INFO: task udevd:3874 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
udevd           D24032  3874      1 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:285 [inline]
 rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:302
 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:1512
 dup_mmap kernel/fork.c:471 [inline]
 dup_mm kernel/fork.c:1320 [inline]
 copy_mm kernel/fork.c:1375 [inline]
 copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x257/0xfd0 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: 0033:0x7f0443e46f46
Code: Bad RIP value.
RSP: 002b:00007ffcf2c684a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffcf2c684a0 RCX: 00007f0443e46f46
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffcf2c68500 R08: 0000000000000f22 R09: 0000000000000f22
R10: 00007f0444763a70 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf2c684c0 R14: 0000000001faf250 R15: 0000000000000703
INFO: task syz-executor.1:8009 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1  D24000  8009      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:285 [inline]
 rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:302
 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:1512
 dup_mmap kernel/fork.c:471 [inline]
 dup_mm kernel/fork.c:1320 [inline]
 copy_mm kernel/fork.c:1375 [inline]
 copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x257/0xfd0 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: 0033:0x45640a
Code: 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 64 48 8b 0c 25 f8 ff ff ff 48 3b 61 10 0f 86 56
RSP: 002b:00007ffd9630bb60 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffd9630bb60 RCX: 000000000045640a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffd9630bba0 R08: 0000000000000001 R09: 0000000001fd0940
R10: 0000000001fd0c10 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
INFO: task syz-executor.2:8011 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2  D24000  8011      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:285 [inline]
 rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:302
 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:1512
 dup_mmap kernel/fork.c:471 [inline]
 dup_mm kernel/fork.c:1320 [inline]
 copy_mm kernel/fork.c:1375 [inline]
 copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x257/0xfd0 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: 0033:0x45640a
Code: 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 64 48 8b 0c 25 f8 ff ff ff 48 3b 61 10 0f 86 56
RSP: 002b:00007ffde1d7bfe0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffde1d7bfe0 RCX: 000000000045640a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffde1d7c020 R08: 0000000000000001 R09: 00000000022ed940
R10: 00000000022edc10 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
INFO: task syz-executor.3:8014 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D24048  8014      1 0x00000006
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:285 [inline]
 rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:302
 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:1512
 dup_mmap kernel/fork.c:471 [inline]
 dup_mm kernel/fork.c:1320 [inline]
 copy_mm kernel/fork.c:1375 [inline]
 copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x257/0xfd0 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: 0033:0x45640a
Code: 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 64 48 8b 0c 25 f8 ff ff ff 48 3b 61 10 0f 86 56
RSP: 002b:00007fff96503c50 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fff96503c50 RCX: 000000000045640a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fff96503c90 R08: 0000000000000001 R09: 0000000001402940
R10: 0000000001402c10 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
INFO: task syz-executor.4:8017 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4  D24000  8017      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:285 [inline]
 rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:302
 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:1512
 dup_mmap kernel/fork.c:471 [inline]
 dup_mm kernel/fork.c:1320 [inline]
 copy_mm kernel/fork.c:1375 [inline]
 copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x257/0xfd0 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: 0033:0x45640a
Code: 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 64 48 8b 0c 25 f8 ff ff ff 48 3b 61 10 0f 86 56
RSP: 002b:00007ffc435d7ee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffc435d7ee0 RCX: 000000000045640a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffc435d7f20 R08: 0000000000000001 R09: 0000000002912940
R10: 0000000002912c10 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000004
INFO: task syz-executor.5:8021 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5  D24448  8021      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:285 [inline]
 rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:302
 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:1512
 dup_mmap kernel/fork.c:471 [inline]
 dup_mm kernel/fork.c:1320 [inline]
 copy_mm kernel/fork.c:1375 [inline]
 copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x257/0xfd0 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: 0033:0x45640a
Code: 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 64 48 8b 0c 25 f8 ff ff ff 48 3b 61 10 0f 86 56
RSP: 002b:00007fff40c745b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fff40c745b0 RCX: 000000000045640a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fff40c745f0 R08: 0000000000000001 R09: 000000000261c940
R10: 000000000261cc10 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005
INFO: task udevd:548 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
udevd           D28032   548   3874 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:285 [inline]
 rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:302
 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:1512
 dup_mmap kernel/fork.c:471 [inline]
 dup_mm kernel/fork.c:1320 [inline]
 copy_mm kernel/fork.c:1375 [inline]
 copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x257/0xfd0 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: 0033:0x7f0443e46f46
Code: Bad RIP value.
RSP: 002b:00007ffcf2c60d30 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffcf2c60d30 RCX: 00007f0443e46f46
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffcf2c60d90 R08: 0000000000000224 R09: 0000000000000224
R10: 00007f0444763a70 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf2c60d50 R14: 0000000000000005 R15: 0000000000000005
INFO: task udevd:7170 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
udevd           D28144  7170   3874 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:285 [inline]
 rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:302
 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:1512
 dup_mmap kernel/fork.c:471 [inline]
 dup_mm kernel/fork.c:1320 [inline]
 copy_mm kernel/fork.c:1375 [inline]
 copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x257/0xfd0 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: 0033:0x7f0443e46f46
Code: Bad RIP value.
RSP: 002b:00007ffcf2c60d30 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffcf2c60d30 RCX: 00007f0443e46f46
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffcf2c60d90 R08: 0000000000001c02 R09: 0000000000001c02
R10: 00007f0444763a70 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf2c60d50 R14: 0000000000000005 R15: 0000000000000005
INFO: task udevd:2857 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
udevd           D28272  2857   3874 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:285 [inline]
 rwsem_down_read_failed+0x213/0x420 kernel/locking/rwsem-xadd.c:302
 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:1512
 dup_mmap kernel/fork.c:471 [inline]
 dup_mm kernel/fork.c:1320 [inline]
 copy_mm kernel/fork.c:1375 [inline]
 copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x257/0xfd0 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: 0033:0x7f0443e46f46
Code: Bad RIP value.
RSP: 002b:00007ffcf2c60d30 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffcf2c60d30 RCX: 00007f0443e46f46
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffcf2c60d90 R08: 0000000000000b29 R09: 0000000000000b29
R10: 00007f0444763a70 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf2c60d50 R14: 0000000000000005 R15: 0000000000000005
INFO: task syz-executor.0:4174 blocked for more than 140 seconds.
      Not tainted 5.0.0-rc6-next-20190212 #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D26904  4174   8006 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 schedule+0x92/0x180 kernel/sched/core.c:3562
 percpu_down_write+0x342/0x440 kernel/locking/percpu-rwsem.c:162
 register_for_each_vma+0x8c/0xde0 kernel/events/uprobes.c:999
 __uprobe_register kernel/events/uprobes.c:1131 [inline]
 __uprobe_register+0x464/0x7d0 kernel/events/uprobes.c:1099
 uprobe_register+0x28/0x30 kernel/events/uprobes.c:1146
 probe_event_enable+0x474/0xc40 kernel/trace/trace_uprobe.c:931
 trace_uprobe_register+0x4ba/0x960 kernel/trace/trace_uprobe.c:1207
 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:8712
 perf_try_init_event+0x137/0x3f0 kernel/events/core.c:9979
 perf_init_event kernel/events/core.c:10019 [inline]
 perf_event_alloc.part.0+0x1e1a/0x2fb0 kernel/events/core.c:10296
 perf_event_alloc kernel/events/core.c:10652 [inline]
 __do_sys_perf_event_open+0x830/0x24d0 kernel/events/core.c:10753
 __se_sys_perf_event_open kernel/events/core.c:10642 [inline]
 __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10642
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e39
Code: 44 24 18 00 00 00 00 e8 a5 b0 fc ff 48 8b 44 24 38 48 89 04 24 e8 d7 77 fb ff 48 8b 6c 24 40 48 83 c4 48 c3 48 89 d1 eb 90 e8 <73> 20 00 00 e9 7e fe ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc
RSP: 002b:00007f2e53812c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457e39
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f2e538136d4
R13: 00000000004c44b2 R14: 00000000004d7b78 R15: 00000000ffffffff

Showing all locks held in the system:
1 lock held by khungtaskd/1035:
 #0: 00000000413433c3 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4377
1 lock held by udevd/3874:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
1 lock held by rsyslogd/7859:
 #0: 000000008303036b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:796
2 locks held by getty/7971:
 #0: 0000000023fa75e9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 00000000c34fd662 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7972:
 #0: 000000001b2eb326 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 0000000060b7404c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7973:
 #0: 00000000933afc05 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 0000000071692224 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7974:
 #0: 0000000063b80a1a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 00000000d66e343f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7975:
 #0: 00000000a445fc85 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 0000000076789bd3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7976:
 #0: 00000000c8dc517d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 000000009cde7021 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/7977:
 #0: 000000001725ccbe (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
 #1: 00000000f7333cc1 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
1 lock held by syz-executor.1/8009:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
1 lock held by syz-executor.2/8011:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
1 lock held by syz-executor.3/8014:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
1 lock held by syz-executor.4/8017:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
1 lock held by syz-executor.5/8021:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
1 lock held by syz-executor.1/19573:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
1 lock held by udevd/548:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
1 lock held by udevd/7170:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
1 lock held by udevd/2857:
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:471 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline]
 #0: 000000006d3b4728 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2bc1/0x79e0 kernel/fork.c:1917
5 locks held by syz-executor.0/4174:
 #0: 00000000f19757da (&sig->cred_guard_mutex){+.+.}, at: __do_sys_perf_event_open+0x6d2/0x24d0 kernel/events/core.c:10733
 #1: 000000003823d9d3 (&pmus_srcu){....}, at: perf_event_alloc.part.0+0xd47/0x2fb0 kernel/events/core.c:10292
 #2: 000000006841b18f (event_mutex){+.+.}, at: perf_uprobe_init+0x1d0/0x290 kernel/trace/trace_event_perf.c:328
 #3: 000000006d5098c1 (&uprobe->register_rwsem){+.+.}, at: __uprobe_register kernel/events/uprobes.c:1127 [inline]
 #3: 000000006d5098c1 (&uprobe->register_rwsem){+.+.}, at: __uprobe_register+0x3d3/0x7d0 kernel/events/uprobes.c:1099
 #4: 000000006d3b4728 (&dup_mmap_sem){++++}, at: percpu_down_write+0x6a/0x440 kernel/locking/percpu-rwsem.c:145

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 1035 Comm: khungtaskd Not tainted 5.0.0-rc6-next-20190212 #33
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:204 [inline]
 watchdog+0x9b2/0xeb0 kernel/hung_task.c:288
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1: