This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1756197 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: xenial -- 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/1756197 Title: Kernel panic BUG_ON in 4.4.0-92-generic fs/ext4/inode.c:1894! Status in linux package in Ubuntu: Incomplete Bug description: User reports a kernel panic under load: [2503476.606215] kernel BUG at /build/linux-hVVhWi/linux-4.4.0/fs/ext4/inode.c:1894! [2503476.606236] invalid opcode: 0000 [#1] SMP [2503476.606249] Modules linked in: veth ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc overlay xt_multiport iptable_filter ip_tables x_tables nv_peer_mem(OE) cachefiles fscache msr rdma_ucm(OE) ib_ucm(OE) rdma_cm(OE) iw_cm(OE) configfs ib_ipoib(OE) ib_cm(OE) ib_uverbs(OE) ib_umad(OE) mlx5_ib(OE) mlx4_ib(OE) ib_core(OE) mlx4_en(OE) mlx4_core(OE) ipmi_ssif mxm_wmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev input_leds sb_edac edac_core nvidia_uvm(POE) lpc_ich mei_me mei shpchp [2503476.606483] 8250_fintek ipmi_si acpi_power_meter wmi mac_hid ipmi_devintf ipmi_msghandler knem(OE) sunrpc autofs4 nvidia_drm(POE) nvidia_modeset(POE) ses enclosure ast ixgbe i2c_algo_bit dca ttm nvidia(POE) drm_kms_helper syscopyarea hid_generic vxlan sysfillrect sysimgblt ip6_udp_tunnel mlx5_core(OE) usbhid udp_tunnel mlx_compat(OE) megaraid_sas fb_sys_fops hid ahci ptp libahci drm pps_core mdio fjes [2503476.606608] CPU: 23 PID: 27629 Comm: kworker/u162:3 Tainted: P OE 4.4.0-92-generic #115-Ubuntu [2503476.606632] Hardware name: NVIDIA DGX-1 with V100/DGX-1 with V100, BIOS S2W_3A04 08/29/2017 [2503476.606659] Workqueue: writeback wb_workfn (flush-8:0) [2503476.606675] task: ffff884b48124600 ti: ffff887a04a58000 task.ti: ffff887a04a58000 [2503476.606695] RIP: 0010:[<ffffffff8129ef7c>] [<ffffffff8129ef7c>] ext4_writepage+0x2ec/0x540 [2503476.606721] RSP: 0018:ffff887a04a5b858 EFLAGS: 00010246 [2503476.606735] RAX: 0501ef000000016d RBX: 0000000000001000 RCX: 0000000000000038 [2503476.606754] RDX: ffff8827720d3490 RSI: ffff887a04a5bbd8 RDI: ffffea010f9c1c00 [2503476.606772] RBP: ffff887a04a5b8c0 R08: 000000000001a8c0 R09: 0000000000000002 [2503476.606790] R10: ffff88807fff8000 R11: 0000000000000033 R12: ffff8827720d3328 [2503476.606808] R13: ffff887a04a5bbd8 R14: ffffea010f9c1c00 R15: ffffea010f9c1c00 [2503476.606828] FS: 0000000000000000(0000) GS:ffff887f7ecc0000(0000) knlGS:0000000000000000 [2503476.606848] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [2503476.606864] CR2: 00007f4fb11430b0 CR3: 0000000002e0a000 CR4: 00000000003406e0 [2503476.606882] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [2503476.606916] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [2503476.606935] Stack: [2503476.606943] ffffffff811ceba3 000000008118f139 ffff887a04a5b864 ffffffff811cd450 [2503476.606969] 0000000000000000 0000000000000000 0000000000000246 63a00f9eaf8e9dde [2503476.606991] ffff8827720d3490 ffff887a04a5bbd8 ffff8827720d3490 ffffea010f9c1c00 [2503476.607013] Call Trace: [2503476.607025] [<ffffffff811ceba3>] ? page_mkclean+0x73/0xa0 [2503476.607043] [<ffffffff811cd450>] ? page_referenced_one+0x1a0/0x1a0 [2503476.607062] [<ffffffff8129f1e2>] __writepage+0x12/0x30 [2503476.607080] [<ffffffff8119b28e>] write_cache_pages+0x1ee/0x510 [2503476.607097] [<ffffffff8129f1d0>] ? ext4_writepage+0x540/0x540 [2503476.607114] [<ffffffff8129fdc5>] ext4_writepages+0x195/0xd30 [2503476.607132] [<ffffffff8119b60b>] ? generic_writepages+0x5b/0x80 [2503476.607149] [<ffffffff8119da9e>] do_writepages+0x1e/0x30 [2503476.607165] [<ffffffff8123e585>] __writeback_single_inode+0x45/0x340 [2503476.607201] [<ffffffff8123ed92>] writeback_sb_inodes+0x262/0x600 [2503476.607218] [<ffffffff8123f1bc>] __writeback_inodes_wb+0x8c/0xc0 [2503476.607236] [<ffffffff8123f513>] wb_writeback+0x253/0x310 [2503476.607251] [<ffffffff8123fced>] wb_workfn+0x24d/0x400 [2503476.607268] [<ffffffff8109a625>] process_one_work+0x165/0x480 [2503476.607285] [<ffffffff8109a98b>] worker_thread+0x4b/0x4c0 [2503476.607300] [<ffffffff8109a940>] ? process_one_work+0x480/0x480 [2503476.607318] [<ffffffff810a0cc5>] kthread+0xe5/0x100 [2503476.607332] [<ffffffff810a0be0>] ? kthread_create_on_node+0x1e0/0x1e0 [2503476.607352] [<ffffffff8184238f>] ret_from_fork+0x3f/0x70 [2503476.607368] [<ffffffff810a0be0>] ? kthread_create_on_node+0x1e0/0x1e0 [2503476.607385] Code: 74 2b 49 8b 94 24 68 ff ff ff 80 e6 40 74 07 a9 00 00 00 08 74 17 25 00 08 00 00 3d 00 08 00 00 0f 84 aa fd ff ff e8 15 ed 08 00 <0f> 0b 49 8b 84 24 68 ff ff ff f6 c4 08 0f 85 92 fd ff ff e9 79 [2503476.607525] RIP [<ffffffff8129ef7c>] ext4_writepage+0x2ec/0x540 [2503476.607543] RSP <ffff887a04a5b858> [2503476.613569] ---[ end trace 03d35738081084c6 ]--- [2503476.690872] BUG: unable to handle kernel paging request at ffffffffffffffd8 [2503476.690921] IP: [<ffffffff810a1370>] kthread_data+0x10/0x20 [2503476.690943] PGD 2e0d067 PUD 2e0f067 PMD 0 [2503476.690962] Oops: 0000 [#2] SMP [2503476.690975] Modules linked in: veth ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc overlay xt_multiport iptable_filter ip_tables x_tables nv_peer_mem(OE) cachefiles fscache msr rdma_ucm(OE) ib_ucm(OE) rdma_cm(OE) iw_cm(OE) configfs ib_ipoib(OE) ib_cm(OE) ib_uverbs(OE) ib_umad(OE) mlx5_ib(OE) mlx4_ib(OE) ib_core(OE) mlx4_en(OE) mlx4_core(OE) ipmi_ssif mxm_wmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev input_leds sb_edac edac_core nvidia_uvm(POE) lpc_ich mei_me mei shpchp [2503476.691252] 8250_fintek ipmi_si acpi_power_meter wmi mac_hid ipmi_devintf ipmi_msghandler knem(OE) sunrpc autofs4 nvidia_drm(POE) nvidia_modeset(POE) ses enclosure ast ixgbe i2c_algo_bit dca ttm nvidia(POE) drm_kms_helper syscopyarea hid_generic vxlan sysfillrect sysimgblt ip6_udp_tunnel mlx5_core(OE) usbhid udp_tunnel mlx_compat(OE) megaraid_sas fb_sys_fops hid ahci ptp libahci drm pps_core mdio fjes [2503476.692726] CPU: 23 PID: 27629 Comm: kworker/u162:3 Tainted: P D OE 4.4.0-92-generic #115-Ubuntu [2503476.693996] Hardware name: NVIDIA DGX-1 with V100/DGX-1 with V100, BIOS S2W_3A04 08/29/2017 [2503476.695119] task: ffff884b48124600 ti: ffff887a04a58000 task.ti: ffff887a04a58000 [2503476.696215] RIP: 0010:[<ffffffff810a1370>] [<ffffffff810a1370>] kthread_data+0x10/0x20 [2503476.697313] RSP: 0018:ffff887a04a5b528 EFLAGS: 00010002 [2503476.698404] RAX: 0000000000000000 RBX: 0000000000000017 RCX: ffffffff82109e80 [2503476.699529] RDX: 0000000000000017 RSI: 0000000000000017 RDI: ffff884b48124600 [2503476.700569] RBP: ffff887a04a5b528 R08: 00000000ffffffff R09: 0000000000000000 [2503476.701511] R10: ffff884b48124660 R11: 0000000000006c00 R12: 0000000000000000 [2503476.702419] R13: 0000000000016dc0 R14: ffff884b48124600 R15: ffff887f7ecd6dc0 [2503476.703346] FS: 