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 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 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 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 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 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: