Turns out that it is the cpu hotplug kernel selftest that crashes the kernel. Simply run: $ bash tools/testing/selftests/cpu-hotplug/on-off-test.sh from the Trusty 3.13 tree and the machine will fall over a couple of minutes later.
-- 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/1795675 Title: kernel BUG at /build/linux-PygFzL/linux-3.13.0/kernel/timer.c:930! Status in linux package in Ubuntu: Triaged Status in linux source package in Trusty: Triaged Bug description: Running a set of autotests on Trusty with kernel 3.13.0-160-generic results in the following reproducible crash: [10870.247844] kernel BUG at /build/linux-PygFzL/linux-3.13.0/kernel/timer.c:930! [10870.255080] invalid opcode: 0000 [#1] SMP [10870.259339] Modules linked in: squashfs aufs quota_v2 quota_tree ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp bridge stp llc ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables dm_crypt snd_hda_codec_realtek x86_pkg_temp_thermal coretemp kvm_intel kvm dell_wmi sparse_keymap snd_hda_intel crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec aesni_intel dcdbas snd_hwdep aes_x86_64 snd_pcm snd_page_alloc lrw snd_timer gf128mul glue_helper dm_multipath e1000e(OX) snd ablk_helper cryptd scsi_dh ptp serio_raw pps_core joydev shpchp soundcore acpi_pad mac_hid lp parport zfs(POX) zunicode(POX) zcommon(POX) znvpair(POX) spl(OX) zavl(POX) nbd hid_generic usbhid hid ahci psmouse libahci wmi video [last unloaded: notifier_error_inject] [10870.341666] CPU: 3 PID: 0 Comm: swapper/3 Tainted: P W OX 3.13.0-160-generic #210-Ubuntu [10870.350483] Hardware name: Dell Inc. PowerEdge T30/07T4MC, BIOS 1.0.10 09/28/2017 [10870.358004] task: ffff880261d38000 ti: ffff880261d2e000 task.ti: ffff880261d2e000 [10870.365527] RIP: 0010:[<ffffffff8107cae0>] [<ffffffff8107cae0>] add_timer_on+0x100/0x110 [10870.373808] RSP: 0018:ffff88026dd83e20 EFLAGS: 00010286 [10870.379157] RAX: 0000000000000000 RBX: ffff88026dd8f5e0 RCX: 0000000100297ce1 [10870.386321] RDX: ffff88026dd80000 RSI: 0000000000000003 RDI: ffff88026dd8f5e0 [10870.393483] RBP: ffff88026dd83e50 R08: 00000001002857e9 R09: ffff88026dd83da0 [10870.400648] R10: ffff88026dd83da4 R11: ffff88026dd83b2e R12: ffff880261e04000 [10870.407813] R13: 0000000000000100 R14: 0000000000000003 R15: ffff88026dd8f5e0 [10870.414977] FS: 0000000000000000(0000) GS:ffff88026dd80000(0000) knlGS:0000000000000000 [10870.423103] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10870.428886] CR2: 00007ffef89bc3c8 CR3: 0000000001c0e000 CR4: 0000000000360770 [10870.437837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [10870.445000] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [10870.452164] Stack: [10870.454229] 0000000000000c0a ffff88026dd8f5e0 00000000000249f0 0000000000000100 [10870.461928] ffffffff8103ac10 0000000000000001 ffff88026dd83e70 ffffffff8103aca4 [10870.469630] ffff880261e04000 ffff88026dc8f5e0 ffff88026dd83ea8 ffffffff8107aab8 [10870.477330] Call Trace: [10870.479828] <IRQ> [10870.481796] [<ffffffff8103ac10>] ? mce_cpu_restart+0x40/0x40 [10870.487899] [<ffffffff8103aca4>] mce_timer_fn+0x94/0x130 [10870.493335] [<ffffffff8107aab8>] call_timer_fn+0x38/0x150 [10870.498856] [<ffffffff8103ac10>] ? mce_cpu_restart+0x40/0x40 [10870.504640] [<ffffffff8107c4ef>] run_timer_softirq+0x21f/0x310 [10870.510602] [<ffffffff81073491>] __do_softirq+0x101/0x310 [10870.516130] [<ffffffff81073a35>] irq_exit+0x105/0x110 [10870.521315] [<ffffffff81751513>] smp_apic_timer_interrupt+0x53/0x70 [10870.527709] [<ffffffff8174e151>] apic_timer_interrupt+0x191/0x1a0 [10870.533927] <EOI> [10870.535894] [<ffffffff810a4c65>] ? sched_clock_cpu+0xb5/0x100 [10870.542083] [<ffffffff815e8de7>] ? cpuidle_enter_state+0x57/0xd0 [10870.548213] [<ffffffff815e8ddd>] ? cpuidle_enter_state+0x4d/0xd0 [10870.554343] [<ffffffff815e8f44>] cpuidle_idle_call+0xe4/0x240 [10870.560212] [<ffffffff8101eede>] arch_cpu_idle+0xe/0x40 [10870.565563] [<ffffffff810c6b01>] cpu_startup_entry+0xc1/0x2c0 [10870.571433] [<ffffffff8104472e>] start_secondary+0x24e/0x300 [10870.577215] Code: 74 24 48 8b 03 66 0f 1f 44 00 00 48 8b 7b 08 48 83 c3 10 4c 89 ea 4c 89 fe e8 2d 6f 6d 00 48 8b 03 48 85 c0 75 e5 e9 78 ff ff ff <0f> 0b 48 8b 75 08 e8 05 fe ff ff e9 30 ff ff ff 0f 1f 44 00 00 [10870.600416] RIP [<ffffffff8107cae0>] add_timer_on+0x100/0x110 [10870.606350] RSP <ffff88026dd83e20> [10870.609887] ---[ end trace 4a4c8eb5651e9968 ]--- [10870.619578] Kernel panic - not syncing: Fatal exception in interrupt [10870.626062] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795675/+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
