INFO: task udevd:7563 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D27440 7563 3868 0x00000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f4191fcdf46 Code: Bad RIP value. RSP: 002b:00007fff9160f450 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff9160f450 RCX: 00007f4191fcdf46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff9160f4b0 R08: 0000000000001d8b R09: 0000000000001d8b R10: 00007f41928eaa70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9160f470 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:7881 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D27920 7881 3868 0x00000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f4191fcdf46 Code: Bad RIP value. RSP: 002b:00007fff9160f450 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff9160f450 RCX: 00007f4191fcdf46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff9160f4b0 R08: 0000000000001ec9 R09: 0000000000001ec9 R10: 00007f41928eaa70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9160f470 R14: 0000000000000005 R15: 0000000000000005 INFO: task syz-executor.1:7912 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D24000 7912 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4563fa Code: 04 25 ff 7f 00 00 89 44 24 50 48 8b 6c 24 30 48 83 c4 38 c3 48 8b 74 24 48 e9 43 ff ff ff c7 44 24 50 00 00 00 00 48 8b 6c 24 <30> 48 83 c4 38 c3 e8 4b 3b 00 00 e9 c6 fe ff ff cc cc cc cc cc cc RSP: 002b:00007ffd08a46120 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd08a46120 RCX: 00000000004563fa RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffd08a46160 R08: 0000000000000001 R09: 000000000248e940 R10: 000000000248ec10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 INFO: task syz-executor.2:7915 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D24448 7915 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4563fa Code: 04 25 ff 7f 00 00 89 44 24 50 48 8b 6c 24 30 48 83 c4 38 c3 48 8b 74 24 48 e9 43 ff ff ff c7 44 24 50 00 00 00 00 48 8b 6c 24 <30> 48 83 c4 38 c3 e8 4b 3b 00 00 e9 c6 fe ff ff cc cc cc cc cc cc RSP: 002b:00007fffa2d1fb10 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fffa2d1fb10 RCX: 00000000004563fa RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fffa2d1fb50 R08: 0000000000000001 R09: 00000000011ff940 R10: 00000000011ffc10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 INFO: task syz-executor.3:7917 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D24000 7917 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4563fa Code: 04 25 ff 7f 00 00 89 44 24 50 48 8b 6c 24 30 48 83 c4 38 c3 48 8b 74 24 48 e9 43 ff ff ff c7 44 24 50 00 00 00 00 48 8b 6c 24 <30> 48 83 c4 38 c3 e8 4b 3b 00 00 e9 c6 fe ff ff cc cc cc cc cc cc RSP: 002b:00007ffcd80b83a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffcd80b83a0 RCX: 00000000004563fa RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffcd80b83e0 R08: 0000000000000001 R09: 0000000001739940 R10: 0000000001739c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 INFO: task syz-executor.4:7922 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D24000 7922 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4563fa Code: 04 25 ff 7f 00 00 89 44 24 50 48 8b 6c 24 30 48 83 c4 38 c3 48 8b 74 24 48 e9 43 ff ff ff c7 44 24 50 00 00 00 00 48 8b 6c 24 <30> 48 83 c4 38 c3 e8 4b 3b 00 00 e9 c6 fe ff ff cc cc cc cc cc cc RSP: 002b:00007ffff416aef0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffff416aef0 RCX: 00000000004563fa RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffff416af30 R08: 0000000000000001 R09: 0000000001f10940 R10: 0000000001f10c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000004 INFO: task syz-executor.5:7924 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D24000 7924 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4563fa Code: 04 25 ff 7f 00 00 89 44 24 50 48 8b 6c 24 30 48 83 c4 38 c3 48 8b 74 24 48 e9 43 ff ff ff c7 44 24 50 00 00 00 00 48 8b 6c 24 <30> 48 83 c4 38 c3 e8 4b 3b 00 00 e9 c6 fe ff ff cc cc cc cc cc cc RSP: 002b:00007ffda36f4490 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffda36f4490 RCX: 00000000004563fa RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffda36f44d0 R08: 0000000000000001 R09: 000000000225b940 R10: 000000000225bc10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 INFO: task udevd:7996 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D28032 7996 3868 0x00000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f4191fcdf46 Code: Bad RIP value. RSP: 002b:00007fff9160f450 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff9160f450 RCX: 00007f4191fcdf46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff9160f4b0 R08: 0000000000001f3c R09: 0000000000001f3c R10: 00007f41928eaa70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9160f470 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:8095 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D28032 8095 3868 0x00000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f4191fcdf46 Code: Bad RIP value. RSP: 002b:00007fff9160f450 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff9160f450 RCX: 00007f4191fcdf46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff9160f4b0 R08: 0000000000001f9f R09: 0000000000001f9f R10: 00007f41928eaa70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9160f470 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:8241 blocked for more than 140 seconds. Not tainted 5.0.0-rc6+ #74 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D28032 8241 3868 0x00000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:304 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+0x8d/0xf0 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.part.0+0x2b94/0x79a0 kernel/fork.c:1917 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 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+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f4191fcdf46 Code: Bad RIP value. RSP: 002b:00007fff9160f450 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff9160f450 RCX: 00007f4191fcdf46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff9160f4b0 R08: 0000000000002031 R09: 0000000000002031 R10: 00007f41928eaa70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9160f470 R14: 0000000000000005 R15: 0000000000000005 Showing all locks held in the system: 1 lock held by khungtaskd/1040: #0: 00000000cfdffe2a (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4389 1 lock held by udevd/7563: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by rsyslogd/7783: #0: 000000006b539179 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:795 2 locks held by getty/7874: #0: 00000000f92a249d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000065187b2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7875: #0: 0000000002b14f52 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000005f1a9d25 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7876: #0: 000000000c3b4d55 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000004948f126 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7877: #0: 0000000057079ea2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000a3dbd27c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7878: #0: 0000000008a103c9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000007284c3db (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7879: #0: 00000000244311f6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000000707d556 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7880: #0: 0000000016433752 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000000b97097 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 1 lock held by udevd/7881: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by syz-executor.1/7912: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by syz-executor.2/7915: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by syz-executor.3/7917: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by syz-executor.4/7922: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by syz-executor.5/7924: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by udevd/7996: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by udevd/8095: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by udevd/8241: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 1 lock held by syz-executor.1/8755: #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000000afc83a1 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b94/0x79a0 kernel/fork.c:1917 5 locks held by syz-executor.0/10626: #0: 0000000064343d6b (&sig->cred_guard_mutex){+.+.}, at: __do_sys_perf_event_open+0x6e1/0x2690 kernel/events/core.c:10511 #1: 00000000eca3b424 (&pmus_srcu){....}, at: perf_event_alloc.part.0+0xd56/0x2e00 kernel/events/core.c:10070 #2: 00000000c3122cc4 (event_mutex){+.+.}, at: perf_uprobe_init+0x1d0/0x290 kernel/trace/trace_event_perf.c:328 #3: 000000007a875503 (&uprobe->register_rwsem){+.+.}, at: __uprobe_register kernel/events/uprobes.c:1140 [inline] #3: 000000007a875503 (&uprobe->register_rwsem){+.+.}, at: __uprobe_register+0x3d3/0x7d0 kernel/events/uprobes.c:1112 #4: 000000000afc83a1 (&dup_mmap_sem){++++}, at: percpu_down_write+0x6a/0x440 kernel/locking/percpu-rwsem.c:145 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1040 Comm: khungtaskd Not tainted 5.0.0-rc6+ #74 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+0x172/0x1f0 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+0x9df/0xee0 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 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:57