IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready 8021q: adding VLAN 0 to HW filter on device team0 IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready INFO: task syz-executor0:4749 blocked for more than 140 seconds. Not tainted 4.18.0-rc6-next-20180725+ #18 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D25872 4749 4354 0x00000004 Call Trace: context_switch kernel/sched/core.c:2820 [inline] __schedule+0x87c/0x1ed0 kernel/sched/core.c:3468 schedule+0xfb/0x450 kernel/sched/core.c:3512 request_wait_answer+0x4c8/0x920 fs/fuse/dev.c:463 __fuse_request_send+0x12a/0x1d0 fs/fuse/dev.c:483 fuse_request_send+0x62/0xa0 fs/fuse/dev.c:496 fuse_simple_request+0x33d/0x730 fs/fuse/dev.c:554 fuse_do_setattr+0xb03/0x1c90 fs/fuse/dir.c:1682 fuse_setattr+0x244/0x570 fs/fuse/dir.c:1782 notify_change+0xc0c/0x10f0 fs/attr.c:334 chmod_common+0x2a0/0x590 fs/open.c:541 do_fchmodat+0xc3/0x160 fs/open.c:579 __do_sys_chmod fs/open.c:597 [inline] __se_sys_chmod fs/open.c:595 [inline] __x64_sys_chmod+0x5c/0x80 fs/open.c:595 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456a09 Code: 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 <07> 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 RSP: 002b:00007f50b55dfc78 EFLAGS: 00000246 ORIG_RAX: 000000000000005a RAX: ffffffffffffffda RBX: 00007f50b55e06d4 RCX: 0000000000456a09 RDX: 0000000000000000 RSI: 0000000000000150 RDI: 0000000020000140 RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004ca568 R14: 00000000004c1c78 R15: 0000000000000001 INFO: task syz-executor0:4750 blocked for more than 140 seconds. Not tainted 4.18.0-rc6-next-20180725+ #18 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D26224 4750 4354 0x00000004 Call Trace: context_switch kernel/sched/core.c:2820 [inline] __schedule+0x87c/0x1ed0 kernel/sched/core.c:3468 schedule+0xfb/0x450 kernel/sched/core.c:3512 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x362/0x600 kernel/locking/rwsem-xadd.c:286 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0xc3/0x1d0 kernel/locking/rwsem.c:26 inode_lock_shared include/linux/fs.h:748 [inline] lookup_slow+0x49/0x80 fs/namei.c:1687 walk_component+0x94a/0x2630 fs/namei.c:1810 lookup_last fs/namei.c:2273 [inline] path_lookupat.isra.45+0x212/0xc00 fs/namei.c:2318 filename_lookup+0x264/0x510 fs/namei.c:2348 user_path_at_empty+0x40/0x50 fs/namei.c:2608 user_path_at include/linux/namei.h:57 [inline] vfs_statx+0x129/0x210 fs/stat.c:185 vfs_lstat include/linux/fs.h:3132 [inline] __do_sys_newlstat+0x8f/0x110 fs/stat.c:350 __se_sys_newlstat fs/stat.c:344 [inline] __x64_sys_newlstat+0x54/0x80 fs/stat.c:344 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456a09 Code: 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 <07> 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 RSP: 002b:00007f50b55bec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 00007f50b55bf6d4 RCX: 0000000000456a09 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000020000000 RBP: 00000000009301e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d14f8 R14: 00000000004c6d78 R15: 0000000000000002 INFO: task syz-executor0:4751 blocked for more than 140 seconds. Not tainted 4.18.0-rc6-next-20180725+ #18 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D25408 4751 4354 0x00000004 Call Trace: context_switch kernel/sched/core.c:2820 [inline] __schedule+0x87c/0x1ed0 kernel/sched/core.c:3468 schedule+0xfb/0x450 kernel/sched/core.c:3512 __rwsem_down_write_failed_common+0x95d/0x1630 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xaa/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:733 [inline] chmod_common+0x1b1/0x590 fs/open.c:535 do_fchmodat+0xc3/0x160 fs/open.c:579 __do_sys_chmod fs/open.c:597 [inline] __se_sys_chmod fs/open.c:595 [inline] __x64_sys_chmod+0x5c/0x80 fs/open.c:595 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456a09 Code: 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 <07> 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 RSP: 002b:00007f50b559dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000005a RAX: ffffffffffffffda RBX: 00007f50b559e6d4 RCX: 0000000000456a09 RDX: 0000000000000000 RSI: 0000000000000150 RDI: 0000000020000140 RBP: 0000000000930280 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004ca568 R14: 00000000004c1c78 R15: 0000000000000003 INFO: task syz-executor0:4753 blocked for more than 140 seconds. Not tainted 4.18.0-rc6-next-20180725+ #18 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D26224 4753 4354 0x00000004 Call Trace: context_switch kernel/sched/core.c:2820 [inline] __schedule+0x87c/0x1ed0 kernel/sched/core.c:3468 schedule+0xfb/0x450 kernel/sched/core.c:3512 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x362/0x600 kernel/locking/rwsem-xadd.c:286 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0xc3/0x1d0 kernel/locking/rwsem.c:26 inode_lock_shared include/linux/fs.h:748 [inline] lookup_slow+0x49/0x80 fs/namei.c:1687 walk_component+0x94a/0x2630 fs/namei.c:1810 lookup_last fs/namei.c:2273 [inline] path_lookupat.isra.45+0x212/0xc00 fs/namei.c:2318 filename_lookup+0x264/0x510 fs/namei.c:2348 user_path_at_empty+0x40/0x50 fs/namei.c:2608 user_path_at include/linux/namei.h:57 [inline] vfs_statx+0x129/0x210 fs/stat.c:185 vfs_lstat include/linux/fs.h:3132 [inline] __do_sys_newlstat+0x8f/0x110 fs/stat.c:350 __se_sys_newlstat fs/stat.c:344 [inline] __x64_sys_newlstat+0x54/0x80 fs/stat.c:344 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456a09 Code: 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 <07> 48 83 c7 10 0f 10 06 48 83 c6 10 0f 11 07 48 83 c7 10 0f 10 06 RSP: 002b:00007f50b555bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 00007f50b555c6d4 RCX: 0000000000456a09 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000020000000 RBP: 00000000009303c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d14f8 R14: 00000000004c6d78 R15: 0000000000000005 INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 775 Comm: khungtaskd Not tainted 4.18.0-rc6-next-20180725+ #18 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+0x1c9/0x2b4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.3+0x48/0x88 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x151/0x192 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:144 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0xb39/0x10b0 kernel/hung_task.c:265 kthread+0x345/0x410 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:54