INFO: task syz-executor1:8065 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D20440 8065 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: Bad RIP value. RSP: 002b:00007fffadb87c20 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fffadb87c20 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fffadb87c60 R08: 0000000000000001 R09: 00000000020fb940 R10: 00000000020fbc10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 INFO: task syz-executor2:8067 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D20440 8067 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: Bad RIP value. RSP: 002b:00007ffdcf63d6d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdcf63d6d0 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdcf63d710 R08: 0000000000000001 R09: 000000000150b940 R10: 000000000150bc10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 INFO: task syz-executor3:8070 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D20440 8070 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: Bad RIP value. RSP: 002b:00007ffc078403e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffc078403e0 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffc07840420 R08: 0000000000000001 R09: 0000000001b0e940 R10: 0000000001b0ec10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 INFO: task syz-executor4:8073 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D20920 8073 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: Bad RIP value. RSP: 002b:00007ffe77affe80 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffe77affe80 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffe77affec0 R08: 0000000000000001 R09: 00000000010f7940 R10: 00000000010f7c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000004 INFO: task syz-executor5:8078 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D20440 8078 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: Bad RIP value. RSP: 002b:00007ffc560c5d40 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffc560c5d40 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffc560c5d80 R08: 0000000000000001 R09: 00000000014ab940 R10: 00000000014abc10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 INFO: task udevd:8278 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D23880 8278 3867 0x00000000 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f50ffef6f46 Code: Bad RIP value. RSP: 002b:00007ffea5b5a120 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffea5b5a120 RCX: 00007f50ffef6f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffea5b5a180 R08: 0000000000002056 R09: 0000000000002056 R10: 00007f5100813a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffea5b5a140 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:8346 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D23896 8346 3867 0x00000000 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f50ffef6f46 Code: Bad RIP value. RSP: 002b:00007ffea5b5a120 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffea5b5a120 RCX: 00007f50ffef6f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffea5b5a180 R08: 000000000000209a R09: 000000000000209a R10: 00007f5100813a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffea5b5a140 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:15695 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D23624 15695 3867 0x00000000 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f50ffef6f46 Code: Bad RIP value. RSP: 002b:00007ffea5b5a120 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffea5b5a120 RCX: 00007f50ffef6f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffea5b5a180 R08: 0000000000003d4f R09: 0000000000003d4f R10: 00007f5100813a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffea5b5a140 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:15708 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D24088 15708 3867 0x00000000 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f50ffef6f46 Code: Bad RIP value. RSP: 002b:00007ffea5b5a120 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffea5b5a120 RCX: 00007f50ffef6f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffea5b5a180 R08: 0000000000003d5c R09: 0000000000003d5c R10: 00007f5100813a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffea5b5a140 R14: 0000000000000005 R15: 0000000000000005 INFO: task syz-executor0:28538 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #37 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D21752 28538 15632 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 percpu_down_write+0x430/0x540 kernel/locking/percpu-rwsem.c:162 register_for_each_vma+0x99/0xef0 kernel/events/uprobes.c:1012 __uprobe_register kernel/events/uprobes.c:1144 [inline] __uprobe_register+0x507/0x8e0 kernel/events/uprobes.c:1112 uprobe_register_refctr+0x2e/0x40 kernel/events/uprobes.c:1166 probe_event_enable+0x849/0xf20 kernel/trace/trace_uprobe.c:921 trace_uprobe_register+0x69b/0xcf0 kernel/trace/trace_uprobe.c:1200 perf_trace_event_reg kernel/trace/trace_event_perf.c:124 [inline] perf_trace_event_init+0x500/0x990 kernel/trace/trace_event_perf.c:199 perf_uprobe_init+0x1db/0x290 kernel/trace/trace_event_perf.c:329 perf_uprobe_event_init+0x106/0x1a0 kernel/events/core.c:8503 perf_try_init_event+0x137/0x2f0 kernel/events/core.c:9770 perf_init_event kernel/events/core.c:9801 [inline] perf_event_alloc.part.0+0x20bf/0x3520 kernel/events/core.c:10074 perf_event_alloc kernel/events/core.c:10430 [inline] __do_sys_perf_event_open+0xbb5/0x2f00 kernel/events/core.c:10531 __se_sys_perf_event_open kernel/events/core.c:10420 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10420 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: Bad RIP value. RSP: 002b:00007f3117277c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000458099 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f31172786d4 R13: 00000000004c464d R14: 00000000004d7b58 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1039: #0: 0000000033b4a6b0 (rcu_read_lock){....}, at: debug_show_all_locks+0xc6/0x41d kernel/locking/lockdep.c:4389 6 locks held by rs:main Q:Reg/7933: 1 lock held by rsyslogd/7936: #0: 000000009b6fab65 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795 2 locks held by getty/8025: #0: 000000006bc9d6f2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000bc236286 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8026: #0: 00000000806af8d7 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000005aea5886 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8027: #0: 00000000dc304778 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000009783f1b9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8028: #0: 0000000094d14a46 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000093292cc4 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8029: #0: 0000000002bbce45 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000d9ebff92 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8030: #0: 00000000d2a7a665 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000bcf8f0b9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8031: #0: 00000000b87d8538 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000e07828b6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 1 lock held by syz-executor1/8065: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor2/8067: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor3/8070: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor4/8073: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor5/8078: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/8278: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/8346: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/15695: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/15708: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor1/21353: #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 00000000bfc81420 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 5 locks held by syz-executor0/28538: #0: 00000000b589ef53 (&sig->cred_guard_mutex){+.+.}, at: __do_sys_perf_event_open+0x9c3/0x2f00 kernel/events/core.c:10511 #1: 0000000080b185f6 (&pmus_srcu){....}, at: perf_event_alloc.part.0+0x10c1/0x3520 kernel/events/core.c:10070 #2: 00000000c2694ebc (event_mutex){+.+.}, at: perf_uprobe_init+0x1d0/0x290 kernel/trace/trace_event_perf.c:328 #3: 00000000bbb9bd95 (&uprobe->register_rwsem){+.+.}, at: __uprobe_register kernel/events/uprobes.c:1140 [inline] #3: 00000000bbb9bd95 (&uprobe->register_rwsem){+.+.}, at: __uprobe_register+0x465/0x8e0 kernel/events/uprobes.c:1112 #4: 00000000bfc81420 (&dup_mmap_sem){++++}, at: percpu_down_write+0x9a/0x540 kernel/locking/percpu-rwsem.c:145 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1039 Comm: khungtaskd Not tainted 5.0.0-rc3+ #37 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1db/0x2d0 lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0xbbb/0x1170 kernel/hung_task.c:287 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:57