LTP case read_all_proc(read_all -d /proc -q -r 10) often, but not every time, fails with the following call traces, since 600335205b8d "ide: convert to blk-mq"(5.0-rc1) till now(5.0-rc3). qemu-system-x86_64 -drive file=rootfs.ext4,if=virtio,format=raw -object rng-random,filename=/dev/urandom,id=rng0 -device virtio-rng-pci,rng=rng0 -nographic -m 16192 -smp cpus=12 -cpu core2duo -enable-kvm -serial mon:stdio -serial null -kernel bzImage -append 'root=/dev/vda rw highres=off console=ttyS0 mem=16192M' tst_test.c:1085: INFO: Timeout per run is 0h 05m 00s [ 47.080156] Warning: /proc/ide/hd?/settings interface is obsolete, and will be removed soon! [ 47.085330] ------------[ cut here ]------------ [ 47.085810] kernel BUG at block/blk-mq.c:767! [ 47.086498] invalid opcode: 0000 [#1] PREEMPT SMP PTI [ 47.087022] CPU: 5 PID: 146 Comm: kworker/5:1H Not tainted 5.0.0-rc3 #1 [ 47.087858] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org 04/01/2014 [ 47.088992] Workqueue: kblockd blk_mq_run_work_fn [ 47.089469] RIP: 0010:blk_mq_add_to_requeue_list+0xc1/0xd0 [ 47.090035] Code: 48 8d 53 48 49 8b 8c 24 b8 04 00 00 48 89 51 08 48 89 4b 48 49 8d 8c 24 b8 04 00 00 48 89 4b 50 49 89 94 24 b8 04 00 008 [ 47.091930] RSP: 0018:ffff9e1ea4b43e40 EFLAGS: 00010002 [ 47.092458] RAX: ffff9e1ea13c0048 RBX: ffff9e1ea13c0000 RCX: 0000000000000006 [ 47.093181] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff9e1ea13c0000 [ 47.093906] RBP: ffff9e1ea4b43e68 R08: ffffeb5bcf630680 R09: 0000000000000000 [ 47.094626] R10: 0000000000000001 R11: 0000000000000012 R12: ffff9e1ea1033a40 [ 47.095347] R13: ffff9e1ea13a8d00 R14: ffff9e1ea13a9000 R15: 0000000000000046 [ 47.096071] FS: 0000000000000000(0000) GS:ffff9e1ea4b40000(0000) knlGS:0000000000000000 [ 47.096898] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.097477] CR2: 0000003fda41fda0 CR3: 00000003d8e6a000 CR4: 00000000000006e0 [ 47.098203] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.098929] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.099650] Call Trace: [ 47.099910] <IRQ> [ 47.100128] blk_mq_requeue_request+0x58/0x60 [ 47.100576] ide_requeue_and_plug+0x20/0x50 [ 47.101014] ide_intr+0x21a/0x230 [ 47.101362] ? idecd_open+0xc0/0xc0 [ 47.101735] __handle_irq_event_percpu+0x43/0x1e0 [ 47.102214] handle_irq_event_percpu+0x32/0x80 [ 47.102668] handle_irq_event+0x39/0x60 [ 47.103074] handle_edge_irq+0xe8/0x1c0 [ 47.103470] handle_irq+0x20/0x30 [ 47.103819] do_IRQ+0x46/0xe0 [ 47.104128] common_interrupt+0xf/0xf [ 47.104505] </IRQ> [ 47.104731] RIP: 0010:ide_output_data+0xbc/0x100 [ 47.105201] Code: 74 22 8d 41 ff 85 c9 74 24 49 8d 54 40 02 41 0f b7 00 66 41 89 01 49 83 c0 02 49 39 d0 75 ef 5b 41 5c 5d c3 4c 89 c6 445 [ 47.107092] RSP: 0018:ffffbd508059bb18 EFLAGS: 00010246 ORIG_RAX: ffffffffffffffdd [ 47.107862] RAX: ffff9e1ea13a8800 RBX: ffff9e1ea13a9000 RCX: 0000000000000000 [ 47.108581] RDX: 0000000000000170 RSI: ffff9e1ea13c012c RDI: 0000000000000000 [ 47.109293] RBP: ffffbd508059bb28 R08: ffff9e1ea13c0120 R09: 0000000000000170 [ 47.110016] R10: 000000000000000d R11: 000000000000000c R12: ffff9e1ea13a8800 [ 47.110731] R13: 000000000000000c R14: ffff9e1ea13c0000 R15: 0000000000007530 [ 47.111446] ide_transfer_pc+0x216/0x310 [ 47.111848] ? __const_udelay+0x3d/0x40 [ 47.112236] ? ide_execute_command+0x85/0xb0 [ 47.112668] ? ide_pc_intr+0x3f0/0x3f0 [ 47.113051] ? ide_check_atapi_device+0x110/0x110 [ 47.113524] ide_issue_pc+0x178/0x240 [ 47.113901] ide_cd_do_request+0x15c/0x350 [ 47.114314] ide_queue_rq+0x180/0x6b0 [ 47.114686] ? blk_mq_get_driver_tag+0xa1/0x110 [ 47.115153] blk_mq_dispatch_rq_list+0x90/0x550 [ 47.115606] ? __queue_delayed_work+0x63/0x90 [ 47.116054] ? deadline_fifo_request+0x41/0x90 [ 47.116506] blk_mq_do_dispatch_sched+0x80/0x100 [ 47.116976] blk_mq_sched_dispatch_requests+0xfc/0x170 [ 47.117491] __blk_mq_run_hw_queue+0x6f/0xd0 [ 47.117941] blk_mq_run_work_fn+0x1b/0x20 [ 47.118342] process_one_work+0x14c/0x450 [ 47.118747] worker_thread+0x4a/0x440 [ 47.119125] kthread+0x105/0x140 [ 47.119456] ? process_one_work+0x450/0x450 [ 47.119880] ? kthread_park+0x90/0x90 [ 47.120251] ret_from_fork+0x35/0x40 [ 47.120619] Modules linked in: [ 47.120952] ---[ end trace 4562f716e88fdefe ]--- [ 47.121423] RIP: 0010:blk_mq_add_to_requeue_list+0xc1/0xd0 [ 47.121981] Code: 48 8d 53 48 49 8b 8c 24 b8 04 00 00 48 89 51 08 48 89 4b 48 49 8d 8c 24 b8 04 00 00 48 89 4b 50 49 89 94 24 b8 04 00 008 [ 47.123851] RSP: 0018:ffff9e1ea4b43e40 EFLAGS: 00010002 [ 47.124393] RAX: ffff9e1ea13c0048 RBX: ffff9e1ea13c0000 RCX: 0000000000000006 [ 47.125108] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff9e1ea13c0000 [ 47.125819] RBP: ffff9e1ea4b43e68 R08: ffffeb5bcf630680 R09: 0000000000000000 [ 47.126539] R10: 0000000000000001 R11: 0000000000000012 R12: ffff9e1ea1033a40 [ 47.127262] R13: ffff9e1ea13a8d00 R14: ffff9e1ea13a9000 R15: 0000000000000046 [ 47.127988] FS: 0000000000000000(0000) GS:ffff9e1ea4b40000(0000) knlGS:0000000000000000 [ 47.128793] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.129385] CR2: 0000003fda41fda0 CR3: 00000003d8e6a000 CR4: 00000000000006e0 [ 47.130104] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.130823] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.131547] Kernel panic - not syncing: Fatal exception in interrupt [ 47.132609] Kernel Offset: 0x7c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 47.133679] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]--- [ 47.134432] ------------[ cut here ]------------ [ 47.134898] sched: Unexpected reschedule of offline CPU#9! [ 47.135459] WARNING: CPU: 5 PID: 146 at arch/x86/kernel/smp.c:128 native_smp_send_reschedule+0x3f/0x50 [ 47.136622] Modules linked in: [ 47.136932] CPU: 5 PID: 146 Comm: kworker/5:1H Tainted: G D 5.0.0-rc3 #1 [ 47.137901] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org 04/01/2014 [ 47.139031] Workqueue: kblockd blk_mq_run_work_fn [ 47.139508] RIP: 0010:native_smp_send_reschedule+0x3f/0x50 [ 47.140065] Code: c0 84 c0 74 17 48 8b 05 3f ab 03 01 be fd 00 00 00 48 8b 40 30 e8 f1 eb bb 00 5d c3 89 fe 48 c7 c7 b0 d1 bc 89 e8 01 4b0 [ 47.141926] RSP: 0018:ffff9e1ea4b43910 EFLAGS: 00010086 [ 47.142459] RAX: 0000000000000000 RBX: ffff9e1e9d518c00 RCX: 0000000000000006 [ 47.143169] RDX: 0000000000000007 RSI: 0000000000000086 RDI: ffff9e1ea4b55410 [ 47.143881] RBP: ffff9e1ea4b43910 R08: 0000000000020ef2 R09: 0000000000000005 [ 47.144595] R10: 0000000000000000 R11: ffff9e1ea4b43775 R12: ffff9e1e9d519294 [ 47.145312] R13: 0000000000000009 R14: 0000000000000000 R15: 0000000000000001 [ 47.146021] FS: 0000000000000000(0000) GS:ffff9e1ea4b40000(0000) knlGS:0000000000000000 [ 47.146830] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.147410] CR2: 0000003fda41fda0 CR3: 00000003d8e6a000 CR4: 00000000000006e0 [ 47.148119] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.148828] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.149543] Call Trace: [ 47.149794] <IRQ> [ 47.150004] try_to_wake_up+0x257/0x470 [ 47.150400] default_wake_function+0x12/0x20 [ 47.150831] autoremove_wake_function+0x12/0x40 [ 47.151296] __wake_up_common+0x8c/0x130 [ 47.151696] __wake_up_common_lock+0x80/0xc0 [ 47.152129] __wake_up+0x13/0x20 [ 47.152469] wake_up_klogd_work_func+0x40/0x70 [ 47.152924] irq_work_run_list+0x4e/0x80 [ 47.153324] irq_work_tick+0x40/0x50 [ 47.153687] update_process_times+0x42/0x60 [ 47.154108] tick_sched_handle.isra.6+0x34/0x40 [ 47.154564] tick_nohz_handler+0x5b/0x90 [ 47.154956] smp_apic_timer_interrupt+0x70/0x180 [ 47.155422] apic_timer_interrupt+0xf/0x20 [ 47.155836] RIP: 0010:panic+0x238/0x284 [ 47.156235] Code: 48 83 c3 64 eb b0 83 3d 11 e0 47 01 00 74 05 e8 62 3b 02 00 48 c7 c6 c0 56 0e 8a 48 c7 c7 48 35 bd 89 e8 12 e0 04 00 fb8 [ 47.158092] RSP: 0018:ffff9e1ea4b43c08 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 47.158856] RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000006 [ 47.159568] RDX: 0000000000000000 RSI: 0000000000000092 RDI: ffff9e1ea4b55410 [ 47.160283] RBP: ffff9e1ea4b43c80 R08: 0000000000020a2f R09: 0000000000000005 [ 47.160997] R10: 0000000000000000 R11: ffff9e1ea4b43a8d R12: 0000000000000000 [ 47.161713] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 47.162431] ? apic_timer_interrupt+0xa/0x20 [ 47.162861] ? panic+0x235/0x284 [ 47.163192] oops_end+0x8e/0xa0 [ 47.163520] die+0x42/0x50 [ 47.163795] do_trap+0xdd/0x110 [ 47.164119] do_error_trap+0x7b/0xa0 [ 47.164493] ? blk_mq_add_to_requeue_list+0xc1/0xd0 [ 47.164983] do_invalid_op+0x3b/0x50 [ 47.165345] ? blk_mq_add_to_requeue_list+0xc1/0xd0 [ 47.165835] invalid_op+0x14/0x20 [ 47.166173] RIP: 0010:blk_mq_add_to_requeue_list+0xc1/0xd0 [ 47.166727] Code: 48 8d 53 48 49 8b 8c 24 b8 04 00 00 48 89 51 08 48 89 4b 48 49 8d 8c 24 b8 04 00 00 48 89 4b 50 49 89 94 24 b8 [ 47.168581] RSP: 0018:ffff9e1ea4b43e40 EFLAGS: 00010002 [ 47.169109] RAX: ffff9e1ea13c0048 RBX: ffff9e1ea13c0000 RCX: 0000000000000006 [ 47.169823] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff9e1ea13c0000 [ 47.170542] RBP: ffff9e1ea4b43e68 R08: ffffeb5bcf630680 R09: 0000000000000000 [ 47.171249] R10: 0000000000000001 R11: 0000000000000012 R12: ffff9e1ea1033a40 [ 47.171960] R13: ffff9e1ea13a8d00 R14: ffff9e1ea13a9000 R15: 0000000000000046 [ 47.172677] blk_mq_requeue_request+0x58/0x60 [ 47.173119] ide_requeue_and_plug+0x20/0x50 [ 47.173548] ide_intr+0x21a/0x230 [ 47.173887] ? idecd_open+0xc0/0xc0 [ 47.174241] __handle_irq_event_percpu+0x43/0x1e0 [ 47.174720] handle_irq_event_percpu+0x32/0x80 [ 47.175163] handle_irq_event+0x39/0x60 [ 47.175554] handle_edge_irq+0xe8/0x1c0 [ 47.175943] handle_irq+0x20/0x30 [ 47.176280] do_IRQ+0x46/0xe0 [ 47.176586] common_interrupt+0xf/0xf [ 47.176956] </IRQ> [ 47.177173] RIP: 0010:ide_output_data+0xbc/0x100 [ 47.177649] Code: 74 22 8d 41 ff 85 c9 74 24 49 8d 54 40 02 41 0f b7 00 66 41 89 01 49 83 c0 02 49 39 d0 75 ef 5b 41 5c 5d c3 4c 89 c6 445 [ 47.179512] RSP: 0018:ffffbd508059bb18 EFLAGS: 00010246 ORIG_RAX: ffffffffffffffdd [ 47.180269] RAX: ffff9e1ea13a8800 RBX: ffff9e1ea13a9000 RCX: 0000000000000000 [ 47.180982] RDX: 0000000000000170 RSI: ffff9e1ea13c012c RDI: 0000000000000000 [ 47.181694] RBP: ffffbd508059bb28 R08: ffff9e1ea13c0120 R09: 0000000000000170 [ 47.182403] R10: 000000000000000d R11: 000000000000000c R12: ffff9e1ea13a8800 [ 47.183119] R13: 000000000000000c R14: ffff9e1ea13c0000 R15: 0000000000007530 [ 47.183838] ide_transfer_pc+0x216/0x310 [ 47.184231] ? __const_udelay+0x3d/0x40 [ 47.184625] ? ide_execute_command+0x85/0xb0 [ 47.185058] ? ide_pc_intr+0x3f0/0x3f0 [ 47.185440] ? ide_check_atapi_device+0x110/0x110 [ 47.185915] ide_issue_pc+0x178/0x240 [ 47.186284] ide_cd_do_request+0x15c/0x350 [ 47.186700] ide_queue_rq+0x180/0x6b0 [ 47.187070] ? blk_mq_get_driver_tag+0xa1/0x110 [ 47.187539] blk_mq_dispatch_rq_list+0x90/0x550 [ 47.187996] ? __queue_delayed_work+0x63/0x90 [ 47.188441] ? deadline_fifo_request+0x41/0x90 [ 47.188895] blk_mq_do_dispatch_sched+0x80/0x100 [ 47.189362] blk_mq_sched_dispatch_requests+0xfc/0x170 [ 47.189891] __blk_mq_run_hw_queue+0x6f/0xd0 [ 47.190320] blk_mq_run_work_fn+0x1b/0x20 [ 47.190727] process_one_work+0x14c/0x450 [ 47.191136] worker_thread+0x4a/0x440 [ 47.191509] kthread+0x105/0x140 [ 47.191845] ? process_one_work+0x450/0x450 [ 47.192273] ? kthread_park+0x90/0x90 [ 47.192649] ret_from_fork+0x35/0x40 [ 47.193009] ---[ end trace 4562f716e88fdeff ]--- [ 47.193474] ------------[ cut here ]------------ [ 47.193947] sched: Unexpected reschedule of offline CPU#6! [ 47.194494] WARNING: CPU: 5 PID: 146 at arch/x86/kernel/smp.c:128 native_smp_send_reschedule+0x3f/0x50 [ 47.195653] Modules linked in: [ 47.195966] CPU: 5 PID: 146 Comm: kworker/5:1H Tainted: G D W 5.0.0-rc3 #1 [ 47.196939] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org 04/01/2014 [ 47.198056] Workqueue: kblockd blk_mq_run_work_fn [ 47.198526] RIP: 0010:native_smp_send_reschedule+0x3f/0x50 [ 47.199075] Code: c0 84 c0 74 17 48 8b 05 3f ab 03 01 be fd 00 00 00 48 8b 40 30 e8 f1 eb bb 00 5d c3 89 fe 48 c7 c7 b0 d1 bc 89 e8 01 4b0 [ 47.200930] RSP: 0018:ffff9e1ea4b43868 EFLAGS: 00010082 [ 47.201456] RAX: 0000000000000000 RBX: ffff9e1ea08da400 RCX: 0000000000000006 [ 47.202173] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9e1ea4b55410 [ 47.202887] RBP: ffff9e1ea4b43868 R08: 000000000002f59b R09: 0000000000000005 [ 47.203596] R10: 0000000000000000 R11: ffff9e1ea4b436cd R12: ffff9e1ea08daa94 [ 47.204305] R13: 0000000000000006 R14: 0000000000000000 R15: 0000000000000001 [ 47.205036] FS: 0000000000000000(0000) GS:ffff9e1ea4b40000(0000) knlGS:0000000000000000 [ 47.205836] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.206409] CR2: 0000003fda41fda0 CR3: 00000003d8e6a000 CR4: 00000000000006e0 [ 47.207123] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.207832] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.208545] Call Trace: [ 47.208797] <IRQ> [ 47.209005] try_to_wake_up+0x257/0x470 [ 47.209392] default_wake_function+0x12/0x20 [ 47.209826] __wake_up_common+0x8c/0x130 [ 47.210220] __wake_up_locked+0x16/0x20 [ 47.210608] ep_poll_callback+0x1c1/0x310 [ 47.211012] __wake_up_common+0x8c/0x130 [ 47.211408] __wake_up_common_lock+0x80/0xc0 [ 47.211840] __wake_up+0x13/0x20 [ 47.212168] wake_up_klogd_work_func+0x40/0x70 [ 47.212622] irq_work_run_list+0x4e/0x80 [ 47.213022] irq_work_tick+0x40/0x50 [ 47.213382] update_process_times+0x42/0x60 [ 47.213806] tick_sched_handle.isra.6+0x34/0x40 [ 47.214261] tick_nohz_handler+0x5b/0x90 [ 47.214659] smp_apic_timer_interrupt+0x70/0x180 [ 47.215131] apic_timer_interrupt+0xf/0x20 [ 47.215544] RIP: 0010:panic+0x238/0x284 [ 47.215931] Code: 48 83 c3 64 eb b0 83 3d 11 e0 47 01 00 74 05 e8 62 3b 02 00 48 c7 c6 c0 56 0e 8a 48 c7 c7 48 35 bd 89 e8 12 e0 [ 47.217782] RSP: 0018:ffff9e1ea4b43c08 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 47.218531] RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000006 [ 47.219256] RDX: 0000000000000000 RSI: 0000000000000092 RDI: ffff9e1ea4b55410 [ 47.219971] RBP: ffff9e1ea4b43c80 R08: 0000000000020a2f R09: 0000000000000005 [ 47.220677] R10: 0000000000000000 R11: ffff9e1ea4b43a8d R12: 0000000000000000 [ 47.221389] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 47.222104] ? apic_timer_interrupt+0xa/0x20 [ 47.222536] ? panic+0x235/0x284 [ 47.222866] oops_end+0x8e/0xa0 [ 47.223185] die+0x42/0x50 [ 47.223462] do_trap+0xdd/0x110 [ 47.223786] do_error_trap+0x7b/0xa0 [ 47.224147] ? blk_mq_add_to_requeue_list+0xc1/0xd0 [ 47.224641] do_invalid_op+0x3b/0x50 [ 47.225004] ? blk_mq_add_to_requeue_list+0xc1/0xd0 [ 47.225494] invalid_op+0x14/0x20 [ 47.225837] RIP: 0010:blk_mq_add_to_requeue_list+0xc1/0xd0 [ 47.226388] Code: 48 8d 53 48 49 8b 8c 24 b8 04 00 00 48 89 51 08 48 89 4b 48 49 8d 8c 24 b8 04 00 00 48 89 4b 50 49 89 94 24 b8 04 00 008 [ 47.228260] RSP: 0018:ffff9e1ea4b43e40 EFLAGS: 00010002 [ 47.228790] RAX: ffff9e1ea13c0048 RBX: ffff9e1ea13c0000 RCX: 0000000000000006 [ 47.229520] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff9e1ea13c0000 [ 47.230246] RBP: ffff9e1ea4b43e68 R08: ffffeb5bcf630680 R09: 0000000000000000 [ 47.230977] R10: 0000000000000001 R11: 0000000000000012 R12: ffff9e1ea1033a40 [ 47.231699] R13: ffff9e1ea13a8d00 R14: ffff9e1ea13a9000 R15: 0000000000000046 [ 47.232423] blk_mq_requeue_request+0x58/0x60 [ 47.232877] ide_requeue_and_plug+0x20/0x50 [ 47.233306] ide_intr+0x21a/0x230 [ 47.233648] ? idecd_open+0xc0/0xc0 [ 47.234022] __handle_irq_event_percpu+0x43/0x1e0 [ 47.234500] handle_irq_event_percpu+0x32/0x80 [ 47.234955] handle_irq_event+0x39/0x60 [ 47.235351] handle_edge_irq+0xe8/0x1c0 [ 47.235744] handle_irq+0x20/0x30 [ 47.236093] do_IRQ+0x46/0xe0 [ 47.236399] common_interrupt+0xf/0xf [ 47.236779] </IRQ> [ 47.237006] RIP: 0010:ide_output_data+0xbc/0x100 [ 47.237477] Code: 74 22 8d 41 ff 85 c9 74 24 49 8d 54 40 02 41 0f b7 00 66 41 89 01 49 83 c0 02 49 39 d0 75 ef 5b 41 5c 5d c3 4c 89 c6 445 [ 47.239359] RSP: 0018:ffffbd508059bb18 EFLAGS: 00010246 ORIG_RAX: ffffffffffffffdd [ 47.240130] RAX: ffff9e1ea13a8800 RBX: ffff9e1ea13a9000 RCX: 0000000000000000 [ 47.240855] RDX: 0000000000000170 RSI: ffff9e1ea13c012c RDI: 0000000000000000 [ 47.241581] RBP: ffffbd508059bb28 R08: ffff9e1ea13c0120 R09: 0000000000000170 [ 47.242312] R10: 000000000000000d R11: 000000000000000c R12: ffff9e1ea13a8800 [ 47.243038] R13: 000000000000000c R14: ffff9e1ea13c0000 R15: 0000000000007530 [ 47.243758] ide_transfer_pc+0x216/0x310 [ 47.244166] ? __const_udelay+0x3d/0x40 [ 47.244570] ? ide_execute_command+0x85/0xb0 [ 47.245021] ? ide_pc_intr+0x3f0/0x3f0 [ 47.245409] ? ide_check_atapi_device+0x110/0x110 [ 47.245886] ide_issue_pc+0x178/0x240 [ 47.246267] ide_cd_do_request+0x15c/0x350 [ 47.246689] ide_queue_rq+0x180/0x6b0 [ 47.247072] ? blk_mq_get_driver_tag+0xa1/0x110 [ 47.247536] blk_mq_dispatch_rq_list+0x90/0x550 [ 47.247998] ? __queue_delayed_work+0x63/0x90 [ 47.248457] ? deadline_fifo_request+0x41/0x90 [ 47.248914] blk_mq_do_dispatch_sched+0x80/0x100 [ 47.249395] blk_mq_sched_dispatch_requests+0xfc/0x170 [ 47.249922] __blk_mq_run_hw_queue+0x6f/0xd0 [ 47.250365] blk_mq_run_work_fn+0x1b/0x20 [ 47.250782] process_one_work+0x14c/0x450 [ 47.251188] worker_thread+0x4a/0x440 [ 47.251566] kthread+0x105/0x140 [ 47.251900] ? process_one_work+0x450/0x450 [ 47.252335] ? kthread_park+0x90/0x90 [ 47.252715] ret_from_fork+0x35/0x40 [ 47.253090] ---[ end trace 4562f716e88fdf00 ]--- Zhe
