R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffca2a08df R14: 00007fea1c308300 R15: 0000000000022000 Call Trace: ====================================================== WARNING: possible circular locking dependency detected 5.17.0-rc8-next-20220318 #1 Not tainted ------------------------------------------------------ syz-executor.6/161906 is trying to acquire lock: ffffffff851f5518 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0xe/0x60 but task is already holding lock: ffff8880383d2420 (&ctx->lock){-...}-{2:2}, at: __perf_event_task_sched_in+0x315/0x770 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ctx->lock){-...}-{2:2}: _raw_spin_lock+0x2a/0x40 __perf_event_task_sched_out+0x519/0x1950 __schedule+0xebf/0x21a0 schedule+0xd2/0x1f0 futex_wait_queue+0x144/0x3b0 futex_wait+0x2c9/0x660 do_futex+0x2fb/0x380 __x64_sys_futex+0x1c6/0x4c0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae -> #2 (&rq->__lock){-.-.}-{2:2}: _raw_spin_lock_nested+0x30/0x40 raw_spin_rq_lock_nested+0x1e/0x30 task_fork_fair+0x63/0x4d0 sched_cgroup_fork+0x343/0x490 copy_process+0x4272/0x6d10 kernel_clone+0xe7/0xa60 kernel_thread+0xb5/0xf0 rest_init+0x24/0x3d0 start_kernel+0x489/0x4aa secondary_startup_64_no_verify+0xd5/0xdb -> #1 (&p->pi_lock){-.-.}-{2:2}: _raw_spin_lock_irqsave+0x39/0x50 try_to_wake_up+0xa5/0x1060 up+0x75/0xb0 __up_console_sem+0x6e/0x80 console_unlock+0x603/0xd40 vprintk_emit+0x1b4/0x550 vprintk+0x80/0x90 _printk+0xba/0xed regdb_fw_cb.cold+0x6c/0xa7 request_firmware_work_func+0x12e/0x230 process_one_work+0xa1c/0x16a0 worker_thread+0x637/0x1250 kthread+0x2f0/0x3a0 ret_from_fork+0x22/0x30 -> #0 ((console_sem).lock){-.-.}-{2:2}: __lock_acquire+0x2c2f/0x6120 lock_acquire+0x1a2/0x4d0 _raw_spin_lock_irqsave+0x39/0x50 down_trylock+0xe/0x60 __down_trylock_console_sem+0x3b/0xd0 vprintk_emit+0x162/0x550 vprintk+0x80/0x90 _printk+0xba/0xed show_trace_log_lvl+0x57/0x2bb ex_handler_msr+0x311/0x3a0 fixup_exception+0x307/0xff0 exc_general_protection+0xf6/0x2d0 asm_exc_general_protection+0x1e/0x30 x86_pmu_enable_all+0x2f7/0x3c0 x86_pmu_enable+0x580/0xd90 __perf_event_task_sched_in+0x5e4/0x770 finish_task_switch.isra.0+0x45c/0x870 __schedule+0x890/0x21a0 preempt_schedule_common+0x45/0xc0 __cond_resched+0x13/0x20 dput+0x50/0xe10 step_into+0xcb5/0x1d40 walk_component+0x171/0x6a0 link_path_walk.part.0+0x7f8/0xf80 path_openat+0x263/0x28a0 do_filp_open+0x1aa/0x400 do_sys_openat2+0x16d/0x4d0 __x64_sys_openat+0x13f/0x1f0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae other info that might help us debug this: Chain exists of: (console_sem).lock --> &rq->__lock --> &ctx->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ctx->lock); lock(&rq->__lock); lock(&ctx->lock); lock((console_sem).lock); *** DEADLOCK *** 2 locks held by syz-executor.6/161906: #0: ffff88806ce3f220 (&cpuctx_lock){-.-.}-{2:2}, at: __perf_event_task_sched_in+0x304/0x770 #1: ffff8880383d2420 (&ctx->lock){-...}-{2:2}, at: __perf_event_task_sched_in+0x315/0x770 stack backtrace: CPU: 0 PID: 161906 Comm: syz-executor.6 Not tainted 5.17.0-rc8-next-20220318 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 check_noncircular+0x25f/0x2e0 __lock_acquire+0x2c2f/0x6120 lock_acquire+0x1a2/0x4d0 _raw_spin_lock_irqsave+0x39/0x50 down_trylock+0xe/0x60 __down_trylock_console_sem+0x3b/0xd0 vprintk_emit+0x162/0x550 vprintk+0x80/0x90 _printk+0xba/0xed show_trace_log_lvl+0x57/0x2bb ex_handler_msr+0x311/0x3a0 fixup_exception+0x307/0xff0 exc_general_protection+0xf6/0x2d0 asm_exc_general_protection+0x1e/0x30 RIP: 0010:x86_pmu_enable_all+0x2f7/0x3c0 Code: 00 8b 7c 24 1c 48 8b 44 24 10 e8 64 58 3f 03 89 44 24 10 e8 fb 71 42 00 4c 89 fa 8b 4c 24 08 4c 89 f8 03 4c 24 10 48 c1 ea 20 <0f> 30 66 90 e8 e0 71 42 00 e9 cc fd ff ff 48 83 c4 20 5b 5d 41 5c RSP: 0018:ffff888017ae7470 EFLAGS: 00010016 RAX: 0000000f004000ff RBX: ffff8880081ebee8 RCX: 00000000c0010202 RDX: 000000000000000f RSI: ffffffff8100df45 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff810155ed R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88806ce21c20 R14: ffff88806ce21e20 R15: 0000000f004000ff x86_pmu_enable+0x580/0xd90 __perf_event_task_sched_in+0x5e4/0x770 finish_task_switch.isra.0+0x45c/0x870 __schedule+0x890/0x21a0 preempt_schedule_common+0x45/0xc0 __cond_resched+0x13/0x20 dput+0x50/0xe10 step_into+0xcb5/0x1d40 walk_component+0x171/0x6a0 link_path_walk.part.0+0x7f8/0xf80 path_openat+0x263/0x28a0 do_filp_open+0x1aa/0x400 do_sys_openat2+0x16d/0x4d0 __x64_sys_openat+0x13f/0x1f0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7d1602cb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7d135a2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f7d1613ff60 RCX: 00007f7d1602cb19 RDX: 0000000000040102 RSI: 00000000200005c0 RDI: ffffffffffffff9c RBP: 00007f7d16086f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2cd5a4ff R14: 00007f7d135a2300 R15: 0000000000022000 x86_pmu_enable+0x580/0xd90 __perf_event_task_sched_in+0x5e4/0x770 finish_task_switch.isra.0+0x45c/0x870 __schedule+0x890/0x21a0 preempt_schedule_common+0x45/0xc0 __cond_resched+0x13/0x20 dput+0x50/0xe10 step_into+0xcb5/0x1d40 walk_component+0x171/0x6a0 link_path_walk.part.0+0x7f8/0xf80 path_openat+0x263/0x28a0 do_filp_open+0x1aa/0x400 do_sys_openat2+0x16d/0x4d0 __x64_sys_openat+0x13f/0x1f0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7d1602cb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7d135a2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f7d1613ff60 RCX: 00007f7d1602cb19 RDX: 0000000000040102 RSI: 00000000200005c0 RDI: ffffffffffffff9c RBP: 00007f7d16086f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2cd5a4ff R14: 00007f7d135a2300 R15: 0000000000022000 Call Trace: x86_pmu_enable+0x580/0xd90 __perf_event_task_sched_out+0x764/0x1950 __schedule+0xebf/0x21a0 preempt_schedule_common+0x45/0xc0 __cond_resched+0x13/0x20 dput+0x50/0xe10 step_into+0xcb5/0x1d40 walk_component+0x171/0x6a0 link_path_walk.part.0+0x7f8/0xf80 path_openat+0x263/0x28a0 do_filp_open+0x1aa/0x400 do_sys_openat2+0x16d/0x4d0 __x64_sys_openat+0x13f/0x1f0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7d1602cb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7d135a2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f7d1613ff60 RCX: 00007f7d1602cb19 RDX: 0000000000040102 RSI: 00000000200005c0 RDI: ffffffffffffff9c RBP: 00007f7d16086f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2cd5a4ff R14: 00007f7d135a2300 R15: 0000000000022000 Call Trace: x86_pmu_enable+0x580/0xd90 ctx_resched+0x2b0/0x390 __perf_install_in_context+0x285/0x310 remote_function+0x125/0x1b0 flush_smp_call_function_queue+0x1df/0x610 __sysvec_call_function_single+0x92/0x3a0 sysvec_call_function_single+0x89/0xc0 asm_sysvec_call_function_single+0x12/0x20 RIP: 0010:___slab_alloc+0x3f4/0xee0 Code: 08 00 00 49 c7 47 28 00 00 00 00 48 c7 c6 8d 21 74 81 4c 89 ff e8 cc b2 b4 ff 4d 85 ed 74 06 e8 42 ff d5 ff fb 48 8b 44 24 40 <8b> 0c 24 e9 9d fc ff ff 4d 85 ff 0f 85 72 08 00 00 48 c7 43 10 00 RSP: 0018:ffff8880480e7aa8 EFLAGS: 00000246 RAX: ffffea0000893800 RBX: ffff88806ce3ba80 RCX: 1ffffffff0b19a71 RDX: 0000000000000000 RSI: ffffffff814a2141 RDI: ffffffff817421ae RBP: ffff88800784c280 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff814a2128 R11: 0000000000000001 R12: 0000000000400cc0 R13: 0000000000000200 R14: ffffffff817420e5 R15: ffff88806ce3baa0 __slab_alloc.constprop.0+0x45/0x80 __kmalloc_node+0x18f/0x470 kvmalloc_node+0x3e/0x130 seq_read_iter+0x818/0x12b0 kernfs_fop_read_iter+0x516/0x6f0 new_sync_read+0x42f/0x6f0 vfs_read+0x499/0x5e0 ksys_read+0x12d/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff865d2ae8e Code: c0 e9 b6 fe ff ff 50 48 8d 3d 6e 18 0a 00 e8 b9 e7 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28 RSP: 002b:00007ffd4f3ce5f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000056079b989c20 RCX: 00007ff865d2ae8e RDX: 0000000000001000 RSI: 000056079ba73050 RDI: 0000000000000010 RBP: 00007ff865dfc4a0 R08: 0000000000000010 R09: 00007ff865dfabe0 R10: 000000000000006f R11: 0000000000000246 R12: 0000000000001001 R13: 000056079ba73050 R14: 0000000000000d68 R15: 00007ff865dfb8a0 Call Trace: x86_pmu_enable+0x580/0xd90 __perf_event_task_sched_in+0x5e4/0x770 finish_task_switch.isra.0+0x45c/0x870 __schedule+0x890/0x21a0 schedule+0xd2/0x1f0 futex_wait_queue+0x144/0x3b0 futex_wait+0x2c9/0x660 do_futex+0x2fb/0x380 __x64_sys_futex+0x1c6/0x4c0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fcff2672b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcfefbe8218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fcff2785f68 RCX: 00007fcff2672b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fcff2785f68 RBP: 00007fcff2785f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcff2785f6c R13: 00007ffecb218bdf R14: 00007fcfefbe8300 R15: 0000000000022000 Call Trace: x86_pmu_enable+0x580/0xd90 __perf_event_task_sched_out+0x764/0x1950 __schedule+0xebf/0x21a0 schedule+0xd2/0x1f0 futex_wait_queue+0x144/0x3b0 futex_wait+0x2c9/0x660 do_futex+0x2fb/0x380 __x64_sys_futex+0x1c6/0x4c0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fcff2672b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcfefbe8218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fcff2785f68 RCX: 00007fcff2672b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fcff2785f68 RBP: 00007fcff2785f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcff2785f6c R13: 00007ffecb218bdf R14: 00007fcfefbe8300 R15: 0000000000022000 Call Trace: x86_pmu_enable+0x580/0xd90 ctx_resched+0x2b0/0x390 __perf_install_in_context+0x285/0x310 remote_function+0x125/0x1b0 flush_smp_call_function_queue+0x1df/0x610 __sysvec_call_function_single+0x92/0x3a0 sysvec_call_function_single+0x89/0xc0 asm_sysvec_call_function_single+0x12/0x20 RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 5e 3f 1b fd 48 89 ef e8 56 bc 1b fd e8 d1 8b 3c fd fb bf 01 00 00 00 96 c8 11 fd 65 8b 05 cf d9 f4 7b 85 c0 74 02 5d c3 0f 1f 44 00 RSP: 0018:ffff88800c067e48 EFLAGS: 00000246 RAX: 0000000000000007 RBX: ffff8880093e1ac0 RCX: 1ffffffff0b19a71 RDX: 0000000000000000 RSI: ffffffff814a2141 RDI: 0000000000000001 RBP: ffff88806ce379c8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff814a2128 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888008ec9080 R14: ffff88806ce379c8 R15: ffff8880083e9800 worker_thread+0x15a/0x1250 kthread+0x2f0/0x3a0 ret_from_fork+0x22/0x30 Call Trace: x86_pmu_enable+0x580/0xd90 ctx_resched+0x2b0/0x390 __perf_install_in_context+0x285/0x310 remote_function+0x125/0x1b0 generic_exec_single+0x203/0x300 smp_call_function_single+0x189/0x460 perf_install_in_context+0x4a3/0x550 __do_sys_perf_event_open+0x1bf0/0x3040 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fea1ed92b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fea1c308188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fea1eea5f60 RCX: 00007fea1ed92b19 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00007fea1edecf6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffca2a08df R14: 00007fea1c308300 R15: 0000000000022000 loop7: detected capacity change from 0 to 40 Call Trace: x86_pmu_enable+0x580/0xd90 ctx_resched+0x2b0/0x390 __perf_install_in_context+0x285/0x310 remote_function+0x125/0x1b0 generic_exec_single+0x203/0x300 smp_call_function_single+0x189/0x460 perf_install_in_context+0x4a3/0x550 __do_sys_perf_event_open+0x1bf0/0x3040 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fea1ed92b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fea1c308188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fea1eea5f60 RCX: 00007fea1ed92b19 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00007fea1edecf6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffca2a08df R14: 00007fea1c308300 R15: 0000000000022000 loop7: detected capacity change from 0 to 40 loop7: detected capacity change from 0 to 40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, want=92, limit=40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, want=96, limit=40 loop7: detected capacity change from 0 to 40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, want=92, limit=40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, want=96, limit=40 loop7: detected capacity change from 0 to 40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, want=92, limit=40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, want=96, limit=40 netlink: 196 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 196 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 196 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 196 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. netlink: 196 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 196 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. netlink: 196 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 196 bytes leftover after parsing attributes in process `syz-executor.5'. audit: type=1400 audit(1647604550.141:214): avc: denied { create } for pid=163363 comm="syz-executor.7" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:getty_log_t:s0 tclass=tcp_socket permissive=1 audit: type=1400 audit(1647604550.151:215): avc: denied { listen } for pid=163363 comm="syz-executor.7" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:getty_log_t:s0 tclass=tcp_socket permissive=1 sr 1:0:0:0: [sr0] tag#0 unaligned transfer blk_print_req_error: 23 callbacks suppressed I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 buffer_io_error: 2310 callbacks suppressed Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 2, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 3, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 4, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 5, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 6, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 7, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer scsi_io_completion_action: 23 callbacks suppressed sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 01 00 00 01 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer ---------------- Code disassembly (best guess): 0: 00 8b 7c 24 1c 48 add %cl,0x481c247c(%rbx) 6: 8b 44 24 10 mov 0x10(%rsp),%eax a: e8 64 58 3f 03 callq 0x33f5873 f: 89 44 24 10 mov %eax,0x10(%rsp) 13: e8 fb 71 42 00 callq 0x427213 18: 4c 89 fa mov %r15,%rdx 1b: 8b 4c 24 08 mov 0x8(%rsp),%ecx 1f: 4c 89 f8 mov %r15,%rax 22: 03 4c 24 10 add 0x10(%rsp),%ecx 26: 48 c1 ea 20 shr $0x20,%rdx * 2a: 0f 30 wrmsr <-- trapping instruction 2c: 66 90 xchg %ax,%ax 2e: e8 e0 71 42 00 callq 0x427213 33: e9 cc fd ff ff jmpq 0xfffffe04 38: 48 83 c4 20 add $0x20,%rsp 3c: 5b pop %rbx 3d: 5d pop %rbp 3e: 41 5c pop %r12