bisecting fixing commit since 1d67c8d993baf8ab6be8a2154b1a94ec1311c869 building syzkaller on f115ae985a399ddce060f448097b8068450a8f48 testing commit 1d67c8d993baf8ab6be8a2154b1a94ec1311c869 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 9f1e9276e7f0b496472355ea540b0ce12b53571d2ad4da8708c3118a771c7a81 all runs: crashed: INFO: task hung in sys_io_destroy testing current HEAD 519d81956ee277b4419c723adfb154603c2565ba testing commit 519d81956ee277b4419c723adfb154603c2565ba compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ba1901d0767f54d14cbf27f569e14bfde1dbecb10e078bd544fdc035fdd9d065 all runs: crashed: INFO: task hung in sys_io_destroy revisions tested: 2, total time: 25m42.638396541s (build: 12m52.299128699s, test: 12m18.851725223s) the crash still happens on HEAD commit msg: Linux 5.15-rc6 crash: INFO: task hung in sys_io_destroy INFO: task syz-executor.1:9047 blocked for more than 143 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:29408 pid: 9047 ppid: 9046 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007f411b147188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f411b126000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe04f327ef R14: 00007f411b147300 R15: 0000000000022000 INFO: task syz-executor.3:9093 blocked for more than 143 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29872 pid: 9093 ppid: 9092 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007f4649aa8188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f4649a87000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc1452cd9f R14: 00007f4649aa8300 R15: 0000000000022000 INFO: task syz-executor.0:9151 blocked for more than 144 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:29872 pid: 9151 ppid: 9150 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007efdc8abf188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007efdc8a9e000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc62c9d24f R14: 00007efdc8abf300 R15: 0000000000022000 INFO: task syz-executor.2:9165 blocked for more than 144 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29872 pid: 9165 ppid: 9162 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007fdc1dfcb188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fdc1dfaa000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd544852ef R14: 00007fdc1dfcb300 R15: 0000000000022000 INFO: task syz-executor.5:9167 blocked for more than 144 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:29408 pid: 9167 ppid: 9166 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007fd8c6947188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fd8c6926000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffa31c787f R14: 00007fd8c6947300 R15: 0000000000022000 INFO: task syz-executor.4:9171 blocked for more than 144 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:29872 pid: 9171 ppid: 9170 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007f6375fa7188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f6375f86000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffcfc068b8f R14: 00007f6375fa7300 R15: 0000000000022000 INFO: task syz-executor.3:9183 blocked for more than 144 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29872 pid: 9183 ppid: 9182 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007f4649aa8188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f4649a87000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc1452cd9f R14: 00007f4649aa8300 R15: 0000000000022000 INFO: task syz-executor.2:9213 blocked for more than 145 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29872 pid: 9213 ppid: 9210 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007fdc1dfcb188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fdc1dfaa000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd544852ef R14: 00007fdc1dfcb300 R15: 0000000000022000 INFO: task syz-executor.4:9220 blocked for more than 145 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:29872 pid: 9220 ppid: 9217 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007f6375fa7188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f6375f86000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffcfc068b8f R14: 00007f6375fa7300 R15: 0000000000022000 INFO: task syz-executor.5:9222 blocked for more than 145 seconds. Not tainted 5.15.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:29872 pid: 9222 ppid: 9221 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x90d/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __do_sys_io_destroy fs/aio.c:1402 [inline] __se_sys_io_destroy fs/aio.c:1380 [inline] __x64_sys_io_destroy+0x15a/0x1b0 fs/aio.c:1380 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 RSP: 002b:00007fd8c6947188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fd8c6926000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffa31c787f R14: 00007fd8c6947300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/26: #0: ffffffff8ab76840 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446 1 lock held by in:imklog/6446: #0: ffff888018c49270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x9c/0xb0 fs/file.c:990 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.15.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x30/0xc0 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x11a/0x160 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0x88c/0xbf0 kernel/hung_task.c:295 kthread+0x38b/0x460 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 17656 Comm: syz-executor.1 Not tainted 5.15.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rq_unpin_lock kernel/sched/sched.h:1561 [inline] RIP: 0010:rq_unlock kernel/sched/sched.h:1652 [inline] RIP: 0010:ttwu_queue kernel/sched/core.c:3775 [inline] RIP: 0010:try_to_wake_up+0x4e0/0x1350 kernel/sched/core.c:4097 Code: e8 95 5e 09 00 4c 89 e7 89 44 24 50 e8 f9 3a ff ff 8b 54 24 04 48 89 ee 4c 89 e7 48 8d 4c 24 48 e8 f5 a2 ff ff 4c 8b 44 24 08 <8b> 74 24 50 4c 89 c7 e8 a4 5a 09 00 4c 89 e7 e8 cc 71 23 07 4c 89 RSP: 0018:ffffc90000dc0d70 EFLAGS: 00000082 RAX: dffffc0000000000 RBX: 1ffff920001b81b3 RCX: 0000000000000001 RDX: 1ffff110173e64c0 RSI: ffffffff88cb4a80 RDI: ffffffff8a611130 RBP: ffff88806e9f3880 R08: ffff8880b9f31a18 R09: ffff8880b9f329cb R10: ffffed10173e6539 R11: 0000000000000310 R12: ffff8880b9f31a00 R13: 0000000000000087 R14: ffff88806e9f4198 R15: ffff88806e9f38c8 FS: 0000000002ca1400(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f63b6d3e000 CR3: 000000004b342000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hrtimer_wakeup+0x35/0x40 kernel/time/hrtimer.c:1939 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x4d7/0xb00 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x2f5/0x780 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:kmap_local_sched_in kernel/sched/core.c:4720 [inline] RIP: 0010:finish_task_switch.isra.0+0x23c/0xa10 kernel/sched/core.c:4822 Code: 8b 3a 4c 89 e7 48 c7 02 00 00 00 00 ff d1 4d 85 ff 75 bf 4c 89 e7 e8 83 73 24 07 e8 fe f8 27 00 fb 65 48 8b 1c 25 40 f0 01 00 <48> 8d bb 50 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffffc90011c7fb48 EFLAGS: 00000202 RAX: 0000000000001bd9 RBX: ffff8880799d54c0 RCX: 1ffffffff18fe121 RDX: 0000000000000000 RSI: ffffffff88cb47a0 RDI: ffffffff892084e0 RBP: ffffc90011c7fb88 R08: 0000000000000001 R09: 0000000000000001 R10: ffffed10173e6340 R11: 0000000000000001 R12: ffff8880b9f31a00 R13: ffff8880171a8000 R14: 0000000000000000 R15: ffff8880b9f31a18 context_switch kernel/sched/core.c:4943 [inline] __schedule+0x915/0x26c0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x20d/0x5b0 kernel/time/hrtimer.c:2044 hrtimer_nanosleep+0x1ac/0x3b0 kernel/time/hrtimer.c:2097 common_nsleep+0x74/0xb0 kernel/time/posix-timers.c:1227 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1267 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1245 [inline] __x64_sys_clock_nanosleep+0x256/0x3b0 kernel/time/posix-timers.c:1245 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x48a801 Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 aa e7 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 e3 e7 ff ff 48 8b 04 24 eb 97 66 2e 0f 1f RSP: 002b:00007ffe04f32800 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 0000000000039510 RCX: 000000000048a801 RDX: 00007ffe04f32840 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffe04fd4080 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000056bf80 R13: 000000000056cb00 R14: 000000000056bf80 R15: 00000000000391cf ---------------- Code disassembly (best guess): 0: e8 95 5e 09 00 callq 0x95e9a 5: 4c 89 e7 mov %r12,%rdi 8: 89 44 24 50 mov %eax,0x50(%rsp) c: e8 f9 3a ff ff callq 0xffff3b0a 11: 8b 54 24 04 mov 0x4(%rsp),%edx 15: 48 89 ee mov %rbp,%rsi 18: 4c 89 e7 mov %r12,%rdi 1b: 48 8d 4c 24 48 lea 0x48(%rsp),%rcx 20: e8 f5 a2 ff ff callq 0xffffa31a 25: 4c 8b 44 24 08 mov 0x8(%rsp),%r8 * 2a: 8b 74 24 50 mov 0x50(%rsp),%esi <-- trapping instruction 2e: 4c 89 c7 mov %r8,%rdi 31: e8 a4 5a 09 00 callq 0x95ada 36: 4c 89 e7 mov %r12,%rdi 39: e8 cc 71 23 07 callq 0x723720a 3e: 4c rex.WR 3f: 89 .byte 0x89