Attachment 1482176 Details for Bug 1627288 – Output from echo "l" > /proc/sysrq-trigger

Output from echo "l" > /proc/sysrq-trigger

sysreq-l.log (text/plain), 8.42 KB, created by Larkin Lowrey on 2018-09-10 15:07:34 UTC

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Creator: Larkin Lowrey

Created: 2018-09-10 15:07:34 UTC

Size: 8.42 KB

patch

obsolete

>[85828.739907] sysrq: SysRq : Show backtrace of all active CPUs
>[85828.745854] NMI backtrace for cpu 20
>[85828.749716] CPU: 20 PID: 4504 Comm: bash Not tainted 4.17.19-200.fc28.x86_64 #1
>[85828.757355] Hardware name: Supermicro H8DG6/H8DGi/H8DG6/H8DGi, BIOS 3.0a       07/26/2013
>[85828.765892] Call Trace:
>[85828.768519]  dump_stack+0x5c/0x80
>[85828.772068]  nmi_cpu_backtrace.cold.5+0x13/0x57
>[85828.776866]  ? lapic_can_unplug_cpu.cold.25+0x34/0x34
>[85828.782166]  nmi_trigger_cpumask_backtrace+0xde/0xe0
>[85828.787371]  __handle_sysrq.cold.7+0x67/0x10e
>[85828.791998]  write_sysrq_trigger+0x30/0x40
>[85828.796346]  proc_reg_write+0x3c/0x60
>[85828.800192]  __vfs_write+0x36/0x170
>[85828.803922]  ? set_close_on_exec+0x2a/0x60
>[85828.808246]  vfs_write+0xa5/0x1a0
>[85828.811817]  ksys_write+0x4f/0xb0
>[85828.815333]  do_syscall_64+0x5b/0x160
>[85828.819230]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
>[85828.824562] RIP: 0033:0x7effdbe8aef4
>[85828.828320] RSP: 002b:00007ffd24442c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
>[85828.836255] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007effdbe8aef4
>[85828.843676] RDX: 0000000000000002 RSI: 000055875a51ee90 RDI: 0000000000000001
>[85828.851092] RBP: 000055875a51ee90 R08: 000000000000000a R09: 00007effdbedc580
>[85828.858521] R10: 000000000000000a R11: 0000000000000246 R12: 00007effdc15a760
>[85828.865987] R13: 0000000000000002 R14: 00007effdc155760 R15: 0000000000000002
>[85828.873476] Sending NMI from CPU 20 to CPUs 0-19,21-31:
>[85828.878916] NMI backtrace for cpu 11
>[85828.878942] CPU: 11 PID: 3578 Comm: CPU 7/KVM Not tainted 4.17.19-200.fc28.x86_64 #1
>[85828.878943] Hardware name: Supermicro H8DG6/H8DGi/H8DG6/H8DGi, BIOS 3.0a       07/26/2013
>[85828.878955] RIP: 0010:svm_vcpu_run+0x3a7/0x6e0 [kvm_amd]
>[85828.878956] RSP: 0018:ffffb5b1c7777d08 EFLAGS: 00000046
>[85828.878970] RAX: ffff98100fdcf000 RBX: 0000000000000000 RCX: 00000000c0000101
>[85828.878972] RDX: ffffffffaf10a9fa RSI: 0000000000000000 RDI: ffffb5b1c7777cce
>[85828.878976] RBP: ffff98100fe50000 R08: 0000000000000000 R09: 0000000000000000
>[85828.878980] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
>[85828.878984] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
>[85828.878991] FS:  00007ff477afa700(0000) GS:ffff981097cc0000(0000) knlGS:0000000000000000
>[85828.878993] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>[85828.878994] CR2: 00000000000e4007 CR3: 0000000994e1e000 CR4: 00000000000406e0
>[85828.878995] Call Trace:
>[85828.879041]  ? kvm_arch_vcpu_ioctl_run+0x415/0x1a10 [kvm]
>[85828.879065]  ? kvm_vcpu_ioctl+0x2b8/0x5e0 [kvm]
>[85828.879072]  ? do_vfs_ioctl+0xa4/0x610
>[85828.879075]  ? change_prot_numa+0x18/0x30
>[85828.879079]  ? task_numa_work+0x236/0x310
>[85828.879081]  ? ksys_ioctl+0x60/0x90
>[85828.879083]  ? __x64_sys_ioctl+0x16/0x20
>[85828.879086]  ? do_syscall_64+0x5b/0x160
>[85828.879091]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
>[85828.879093] Code: 00 00 48 8b 90 d8 05 00 00 48 89 95 60 02 00 00 48 8b 90 78 05 00 00 48 89 95 c0 02 00 00 83 78 70 61 0f 84 bf 01 00 00 0f 01 dc <48> 8b 85 c0 55 00 00 83 78 70 61 0f 84 9a 01 00 00 8b 95 0c 03 
>[85828.879122] NMI backtrace for cpu 10 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879131] NMI backtrace for cpu 14
>[85828.879136] CPU: 14 PID: 3576 Comm: CPU 5/KVM Not tainted 4.17.19-200.fc28.x86_64 #1
>[85828.879137] Hardware name: Supermicro H8DG6/H8DGi/H8DG6/H8DGi, BIOS 3.0a       07/26/2013
>[85828.879146] RIP: 0010:unlock_page+0x29/0x50
>[85828.879147] RSP: 0018:ffffb5b1c7e57990 EFLAGS: 00000202
>[85828.879149] RAX: 00d01de600048229 RBX: ffffe87815235e00 RCX: 0000000000000000
>[85828.879150] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffe87815230000
>[85828.879152] RBP: 00000000001a5d78 R08: ffff9809e96358b8 R09: ffff9809e96356d0
>[85828.879153] R10: ffff9809e96356f8 R11: 0000000000000000 R12: ffffb5b1c7e57a08
>[85828.879154] R13: ffff98100fd67c20 R14: 0000000000000000 R15: ffff981015368000
>[85828.879155] FS:  00007fd9127fc700(0000) GS:ffff981097d80000(0000) knlGS:0000000000000000
>[85828.879157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>[85828.879158] CR2: 00007fc357d60000 CR3: 0000000994e1e000 CR4: 00000000000406e0
>[85828.879159] Call Trace:
>[85828.879166]  do_swap_page+0x215/0x7b0
>[85828.879171]  __handle_mm_fault+0x96e/0x1340
>[85828.879175]  handle_mm_fault+0xda/0x200
>[85828.879177]  __get_user_pages+0x238/0x7b0
>[85828.879180]  ? gup_pgd_range+0x224/0xdc0
>[85828.879182]  get_user_pages_unlocked+0x13b/0x1c0
>[85828.879238]  __gfn_to_pfn_memslot+0xd0/0x3f0 [kvm]
>[85828.879267]  try_async_pf+0x67/0x200 [kvm]
>[85828.879272]  ? _cond_resched+0x15/0x30
>[85828.879296]  ? kvm_host_page_size+0x72/0x80 [kvm]
>[85828.879323]  tdp_page_fault+0x142/0x290 [kvm]
>[85828.879327]  ? load_fixmap_gdt+0x22/0x30
>[85828.879352]  kvm_check_async_pf_completion+0x98/0x110 [kvm]
>[85828.879379]  kvm_arch_vcpu_ioctl_run+0x5be/0x1a10 [kvm]
>[85828.879383]  ? wake_up_q+0x54/0x70
>[85828.879386]  ? _copy_to_user+0x26/0x30
>[85828.879410]  kvm_vcpu_ioctl+0x2b8/0x5e0 [kvm]
>[85828.879413]  ? wake_up_q+0x70/0x70
>[85828.879416]  do_vfs_ioctl+0xa4/0x610
>[85828.879419]  ksys_ioctl+0x60/0x90
>[85828.879421]  __x64_sys_ioctl+0x16/0x20
>[85828.879424]  do_syscall_64+0x5b/0x160
>[85828.879428]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
>[85828.879431] RIP: 0033:0x7fd928058c57
>[85828.879432] RSP: 002b:00007fd9127fb848 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
>[85828.879434] RAX: ffffffffffffffda RBX: 00007fd931f89001 RCX: 00007fd928058c57
>[85828.879435] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000001c
>[85828.879436] RBP: 0000000000000001 R08: 0000557791545730 R09: 00000000000000ff
>[85828.879437] R10: 000055779509fda0 R11: 0000000000000246 R12: 000055779152b760
>[85828.879438] R13: 0000000000000000 R14: 00007fd931f88000 R15: 0000557793d18350
>[85828.879439] Code: 00 00 0f 1f 44 00 00 48 8b 47 20 48 8d 50 ff a8 01 48 0f 45 fa 48 8b 57 20 48 8d 42 ff 83 e2 01 48 0f 44 c7 48 8b 00 a8 01 74 0e <f0> 80 27 fe 78 01 c3 31 f6 e9 b9 fe ff ff 48 c7 c6 c0 50 0d 94 
>[85828.879469] NMI backtrace for cpu 15 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879476] NMI backtrace for cpu 21 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879493] NMI backtrace for cpu 0 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879501] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879518] NMI backtrace for cpu 5 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879536] NMI backtrace for cpu 9 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879553] NMI backtrace for cpu 3 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879561] NMI backtrace for cpu 4 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879567] NMI backtrace for cpu 8 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879575] NMI backtrace for cpu 2 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879591] NMI backtrace for cpu 7 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879610] NMI backtrace for cpu 13 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879618] NMI backtrace for cpu 6 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879625] NMI backtrace for cpu 12 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879642] NMI backtrace for cpu 25 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879651] NMI backtrace for cpu 24 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879666] NMI backtrace for cpu 17 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879683] NMI backtrace for cpu 27 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879691] NMI backtrace for cpu 26 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879698] NMI backtrace for cpu 16 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879712] NMI backtrace for cpu 18 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879720] NMI backtrace for cpu 19 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879737] NMI backtrace for cpu 29 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879745] NMI backtrace for cpu 28 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879760] NMI backtrace for cpu 22 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879778] NMI backtrace for cpu 30 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879787] NMI backtrace for cpu 31 skipped: idling at acpi_idle_do_entry+0x15/0x30
>[85828.879796] NMI backtrace for cpu 23 skipped: idling at acpi_idle_do_entry+0x15/0x30

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Attachments on bug 1627288: 1482176 | 1482177 | 1484410 | 1514407 | 1514408