14 lakshmi kernel: PGD 0 P4D 0 Dec 29 14:32:14 lakshmi kernel: Oops: [#1] SMP Dec 29 14:32:14 lakshmi kernel: Modules linked in: uas usb_storage nfnetlink bluetooth ecdh_generic isofs xt_CHECKSUM Dec 29 14:32:14 lakshmi kernel: lp parport ip_tables x_tables autofs4 xfs btrfs zstd_compress raid10 raid456 async_ra Dec 29 14:32:14 lakshmi kernel: CPU: 4 PID: 67 Comm: kswapd0 Not tainted 4.14.9-041409-generic #201712251541 Dec 29 14:32:14 lakshmi kernel: Hardware name: System manufacturer System Product Name/M4A89GTD-PRO/USB3, BIOS 3029 Dec 29 14:32:14 lakshmi kernel: task: 9ab5e4c195c0 task.stack: a9a5c1da Dec 29 14:32:14 lakshmi kernel: RIP: 0010:locked_inode_to_wb_and_lock_list+0x20/0x110 Dec 29 14:32:14 lakshmi kernel: RSP: 0018:a9a5c1da3c38 EFLAGS: 00010292 Dec 29 14:32:14 lakshmi kernel: RAX: RBX: RCX: a9a5c1da3cb0 Dec 29 14:32:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 9ab3f58dea58 Dec 29 14:32:14 lakshmi kernel: RBP: 9ab3f58dea58 R08: R09: 9ab3f5992b38 Dec 29 14:32:14 lakshmi kernel: R10: R11: 0228 R12: 9ab3f58deae0 Dec 29 14:32:14 lakshmi kernel: R13: 9ab5da2d9000 R14: R15: 0265 Dec 29 14:32:14 lakshmi kernel: FS: () GS:9ab5f7d0() knlGS: Dec 29 14:32:14 lakshmi kernel: CS: 0010 DS: ES: CR0: 80050033 Dec 29 14:32:14 lakshmi kernel: CR2: CR3: 00041a0cb000 CR4: 06e0 Dec 29 14:32:14 lakshmi kernel: Call Trace: Dec 29 14:32:14 lakshmi kernel: inode_io_list_del+0x1e/0x40 Dec 29 14:32:14 lakshmi kernel: evict+0x50/0x190 Dec 29 14:32:14 lakshmi kernel: dispose_list+0x35/0x50 Dec 29 14:32:14 lakshmi kernel: prune_icache_sb+0x52/0x70 Dec 29 14:32:14 lakshmi kernel: super_cache_scan+0x124/0x1a0 Dec 29 14:32:14 lakshmi kernel: shrink_slab.part.50+0x1de/0x3d0 Dec 29 14:32:14 lakshmi kernel: shrink_node+0x123/0x310 Dec 29 14:32:14 lakshmi kernel: kswapd+0x29f/0x6f0 Dec 29 14:32:14 lakshmi kernel: ? mem_cgroup_shrink_node+0x190/0x190 Dec 29 14:32:14 lakshmi kernel: kthread+0x118/0x130 Dec 29 14:32:14 lakshmi kernel: ? kthread_create_on_node+0x70/0x70 Dec 29 14:32:14 lakshmi kernel: ret_from_fork+0x1f/0x30 Dec 29 14:32:14 lakshmi kernel: Code: 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 55 41 54 4c 8d a7 88 00 00 00 Dec 29 14:32:14 lakshmi kernel: RIP: locked_inode_to_wb_and_lock_list+0x20/0x110 RSP: a9a5c1da3c38 Dec 29 14:32:14 lakshmi kernel: CR2: Dec 29 14:32:14 lakshmi kernel: ---[ end trace 40202702d10d2b9b ]--- ** Changed in: linux (Ubuntu) Status: Incomplete => New -- 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: New 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: [#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 302907/05/2012 Nov 06 04:19:14 lakshmi kernel: task: 93db5adc8000 task.stack: b03b01d94000 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:b03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: RBX: RCX: 93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP:
[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
It's likely that this was either fixed upstream or the root cause is from a patch that was put on the 4.13 kernels that the 4.14 kernels don't have. Nov 05 22:15:30 lakshmi kernel: Linux version 4.13.0-16-generic (buildd@lcy01-02) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu2)) #19-Ubuntu SMP Wed Oct 11 18:35:14 UTC 2017 (Ubuntu 4.13.0-16.19-generic 4.13.4) Nov 06 04:19:13 lakshmi kernel: BUG: unable to handle kernel NULL pointer dereference at (null) Nov 06 04:53:36 lakshmi kernel: Linux version 4.13.0-16-generic (buildd@lcy01-02) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu2)) #19-Ubuntu SMP Wed Oct 11 18:35:14 UTC 2017 (Ubuntu 4.13.0-16.19-generic 4.13.4) Nov 12 14:21:07 lakshmi kernel: BUG: unable to handle kernel paging request at 1000 Nov 16 08:03:01 lakshmi kernel: Linux version 4.13.0-16-generic (buildd@lcy01-02) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu2)) #19-Ubuntu SMP Wed Oct 11 18:35:14 UTC 2017 (Ubuntu 4.13.0-16.19-generic 4.13.4) Nov 23 06:20:38 lakshmi kernel: BUG: unable to handle kernel NULL pointer dereference at (null) Nov 23 07:12:24 lakshmi kernel: Linux version 4.13.0-17-generic (buildd@lcy01-amd64-011) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3)) #20-Ubuntu SMP Mon Nov 6 10:04:08 UTC 2017 (Ubuntu 4.13.0-17.20-generic 4.13.8) Nov 28 06:45:45 lakshmi kernel: Linux version 4.14.2-041402-generic (kernel@tangerine) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3)) #201711240330 SMP Fri Nov 24 08:32:52 UTC 2017 Dec 01 19:56:41 lakshmi kernel: Linux version 4.14.3-041403-generic (kernel@tangerine) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3)) #201711300431 SMP Thu Nov 30 09:32:55 UTC 2017 Dec 08 14:14:31 lakshmi kernel: Linux version 4.14.4-041404-generic (kernel@tangerine) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3)) #201712050630 SMP Tue Dec 5 11:34:06 UTC 2017 Dec 13 06:32:14 lakshmi kernel: Linux version 4.14.5-041405-generic (kernel@kathleen) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3)) #201712101332 SMP Sun Dec 10 13:33:10 UTC 2017 -- 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: [#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 302907/05/2012 Nov 06 04:19:14 lakshmi kernel: task: 93db5adc8000 task.stack: b03b01d94000 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:b03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: RBX: RCX: 93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP: b03b01d97bf0 R08: R09: 93d9cd655468 Nov 06 04:19:14 lakshmi kernel: R10: 0228 R11: R12: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: R13: 93d9758deae0 R14: R15: 0059 Nov 06 04:19:14 lakshmi kernel: FS: () GS:93db77c0() knlGS: Nov 06 04:19:14 lakshmi kernel: CS: 0010 DS: ES: CR0: 80050033 Nov 06 04:19:14 lakshmi kernel: CR2: CR3: 0001d7e08000 CR4: 06f0 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
[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
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: [#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 302907/05/2012 Nov 06 04:19:14 lakshmi kernel: task: 93db5adc8000 task.stack: b03b01d94000 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:b03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: RBX: RCX: 93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP: b03b01d97bf0 R08: R09: 93d9cd655468 Nov 06 04:19:14 lakshmi kernel: R10: 0228 R11: R12: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: R13: 93d9758deae0 R14: R15: 0059 Nov 06 04:19:14 lakshmi kernel: FS: () GS:93db77c0() knlGS: Nov 06 04:19:14 lakshmi kernel: CS: 0010 DS: ES: CR0: 80050033 Nov 06 04:19:14 lakshmi kernel: CR2: CR3: 0001d7e08000 CR4: 06f0 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: b03b01d97bc8 Nov 06 04:19:14 lakshmi kernel: CR2: 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: USERPID 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= 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
[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
I was unable to reproduce this on 4.13 until Nov 23 when it happened
again.
This time the logs show that I was handling PDF files via Nautilus which
doesn't imply as much disk I/O as the previous 40G dd did.
A quote from:
https://patchwork.kernel.org/patch/9614361/
{{ I am able to reproduce the problem by adding articial [artificial] delays in
__blkdev_put() and writeback_sb_inodes(). Please see the repro patch
below: }}
Nov 23 06:20:38 lakshmi kernel: BUG: unable to handle kernel NULL pointer
dereference at (null)
Nov 23 06:20:38 lakshmi kernel: IP: locked_inode_to_wb_and_lock_list+0x26/0x110
Nov 23 06:20:38 lakshmi kernel: PGD 0
Nov 23 06:20:39 lakshmi kernel: P4D 0
Nov 23 06:20:39 lakshmi kernel:
Nov 23 06:20:39 lakshmi kernel: Oops: [#1] SMP
Nov 23 06:20:39 lakshmi kernel: Modules linked in: ufs qnx4 hfsplus hfs minix
ntfs msdos jfs vhost_net vhost tap uas usb_storage xt_C
Nov 23 06:20:39 lakshmi kernel: ppdev lp parport ip_tables x_tables autofs4
xfs btrfs raid10 raid456 async_raid6_recov async_memcpy
Nov 23 06:20:39 lakshmi kernel: CPU: 2 PID: 67 Comm: kswapd0 Not tainted
4.13.0-16-generic #19-Ubuntu
Nov 23 06:20:39 lakshmi kernel: Hardware name: System manufacturer System
Product Name/M4A89GTD-PRO/USB3, BIOS 302907/05/2012
Nov 23 06:20:39 lakshmi kernel: task: 99631ae28000 task.stack:
b98741d98000
Nov 23 06:20:39 lakshmi kernel: RIP:
0010:locked_inode_to_wb_and_lock_list+0x26/0x110
Nov 23 06:20:39 lakshmi kernel: RSP: 0018:b98741d9bbc8 EFLAGS: 00010292
Nov 23 06:20:39 lakshmi kernel: RAX: RBX:
RCX: 9961358ddc68
Nov 23 06:20:39 lakshmi kernel: RDX: 0001 RSI: 05080020
RDI: 9961358dea58
Nov 23 06:20:39 lakshmi kernel: RBP: b98741d9bbf0 R08:
R09: 99629957efc8
Nov 23 06:20:39 lakshmi kernel: R10: 0228 R11: 99629957cd90
R12: 9961358dea58
Nov 23 06:20:39 lakshmi kernel: R13: 9961358deae0 R14:
R15: 00e3
Nov 23 06:20:39 lakshmi kernel: FS: ()
GS:996337c8() knlGS:
Nov 23 06:20:39 lakshmi kernel: CS: 0010 DS: ES: CR0:
80050033
Nov 23 06:20:39 lakshmi kernel: CR2: CR3: 000292009000
CR4: 06e0
Nov 23 06:20:39 lakshmi kernel: Call Trace:
Nov 23 06:20:39 lakshmi kernel: inode_io_list_del+0x23/0x50
Nov 23 06:20:39 lakshmi kernel: evict+0x55/0x1a0
Nov 23 06:20:39 lakshmi kernel: dispose_list+0x39/0x50
Nov 23 06:20:39 lakshmi kernel: prune_icache_sb+0x5a/0x80
Nov 23 06:20:39 lakshmi kernel: super_cache_scan+0x134/0x1b0
Nov 23 06:20:39 lakshmi kernel: shrink_slab.part.48+0x1d6/0x3d0
Nov 23 06:20:39 lakshmi kernel: shrink_slab+0x1b/0x30
Nov 23 06:20:39 lakshmi kernel: shrink_node+0x11e/0x300
Nov 23 06:20:39 lakshmi kernel: kswapd+0x2cc/0x750
Nov 23 06:20:39 lakshmi kernel: kthread+0x125/0x140
Nov 23 06:20:39 lakshmi kernel: ? mem_cgroup_shrink_node+0x180/0x180
Nov 23 06:20:39 lakshmi kernel: ? kthread_create_on_node+0x70/0x70
Nov 23 06:20:39 lakshmi kernel: ret_from_fork+0x25/0x30
Nov 23 06:20:39 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 48
Nov 23 06:20:39 lakshmi kernel: RIP:
locked_inode_to_wb_and_lock_list+0x26/0x110 RSP: b98741d9bbc8
Nov 23 06:20:39 lakshmi kernel: CR2:
Nov 23 06:20:39 lakshmi kernel: ---[ end trace c0c5ab8e419a23c0 ]---
I'm going to put on 4.14.2 and see
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14.2/
--
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: [#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
[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
Eventually I'll have time to test the upstream kernel. -- 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: [#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 302907/05/2012 Nov 06 04:19:14 lakshmi kernel: task: 93db5adc8000 task.stack: b03b01d94000 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:b03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: RBX: RCX: 93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP: b03b01d97bf0 R08: R09: 93d9cd655468 Nov 06 04:19:14 lakshmi kernel: R10: 0228 R11: R12: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: R13: 93d9758deae0 R14: R15: 0059 Nov 06 04:19:14 lakshmi kernel: FS: () GS:93db77c0() knlGS: Nov 06 04:19:14 lakshmi kernel: CS: 0010 DS: ES: CR0: 80050033 Nov 06 04:19:14 lakshmi kernel: CR2: CR3: 0001d7e08000 CR4: 06f0 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: b03b01d97bc8 Nov 06 04:19:14 lakshmi kernel: CR2: 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: USERPID 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= 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
[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
I'd love to have time to work on this kernel bug but I have fires all over the place with 17.10. I have a dual-boot setup between 16.04 and 17.10. The 17.10 took over nine minutes to boot originally. After finding out about Debian_bug_867368 I got it to boot in over three minutes. It still gets stuck booting and shutting down in other areas. -- 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: [#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 302907/05/2012 Nov 06 04:19:14 lakshmi kernel: task: 93db5adc8000 task.stack: b03b01d94000 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:b03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: RBX: RCX: 93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP: b03b01d97bf0 R08: R09: 93d9cd655468 Nov 06 04:19:14 lakshmi kernel: R10: 0228 R11: R12: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: R13: 93d9758deae0 R14: R15: 0059 Nov 06 04:19:14 lakshmi kernel: FS: () GS:93db77c0() knlGS: Nov 06 04:19:14 lakshmi kernel: CS: 0010 DS: ES: CR0: 80050033 Nov 06 04:19:14 lakshmi kernel: CR2: CR3: 0001d7e08000 CR4: 06f0 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: b03b01d97bc8 Nov 06 04:19:14 lakshmi kernel: CR2: 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: USERPID 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= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 nouveaufb
[Kernel-packages] [Bug 1730374] Re: NULL pointer dereference during writeback
It doesn't appear the patch mentioned ever landed in mainline. To see if this was fixed another way, would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.14 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14-rc8 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: kernel-da-key -- 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: [#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 302907/05/2012 Nov 06 04:19:14 lakshmi kernel: task: 93db5adc8000 task.stack: b03b01d94000 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:b03b01d97bc8 EFLAGS: 00010292 Nov 06 04:19:14 lakshmi kernel: RAX: RBX: RCX: 93d9758dfe28 Nov 06 04:19:14 lakshmi kernel: RDX: 0001 RSI: 05080020 RDI: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: RBP: b03b01d97bf0 R08: R09: 93d9cd655468 Nov 06 04:19:14 lakshmi kernel: R10: 0228 R11: R12: 93d9758dea58 Nov 06 04:19:14 lakshmi kernel: R13: 93d9758deae0 R14: R15: 0059 Nov 06 04:19:14 lakshmi kernel: FS: () GS:93db77c0() knlGS: Nov 06 04:19:14 lakshmi kernel: CS: 0010 DS: ES: CR0: 80050033 Nov 06 04:19:14 lakshmi kernel: CR2: CR3: 0001d7e08000 CR4: 06f0 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: b03b01d97bc8 Nov 06 04:19:14 lakshmi kernel: CR2: 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: USERPID ACCESS COMMAND /dev/snd/controlC1: ksta 3322 F pulseaudio /dev/snd/controlC0: ksta 3322 F pulseaudio CurrentDesktop:
