That one completed its first run, but then crashed when bringing CPU 14 back online, with the following dmesg output:
[ 163.176945] ------------[ cut here ]------------ [ 163.176949] kernel BUG at /home/jsalisbury/bugs/lp1733662/ubuntu-artful/mm/slub.c:3878! [ 163.178043] invalid opcode: 0000 [#1] SMP [ 163.178995] Modules linked in: nls_iso8859_1 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass intel_cstate joydev input_leds shpchp ipmi_ssif intel_rapl_perf acpi_power_meter lpc_ich ipmi_si ipmi_devintf ipmi_msghandler acpi_pad mac_hid mei_me mei ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ses enclosure scsi_transport_sas mgag200 ttm drm_kms_helper crct10dif_pclmul crc32_pclmul ghash_clmulni_intel syscopyarea pcbc sysfillrect fnic aesni_intel hid_generic sysimgblt igb fb_sys_fops aes_x86_64 dca usbhid crypto_simd i2c_algo_bit glue_helper libfcoe hid ahci ptp libfc mxm_wmi cryptd libahci [ 163.186785] drm pps_core enic scsi_transport_fc megaraid_sas wmi [ 163.188025] CPU: 14 PID: 93 Comm: cpuhp/14 Not tainted 4.13.0-13-generic #14~lp1733662Commite6108d5475696 [ 163.189294] Hardware name: Cisco Systems Inc UCSC-C240-M4L/UCSC-C240-M4L, BIOS C240M4.2.0.10c.0.032320160820 03/23/2016 [ 163.190606] task: ffff8dbaf809c5c0 task.stack: ffffae2acc8a8000 [ 163.191926] RIP: 0010:kfree+0x11c/0x160 [ 163.193255] RSP: 0000:ffffae2acc8abb80 EFLAGS: 00010246 [ 163.194600] RAX: fffff9cb3bff0020 RBX: ffff8dba00000000 RCX: ffffae2acc8abb60 [ 163.195954] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000728480000000 [ 163.197311] RBP: ffffae2acc8abb98 R08: ffffae2acc8abaec R09: 0000000000000002 [ 163.198703] R10: fffff9cb3c000000 R11: 0000000000000000 R12: ffff8d9aff94beb0 [ 163.200096] R13: ffffffffa6f2034b R14: ffff8dbaf27e4318 R15: ffff8dbaf27e4200 [ 163.201497] FS: 0000000000000000(0000) GS:ffff8dbaff380000(0000) knlGS:0000000000000000 [ 163.202919] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 163.204351] CR2: 0000000000000000 CR3: 000000101aa09000 CR4: 00000000001406e0 [ 163.205802] Call Trace: [ 163.207253] acpi_ns_get_node_unlocked+0xac/0xd8 [ 163.208704] ? kernfs_add_one+0xe4/0x130 [ 163.210183] ? down_timeout+0x37/0x60 [ 163.211644] ? acpi_os_wait_semaphore+0x4c/0x70 [ 163.213098] acpi_ns_get_node+0x41/0x58 [ 163.214550] ? acpi_ns_get_node+0x41/0x58 [ 163.216016] acpi_get_handle+0x95/0xbe [ 163.217486] acpi_has_method+0x25/0x40 [ 163.218932] acpi_processor_get_performance_info+0x57/0x580 [ 163.220391] ? wrmsrl_on_cpu+0x57/0x70 [ 163.221870] acpi_processor_register_performance+0x5e/0xd0 [ 163.223354] __intel_pstate_cpu_init.part.16+0xed/0x2e0 [ 163.224835] ? intel_pstate_init_cpu+0xc9/0x2d0 [ 163.226323] intel_pstate_cpu_init+0x24/0x40 [ 163.227819] cpufreq_online+0xd8/0x750 [ 163.229301] ? cpufreq_online+0x750/0x750 [ 163.230781] cpuhp_cpufreq_online+0xe/0x20 [ 163.232262] cpuhp_invoke_callback+0x84/0x3b0 [ 163.233758] cpuhp_up_callbacks+0x36/0xc0 [ 163.235254] cpuhp_thread_fun+0xd4/0xe0 [ 163.236731] smpboot_thread_fn+0xec/0x160 [ 163.238210] kthread+0x125/0x140 [ 163.239693] ? sort_range+0x30/0x30 [ 163.241165] ? kthread_create_on_node+0x70/0x70 [ 