0000000000000000(0000) GS:ffff887f7ecc0000(0000) knlGS:0000000000000000 [2503476.704206] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [2503476.705054] CR2: 0000000000000028 CR3: 0000000002e0a000 CR4: 00000000003406e0 [2503476.705898] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [2503476.706732] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [2503476.707606] Stack: [2503476.708423] ffff887a04a5b540 ffffffff8109b9c1 ffff887f7ecd6dc0 ffff887a04a5b590 [2503476.709253] ffffffff8183dab0 ffff887f60547eb0 ffff887a00000017 ffff884b48124600 [2503476.710079] ffff887a04a5c000 ffff884b48124cd0 ffff887a04a5b140 0000000000000000 [2503476.710922] Call Trace: [2503476.711769] [<ffffffff8109b9c1>] wq_worker_sleeping+0x11/0x90 [2503476.712594] [<ffffffff8183dab0>] __schedule+0x650/0xa30 [2503476.713414] [<ffffffff8183dec5>] schedule+0x35/0x80 [2503476.714228] [<ffffffff81084465>] do_exit+0x775/0xb00 [2503476.715061] [<ffffffff81031c41>] oops_end+0xa1/0xd0 [2503476.715883] [<ffffffff810320fb>] die+0x4b/0x70 [2503476.716681] [<ffffffff8102f121>] do_trap+0xb1/0x140 [2503476.717481] [<ffffffff8102f4a9>] do_error_trap+0x89/0x110 [2503476.718280] [<ffffffff8129ef7c>] ? ext4_writepage+0x2ec/0x540 [2503476.719099] [<ffffffff812eda1d>] ? do_get_write_access+0x38d/0x490 [2503476.719909] [<ffffffff810c3d94>] ? __wake_up+0x44/0x50 [2503476.720690] [<ffffffff8102fa10>] do_invalid_op+0x20/0x30 [2503476.721468] [<ffffffff81843b0e>] invalid_op+0x1e/0x30 [2503476.722241] [<ffffffff8129ef7c>] ? ext4_writepage+0x2ec/0x540 [2503476.723044] [<ffffffff811ceba3>] ? page_mkclean+0x73/0xa0 [2503476.723847] [<ffffffff811cd450>] ? page_referenced_one+0x1a0/0x1a0 [2503476.724621] [<ffffffff8129f1e2>] __writepage+0x12/0x30 [2503476.725396] [<ffffffff8119b28e>] write_cache_pages+0x1ee/0x510 [2503476.726172] [<ffffffff8129f1d0>] ? ext4_writepage+0x540/0x540 [2503476.726967] [<ffffffff8129fdc5>] ext4_writepages+0x195/0xd30 [2503476.727770] [<ffffffff8119b60b>] ? generic_writepages+0x5b/0x80 [2503476.728545] [<ffffffff8119da9e>] do_writepages+0x1e/0x30 [2503476.729318] [<ffffffff8123e585>] __writeback_single_inode+0x45/0x340 [2503476.730093] [<ffffffff8123ed92>] writeback_sb_inodes+0x262/0x600 [2503476.730870] [<ffffffff8123f1bc>] __writeback_inodes_wb+0x8c/0xc0 [2503476.731696] [<ffffffff8123f513>] wb_writeback+0x253/0x310 [2503476.732472] [<ffffffff8123fced>] wb_workfn+0x24d/0x400 [2503476.733248] [<ffffffff8109a625>] process_one_work+0x165/0x480 [2503476.734026] [<ffffffff8109a98b>] worker_thread+0x4b/0x4c0 [2503476.734801] [<ffffffff8109a940>] ? process_one_work+0x480/0x480 [2503476.735691] [<ffffffff810a0cc5>] kthread+0xe5/0x100 [2503476.736464] [<ffffffff810a0be0>] ? kthread_create_on_node+0x1e0/0x1e0 [2503476.737240] [<ffffffff8184238f>] ret_from_fork+0x3f/0x70 [2503476.737991] [<ffffffff810a0be0>] ? kthread_create_on_node+0x1e0/0x1e0 [2503476.738724] Code: ff ff ff be 49 02 00 00 48 c7 c7 98 b9 cb 81 e8 e7 00 fe ff e9 a6 fe ff ff 66 90 0f 1f 44 00 00 48 8b 87 18 05 00 00 55 48 89 e5 <48> 8b 40 d8 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 [2503476.739609] RIP [<ffffffff810a1370>] kthread_data+0x10/0x20 [2503476.740384] RSP <ffff887a04a5b528> [2503476.741149] CR2: ffffffffffffffd8 [2503476.741909] ---[ end trace 03d35738081084c7 ]--- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1756197/+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