INFO: task syz-executor.0:7391 blocked for more than 143 seconds. Not tainted 5.1.0-rc2-next-20190329 #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D24312 7391 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 include/linux/percpu-rwsem.h:49 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1512 dup_mmap kernel/fork.c:471 [inline] dup_mm kernel/fork.c:1329 [inline] copy_mm kernel/fork.c:1385 [inline] copy_process.part.0+0x2bcc/0x7a90 kernel/fork.c:1945 copy_process kernel/fork.c:1738 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2257 __do_sys_clone kernel/fork.c:2364 [inline] __se_sys_clone kernel/fork.c:2358 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2358 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4567da Code: 00 00 48 8b 6c 24 20 48 83 c4 28 c3 e8 df 36 fd ff 0f 0b e8 88 37 00 00 eb a6 cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff ff ff 48 <3b> 61 10 76 62 48 83 ec 38 48 89 6c 24 30 48 8d 6c 24 30 48 8b 42 RSP: 002b:00007ffcd302cfa0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffcd302cfa0 RCX: 00000000004567da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffcd302cfe0 R08: 0000000000000001 R09: 0000000000dfc940 R10: 0000000000dfcc10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffcd302d030 INFO: task syz-executor.3:7398 blocked for more than 143 seconds. Not tainted 5.1.0-rc2-next-20190329 #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D24480 7398 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 include/linux/percpu-rwsem.h:49 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1512 dup_mmap kernel/fork.c:471 [inline] dup_mm kernel/fork.c:1329 [inline] copy_mm kernel/fork.c:1385 [inline] copy_process.part.0+0x2bcc/0x7a90 kernel/fork.c:1945 copy_process kernel/fork.c:1738 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2257 __do_sys_clone kernel/fork.c:2364 [inline] __se_sys_clone kernel/fork.c:2358 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2358 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4567da Code: 00 00 48 8b 6c 24 20 48 83 c4 28 c3 e8 df 36 fd ff 0f 0b e8 88 37 00 00 eb a6 cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff ff ff 48 <3b> 61 10 76 62 48 83 ec 38 48 89 6c 24 30 48 8d 6c 24 30 48 8b 42 RSP: 002b:00007ffc36b87fc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffc36b87fc0 RCX: 00000000004567da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffc36b88000 R08: 0000000000000001 R09: 0000000002747940 R10: 0000000002747c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffc36b88050 INFO: task syz-executor.4:7401 blocked for more than 143 seconds. Not tainted 5.1.0-rc2-next-20190329 #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D24312 7401 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 include/linux/percpu-rwsem.h:49 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1512 dup_mmap kernel/fork.c:471 [inline] dup_mm kernel/fork.c:1329 [inline] copy_mm kernel/fork.c:1385 [inline] copy_process.part.0+0x2bcc/0x7a90 kernel/fork.c:1945 copy_process kernel/fork.c:1738 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2257 __do_sys_clone kernel/fork.c:2364 [inline] __se_sys_clone kernel/fork.c:2358 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2358 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4567da Code: Bad RIP value. RSP: 002b:00007ffd93c83590 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd93c83590 RCX: 00000000004567da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffd93c835d0 R08: 0000000000000001 R09: 0000000001770940 R10: 0000000001770c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffd93c83620 INFO: task syz-executor.1:8283 blocked for more than 144 seconds. Not tainted 5.1.0-rc2-next-20190329 #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D24600 8283 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 include/linux/percpu-rwsem.h:49 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1512 dup_mmap kernel/fork.c:471 [inline] dup_mm kernel/fork.c:1329 [inline] copy_mm kernel/fork.c:1385 [inline] copy_process.part.0+0x2bcc/0x7a90 kernel/fork.c:1945 copy_process kernel/fork.c:1738 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2257 __do_sys_clone kernel/fork.c:2364 [inline] __se_sys_clone kernel/fork.c:2358 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2358 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4567da Code: Bad RIP value. RSP: 002b:00007ffe250d80e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffe250d80e0 RCX: 00000000004567da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffe250d8120 R08: 0000000000000001 R09: 000000000149d940 R10: 000000000149dc10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe250d8170 INFO: task syz-executor.2:8286 blocked for more than 144 seconds. Not tainted 5.1.0-rc2-next-20190329 #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D24664 8286 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 include/linux/percpu-rwsem.h:49 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1512 dup_mmap kernel/fork.c:471 [inline] dup_mm kernel/fork.c:1329 [inline] copy_mm kernel/fork.c:1385 [inline] copy_process.part.0+0x2bcc/0x7a90 kernel/fork.c:1945 copy_process kernel/fork.c:1738 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2257 __do_sys_clone kernel/fork.c:2364 [inline] __se_sys_clone kernel/fork.c:2358 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2358 