[ 7654] -232632232 7654 18146 8742 24 3 0 1000 syz-executor.1 [ 7656] -232716160 7656 18146 8742 24 3 0 1000 syz-executor.1 [ 7657] -232716160 7657 18146 8742 24 3 0 1000 syz-executor.1 [ 7658] -232716160 7658 18146 8742 24 3 0 1000 syz-executor.1 INFO: task kworker/u4:2:32644 blocked for more than 140 seconds. Not tainted 4.14.115+ #64 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 7659] -232716160 7659 18146 8742 24 3 0 1000 syz-executor.1 kworker/u4:2 D26840 32644 2 0x80000000 Workqueue: netns cleanup_net Call Trace: [ 7660] -232716160 7660 18146 8742 24 3 0 1000 syz-executor.1 [ 7661] -232716160 7661 18146 8742 24 3 0 1000 syz-executor.1 schedule+0x92/0x1c0 kernel/sched/core.c:3498 [ 7662] -232716160 7662 18146 8742 24 3 0 1000 syz-executor.1 [ 7663] -232716160 7663 18146 8742 24 3 0 1000 syz-executor.1 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3556 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x559/0x1430 kernel/locking/mutex.c:893 [ 7664] -232632232 7664 18146 8742 24 3 0 1000 syz-executor.1 [ 7665] -232716160 7665 18146 8742 24 3 0 1000 syz-executor.1 cleanup_net+0x136/0x860 net/core/net_namespace.c:450 [ 7666] -232716160 7666 18146 8742 24 3 0 1000 syz-executor.1 process_one_work+0x7c6/0x1510 kernel/workqueue.c:2134 [ 7667] -232623805 7667 18146 8742 24 3 0 1000 syz-executor.1 [ 7668] -232716160 7668 18146 8742 24 3 0 1000 syz-executor.1 worker_thread+0x5d7/0x1080 kernel/workqueue.c:2271 kthread+0x310/0x420 kernel/kthread.c:232 [ 7672] -232716160 7672 18146 8742 24 3 0 1000 syz-executor.1 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 INFO: task syz-executor.1:7650 blocked for more than 140 seconds. [ 7673] -232716160 7673 18146 8742 24 3 0 1000 syz-executor.1 Not tainted 4.14.115+ #64 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 7674] -232609949 7674 18146 8742 24 3 0 1000 syz-executor.1 [ 7676] -232716160 7676 18146 8742 24 3 0 1000 syz-executor.1 syz-executor.1 D29288 7650 7618 0x00000000 Call Trace: [ 7677] -232716160 7677 18146 8742 24 3 0 1000 syz-executor.1 schedule+0x92/0x1c0 kernel/sched/core.c:3498 [ 7678] -232716160 7678 18146 8742 24 3 0 1000 syz-executor.1 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:276 [inline] rwsem_down_read_failed+0x21f/0x3c0 kernel/locking/rwsem-xadd.c:293 [ 7679] -232716160 7679 18146 8742 24 3 0 1000 syz-executor.1 [ 7680] -232716160 7680 18146 8742 24 3 0 1000 syz-executor.1 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 [ 7681] -232716160 7681 18146 8742 24 3 0 1000 syz-executor.1 __down_read arch/x86/include/asm/rwsem.h:66 [inline] down_read+0x45/0xa0 kernel/locking/rwsem.c:26 inode_lock_shared include/linux/fs.h:725 [inline] lookup_slow+0x140/0x440 fs/namei.c:1688 [ 7682] -232716160 7682 18146 8742 24 3 0 1000 syz-executor.1 [ 7684] -232716160 7684 18146 8742 24 3 0 1000 syz-executor.1 walk_component+0x6d0/0xbf0 fs/namei.c:1839 [ 7685] -232716160 7685 18146 8742 24 3 0 1000 syz-executor.1 [ 7686] -232716160 7686 18146 8742 24 3 0 1000 syz-executor.1 lookup_last fs/namei.c:2307 [inline] path_lookupat.isra.0+0x1ce/0x7e0 fs/namei.c:2357 [ 7688] -232646152 7688 18146 8742 24 3 0 1000 syz-executor.1 [ 7689] -232716160 7689 18146 8742 24 3 0 1000 syz-executor.1 [ 7690] -232716160 7690 18146 8742 24 3 0 1000 syz-executor.1 filename_lookup+0x1a1/0x3b0 fs/namei.c:2391 [ 7691] -232716160 7691 18146 8742 24 3 0 1000 syz-executor.1 [ 7692] -232716160 7692 18146 8742 24 3 0 1000 syz-executor.1 user_path_at include/linux/namei.h:57 [inline] SYSC_faccessat fs/open.c:394 [inline] SyS_faccessat+0x214/0x670 fs/open.c:362 [ 7693] -232632232 7693 18146 8742 24 3 0 1000 syz-executor.1 [ 7694] -232716160 7694 18146 8742 24 3 0 1000 syz-executor.1 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 [ 7695] -232716160 7695 18146 8742 24 3 0 1000 syz-executor.1 INFO: task syz-executor.1:7708 blocked for more than 140 seconds. [ 7696] -232716160 7696 18146 8742 24 3 0 1000 syz-executor.1 Not tainted 4.14.115+ #64 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 7697] -232716160 7697 18146 8742 24 3 0 1000 syz-executor.1 syz-executor.1 D28752 7708 7593 0x00000000 [ 7698] -232716160 7698 18146 8742 24 3 0 1000 syz-executor.1 Call Trace: [ 7699] -232716160 7699 18146 8742 24 3 0 1000 syz-executor.1 schedule+0x92/0x1c0 kernel/sched/core.c:3498 [ 7700] -232716160 7700 18146 8742 24 3 0 1000 syz-executor.1 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:276 [inline] rwsem_down_read_failed+0x21f/0x3c0 kernel/locking/rwsem-xadd.c:293 [ 7701] -232716160 7701 18146 8742 24 3 0 1000 syz-executor.1 [ 7702] -232716160 7702 18146 8742 24 3 0 1000 syz-executor.1 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:66 [inline] down_read+0x45/0xa0 kernel/locking/rwsem.c:26 [ 7705] -232716160 7705 18146 8742 24 3 0 1000 syz-executor.1 inode_lock_shared include/linux/fs.h:725 [inline] do_last fs/namei.c:3360 [inline] path_openat+0x14aa/0x2b70 fs/namei.c:3597 [ 7706] -232716160 7706 18146 8742 24 3 0 1000 syz-executor.1 [ 7707] -232716160 7707 18146 8742 24 3 0 1000 syz-executor.1 do_filp_open+0x1a1/0x280 fs/namei.c:3631 [ 7708] -232609949 7708 18146 8742 24 3 0 1000 syz-executor.1