163.242629] ret_from_fork+0x25/0x30 [ 163.244061] Code: 08 49 83 c4 18 48 89 da 4c 89 ee ff d0 49 8b 04 24 48 85 c0 75 e6 e9 0e ff ff ff 49 8b 02 f6 c4 80 75 0a 49 8b 42 20 a8 01 75 02 <0f> 0b 49 8b 02 31 f6 f6 c4 80 74 04 41 8b 72 6c 4c 89 d7 e8 2c [ 163.247030] RIP: kfree+0x11c/0x160 RSP: ffffae2acc8abb80 [ 163.248463] ---[ end trace e22fa4721cb983b5 ]--- [ 168.454846] ------------[ cut here ]------------ [ 168.456219] kernel BUG at /home/jsalisbury/bugs/lp1733662/ubuntu-artful/mm/slub.c:3878! [ 168.457561] invalid opcode: 0000 [#2] SMP [ 168.458849] Modules linked in: nls_iso8859_1 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass intel_cstate joydev input_leds shpchp ipmi_ssif intel_rapl_perf acpi_power_meter lpc_ich ipmi_si ipmi_devintf ipmi_msghandler acpi_pad mac_hid mei_me mei ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ses enclosure scsi_transport_sas mgag200 ttm drm_kms_helper crct10dif_pclmul crc32_pclmul ghash_clmulni_intel syscopyarea pcbc sysfillrect fnic aesni_intel hid_generic sysimgblt igb fb_sys_fops aes_x86_64 dca usbhid crypto_simd i2c_algo_bit glue_helper libfcoe hid ahci ptp libfc mxm_wmi cryptd libahci [ 168.468659] drm pps_core enic scsi_transport_fc megaraid_sas wmi [ 168.470126] CPU: 0 PID: 2683 Comm: irqbalance Tainted: G D 4.13.0-13-generic #14~lp1733662Commite6108d5475696 [ 168.471648] Hardware name: Cisco Systems Inc UCSC-C240-M4L/UCSC-C240-M4L, BIOS C240M4.2.0.10c.0.032320160820 03/23/2016 [ 168.473183] task: ffff8dbae2bf9740 task.stack: ffffae2acf51c000 [ 168.474734] RIP: 0010:kfree+0x11c/0x160 [ 168.476246] RSP: 0018:ffffae2acf51fa08 EFLAGS: 00010246 [ 168.477765] RAX: fffff9cb3bff0020 RBX: ffff8dba00000000 RCX: 0000000000000000 [ 168.479292] RDX: 0000000000000000 RSI: ffff8dbae313ed10 RDI: 0000728480000000 [ 168.480797] RBP: ffffae2acf51fa20 R08: ffff8dbae2a5bac8 R09: 0000000180220021 [ 168.482306] R10: fffff9cb3c000000 R11: 0000000000000001 R12: ffff8dbaf2f60960 [ 168.483831] R13: ffffffffa6bdd4e0 R14: ffff8dbae33fbcd8 R15: ffff8dbae33fae00 [ 168.485365] FS: 00007f342d25a740(0000) GS:ffff8d9affc00000(0000) knlGS:0000000000000000 [ 168.486926] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 168.488478] CR2: 0000560651c9f3a8 CR3: 0000003ff4879000 CR4: 00000000001406f0 [ 168.490066] Call Trace: [ 168.491641] kfree_const+0x20/0x30 [ 168.493227] kernfs_put+0x71/0x180 [ 168.494793] kernfs_dop_release+0x12/0x20 [ 168.496367] __dentry_kill+0xe5/0x150 [ 168.497925] shrink_dentry_list+0x11f/0x2e0 [ 168.499478] d_invalidate+0x67/0x110 [ 168.501018] lookup_fast+0x2b9/0x310 [ 168.502552] ? dput.part.23+0x2d/0x1e0 [ 168.504096] walk_component+0x49/0x340 [ 168.505624] ? kernfs_iop_permission+0x4f/0x60 [ 168.507170] link_path_walk+0x1bc/0x590 [ 168.508703] ? path_init+0x177/0x2f0 [ 168.510248] path_lookupat+0x56/0x1f0 [ 168.511794] filename_lookup+0xb6/0x190 [ 168.513341] ? sprintf+0x51/0x70 [ 168.514885] ? __check_object_size+0xaf/0x1b0 [ 168.516429] ? strncpy_from_user+0x4d/0x170 [ 168.517968] user_path_at_empty+0x36/0x40 [ 168.519514] ? user_path_at_empty+0x36/0x40 [ 168.521020] vfs_statx+0x76/0xe0 [ 168.522481] SYSC_newstat+0x3d/0x70 [ 168.523922] ? ____fput+0xe/0x10 [ 168.525346] ? task_work_run+0x7b/0x90 [ 168.526777] ? exit_to_usermode_loop+0x9b/0xd0 [ 168.528186] SyS_newstat+0xe/0x10 [ 168.529565] entry_SYSCALL_64_fastpath+0x1e/0xa9 [ 168.530924] RIP: 0033:0x7f342c34abb5 [ 168.532229] RSP: 002b:00007ffcd3f64668 EFLAGS: 00000246 ORIG_RAX: 0000000000000004 [ 168.533535] RAX: ffffffffffffffda RBX: 0000000000b95fa0 RCX: 00007f342c34abb5 [ 168.534805] RDX: 00007ffcd3f646c0 RSI: 00007ffcd3f646c0 RDI: 00007ffcd3f65f50 [ 168.536043] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000038 [ 168.537240] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 168.538390] R13: 00007ffcd3f64f6b R14: 0000000000b95fa0 R15: 0000000000b96250 [ 168.539524] Code: 08 49 83 c4 18 48 89 da 4c 89 ee ff d0 49 8b 04 24 48 85 c0 75 e6 e9 0e ff ff ff 49 8b 02 f6 c4 80 75 0a 49 8b 42 20 a8 01 75 02 <0f> 0b 49 8b 02 31 f6 f6 c4 80 74 04 41 8b 72 6c 4c 89 d7 e8 2c [ 168.541855] RIP: kfree+0x11c/0x160 RSP: ffffae2acf51fa08 [ 168.543000] ---[ end trace e22fa4721cb983b6 ]--- The system is semi-responsive; bash continues to run, but most external commands seem to hang. Thus, I've rebooted via the BMC. -- 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/1733662 Title: System hang with Linux kernel 4.13, not with 4.10 Status in linux package in Ubuntu: In Progress Status in linux-hwe package in Ubuntu: New Status in linux source package in Artful: In Progress Status in linux-hwe source package in Artful: New Status in linux source package in Bionic: In Progress Status in linux-hwe source package in Bionic: New Bug description: In doing Ubuntu 17.10 regression testing, we've encountered one computer (boldore, a Cisco UCS C240 M4 [VIC]), that hangs about one in four times when running our cpu_offlining test. This test attempts to take all the CPU cores offline except one, then brings them back online again. This test ran successfully on boldore with previous releases, but with 17.10, the system sometimes (about one in four runs) hangs. Reverting to Ubuntu 16.04.3, I found no problems; but when I upgraded the 16.04.3 installation to linux- image-4.13.0-16-generic, the problem appeared again, so I'm confident this is a problem with the kernel. I'm attaching two files, dmesg- output-4.10.txt and dmesg-output-4.13.txt, which show the dmesg output that appears when running the cpu_offlining test with 4.10.0-38 and 4.13.0-16 kernels, respectively; the system hung on the 4.13 run. (I was running "dmesg -w" in a second SSH login; the files are cut-and- pasted from that.) I initiated this bug report from an Ubuntu 16.04.3 installation running a 4.10 kernel; but as I said, this applies to the 4.13 kernel. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.10.0-38-generic 4.10.0-38.42~16.04.1 ProcVersionSignature: User Name 4.10.0-38.42~16.04.1-generic 4.10.17 Uname: Linux 4.10.0-38-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 Date: Tue Nov 21 17:36:06 2017 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux-hwe UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1733662/+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
