INFO: task syz-executor.1:6601 can't die for more than 143 seconds. task:syz-executor.1 state:R running task stack:27224 pid: 6601 ppid: 15701 flags:0x00024006 Call Trace: context_switch kernel/sched/core.c:4955 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6236 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6408 __cond_resched+0x13/0x20 kernel/sched/core.c:8121 _cond_resched include/linux/sched.h:2033 [inline] task_work_run+0xf5/0x1a0 kernel/task_work.c:166 tracehook_notify_signal include/linux/tracehook.h:214 [inline] handle_signal_work kernel/entry/common.c:146 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x256/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f15b4d7d709 RSP: 002b:00007f15b22f4218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f15b4e81f68 RCX: 00007f15b4d7d709 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f15b4e81f68 RBP: 00007f15b4e81f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f15b4e81f6c R13: 00007ffe5257acdf R14: 00007f15b22f4300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8b980860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446 1 lock held by in:imklog/6232: =============================================