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4567da Code: Bad RIP value. RSP: 002b:00007ffe9d19f7e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffe9d19f7e0 RCX: 00000000004567da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffe9d19f820 R08: 0000000000000001 R09: 0000000002657940 R10: 0000000002657c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe9d19f870 INFO: task udevd:29247 blocked for more than 144 seconds. Not tainted 5.1.0-rc2-next-20190329 #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D27264 29247 3879 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 include/linux/percpu-rwsem.h:49 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1512 dup_mmap kernel/fork.c:471 [inline] dup_mm kernel/fork.c:1329 [inline] copy_mm kernel/fork.c:1385 [inline] copy_process.part.0+0x2bcc/0x7a90 kernel/fork.c:1945 copy_process kernel/fork.c:1738 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2257 __do_sys_clone kernel/fork.c:2364 [inline] __se_sys_clone kernel/fork.c:2358 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2358 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7efccd2d1f46 Code: Bad RIP value. RSP: 002b:00007ffeacf77f50 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffeacf77f50 RCX: 00007efccd2d1f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffeacf77fb0 R08: 000000000000723f R09: 000000000000723f R10: 00007efccdbeea70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeacf77f70 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:29248 blocked for more than 144 seconds. Not tainted 5.1.0-rc2-next-20190329 #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D28176 29248 3879 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 include/linux/percpu-rwsem.h:49 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1512 dup_mmap kernel/fork.c:471 [inline] dup_mm kernel/fork.c:1329 [inline] copy_mm kernel/fork.c:1385 [inline] copy_process.part.0+0x2bcc/0x7a90 kernel/fork.c:1945 copy_process kernel/fork.c:1738 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2257 __do_sys_clone kernel/fork.c:2364 [inline] __se_sys_clone kernel/fork.c:2358 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2358 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7efccd2d1f46 Code: Bad RIP value. RSP: 002b:00007ffeacf77f50 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffeacf77f50 RCX: 00007efccd2d1f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffeacf77fb0 R08: 0000000000007240 R09: 0000000000007240 R10: 00007efccdbeea70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeacf77f70 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:25479 blocked for more than 145 seconds. Not tainted 5.1.0-rc2-next-20190329 #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D27904 25479 3879 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 include/linux/percpu-rwsem.h:49 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1512 dup_mmap kernel/fork.c:471 [inline] dup_mm kernel/fork.c:1329 [inline] copy_mm kernel/fork.c:1385 [inline] copy_process.part.0+0x2bcc/0x7a90 kernel/fork.c:1945 copy_process kernel/fork.c:1738 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2257 __do_sys_clone kernel/fork.c:2364 [inline] __se_sys_clone kernel/fork.c:2358 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2358 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7efccd2d1f46 Code: Bad RIP value. RSP: 002b:00007ffeacf77f50 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffeacf77f50 RCX: 00007efccd2d1f46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffeacf77fb0 R08: 0000000000006387 R09: 0000000000006387 R10: 00007efccdbeea70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeacf77f70 R14: 0000000000000005 R15: 0000000000000005 INFO: task syz-executor.5:32254 blocked for more than 145 seconds. Not tainted 5.1.0-rc2-next-20190329 #14 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D27144 32254 17127 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+0x45a/0x7c0 kernel/events/uprobes.c:1099 uprobe_register+0x28/0x30 kernel/events/uprobes.c:1146 probe_event_enable+0x474/0xc40 kernel/trace/trace_uprobe.c:929 trace_uprobe_register+0x7a/0x970 kernel/trace/trace_uprobe.c:1205 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+0x16e/0x210 kernel/trace/trace_event_perf.c:327 perf_uprobe_event_init+0x106/0x1a0 kernel/events/core.c:8744 perf_try_init_event+0x137/0x3f0 kernel/events/core.c:10013 perf_init_event kernel/events/core.c:10053 [inline] perf_event_alloc.part.0+0x1f2f/0x3200 kernel/events/core.c:10330 perf_event_alloc kernel/events/core.c:10700 [inline] __do_sys_perf_event_open+0x830/0x24e0 kernel/events/core.c:10801 __se_sys_perf_event_open kernel/events/core.c:10690 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10690 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458209 Code: Bad RIP value. RSP: 002b:00007f4eff7b2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000458209 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f4eff7b36d4 R13: 00000000004c483e R14: 00000000004d83b0 R15: 00000000ffffffff INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 1043 Comm: khungtaskd Not tainted 5.1.0-rc2-next-20190329 #14 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+0x9b7/0xec0 kernel/hung_task.c:288 kthread+0x357/0x430 kernel/kthread.c:254 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 1 to CPUs 0: