BUG: Dentry ffff88811a795dd0{i=4,n=.incomplete} still in use (1) [unmount of tmpfs tmpfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check fs/dcache.c:1607 [inline] WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check.cold+0xce/0x137 fs/dcache.c:1597 Modules linked in: CPU: 1 PID: 421 Comm: syz-executor879 Not tainted 5.10.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check fs/dcache.c:1616 [inline] RIP: 0010:umount_check.cold+0xce/0x137 fs/dcache.c:1597 Code: 48 c1 e0 2a 48 c1 ea 03 80 3c 02 00 75 73 49 8b 54 24 40 41 55 4d 89 f1 41 89 d8 48 89 f1 48 c7 c7 40 31 a9 84 e8 32 16 ff ff <0f> 0b 58 e9 5d e7 93 fd 48 89 75 d8 e8 c8 00 88 fd 48 8b 75 d8 e9 RSP: 0018:ffffc9000059fca8 EFLAGS: 00010286 RAX: 000000000000005a RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000003 RSI: ffffffff84c02020 RDI: fffff520000b3f88 RBP: ffffc9000059fcd8 R08: 000000000000005a R09: ffff8881f7353067 R10: ffffed103ee6a60c R11: 6e6544203a475542 R12: ffff88810d2947a0 R13: ffff88810c26b3f8 R14: ffffffff84a74520 R15: ffff88811a795e28 FS: 0000555555ea9300(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555eb2628 CR3: 000000010bf7e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x115/0x3a0 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x74/0x300 fs/dcache.c:1639 generic_shutdown_super+0x61/0x330 fs/super.c:447 kill_anon_super fs/super.c:1108 [inline] kill_litter_super+0x63/0x90 fs/super.c:1117 deactivate_locked_super+0x8b/0x130 fs/super.c:335 deactivate_super+0x71/0x80 fs/super.c:366 cleanup_mnt+0x33a/0x4e0 fs/namespace.c:1118 __cleanup_mnt+0xd/0x10 fs/namespace.c:1125 task_work_run+0xc2/0x140 kernel/task_work.c:154 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0xd9/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x27/0x160 kernel/entry/common.c:266 do_syscall_64+0x3f/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd5aa0100d7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc427810b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd5aa0100d7 RDX: 00007ffc42781177 RSI: 000000000000000a RDI: 00007ffc42781170 RBP: 00007ffc42781170 R08: 00000000ffffffff R09: 00007ffc42780f50 R10: 0000555555eaa683 R11: 0000000000000206 R12: 00007ffc427821e0 R13: 0000555555eaa5f0 R14: 00007ffc427810e0 R15: 0000000000000001 ---[ end trace f9009c143491056d ]--- BUG: Dentry ffff88811a793880{i=3,n=.index} still in use (1) [unmount of tmpfs tmpfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check fs/dcache.c:1607 [inline] WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check.cold+0xce/0x137 fs/dcache.c:1597 Modules linked in: CPU: 1 PID: 421 Comm: syz-executor879 Tainted: G W 5.10.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check fs/dcache.c:1616 [inline] RIP: 0010:umount_check.cold+0xce/0x137 fs/dcache.c:1597 Code: 48 c1 e0 2a 48 c1 ea 03 80 3c 02 00 75 73 49 8b 54 24 40 41 55 4d 89 f1 41 89 d8 48 89 f1 48 c7 c7 40 31 a9 84 e8 32 16 ff ff <0f> 0b 58 e9 5d e7 93 fd 48 89 75 d8 e8 c8 00 88 fd 48 8b 75 d8 e9 RSP: 0018:ffffc9000059fca8 EFLAGS: 00010286 RAX: 0000000000000055 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000003 RSI: ffffffff84c02020 RDI: fffff520000b3f88 RBP: ffffc9000059fcd8 R08: 0000000000000055 R09: ffff8881f7353067 R10: ffffed103ee6a60c R11: 0000000000000001 R12: ffff88810d2959c0 R13: ffff88810c26b3f8 R14: ffffffff84a74520 R15: ffff88811a7938d8 FS: 0000555555ea9300(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555eb2628 CR3: 000000010bf7e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x115/0x3a0 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x74/0x300 fs/dcache.c:1639 generic_shutdown_super+0x61/0x330 fs/super.c:447 kill_anon_super fs/super.c:1108 [inline] kill_litter_super+0x63/0x90 fs/super.c:1117 deactivate_locked_super+0x8b/0x130 fs/super.c:335 deactivate_super+0x71/0x80 fs/super.c:366 cleanup_mnt+0x33a/0x4e0 fs/namespace.c:1118 __cleanup_mnt+0xd/0x10 fs/namespace.c:1125 task_work_run+0xc2/0x140 kernel/task_work.c:154 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0xd9/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x27/0x160 kernel/entry/common.c:266 do_syscall_64+0x3f/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd5aa0100d7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc427810b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd5aa0100d7 RDX: 00007ffc42781177 RSI: 000000000000000a RDI: 00007ffc42781170 RBP: 00007ffc42781170 R08: 00000000ffffffff R09: 00007ffc42780f50 R10: 0000555555eaa683 R11: 0000000000000206 R12: 00007ffc427821e0 R13: 0000555555eaa5f0 R14: 00007ffc427810e0 R15: 0000000000000001 ---[ end trace f9009c143491056e ]--- BUG: Dentry ffff88811a795dd0{i=4,n=.incomplete} still in use (1) [unmount of tmpfs tmpfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check fs/dcache.c:1607 [inline] WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check.cold+0xce/0x137 fs/dcache.c:1597 Modules linked in: CPU: 1 PID: 421 Comm: syz-executor879 Tainted: G W 5.10.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check fs/dcache.c:1616 [inline] RIP: 0010:umount_check.cold+0xce/0x137 fs/dcache.c:1597 Code: 48 c1 e0 2a 48 c1 ea 03 80 3c 02 00 75 73 49 8b 54 24 40 41 55 4d 89 f1 41 89 d8 48 89 f1 48 c7 c7 40 31 a9 84 e8 32 16 ff ff <0f> 0b 58 e9 5d e7 93 fd 48 89 75 d8 e8 c8 00 88 fd 48 8b 75 d8 e9 RSP: 0018:ffffc9000059fca8 EFLAGS: 00010286 RAX: 000000000000005a RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000004 RSI: ffffffff84c02020 RDI: fffff520000b3f88 RBP: ffffc9000059fcd8 R08: 000000000000005a R09: ffff8881f7353067 R10: ffffed103ee6a60c R11: 6e6544203a475542 R12: ffff88810d2947a0 R13: ffff88810c26b3f8 R14: ffffffff84a74520 R15: ffff88811a795e28 FS: 0000555555ea9300(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555eb2628 CR3: 000000010bf7e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x115/0x3a0 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x74/0x300 fs/dcache.c:1639 generic_shutdown_super+0x61/0x330 fs/super.c:447 kill_anon_super fs/super.c:1108 [inline] kill_litter_super+0x63/0x90 fs/super.c:1117 deactivate_locked_super+0x8b/0x130 fs/super.c:335 deactivate_super+0x71/0x80 fs/super.c:366 cleanup_mnt+0x33a/0x4e0 fs/namespace.c:1118 __cleanup_mnt+0xd/0x10 fs/namespace.c:1125 task_work_run+0xc2/0x140 kernel/task_work.c:154 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0xd9/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x27/0x160 kernel/entry/common.c:266 do_syscall_64+0x3f/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd5aa0100d7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc427810b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd5aa0100d7 RDX: 00007ffc42781177 RSI: 000000000000000a RDI: 00007ffc42781170 RBP: 00007ffc42781170 R08: 00000000ffffffff R09: 00007ffc42780f50 R10: 0000555555eaa683 R11: 0000000000000206 R12: 00007ffc427821e0 R13: 0000555555eaa5f0 R14: 00007ffc427810e0 R15: 0000000000000001 ---[ end trace f9009c143491056f ]--- BUG: Dentry ffff88811a793880{i=3,n=.index} still in use (1) [unmount of tmpfs tmpfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check fs/dcache.c:1607 [inline] WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check.cold+0xce/0x137 fs/dcache.c:1597 Modules linked in: CPU: 1 PID: 421 Comm: syz-executor879 Tainted: G W 5.10.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check fs/dcache.c:1616 [inline] RIP: 0010:umount_check.cold+0xce/0x137 fs/dcache.c:1597 Code: 48 c1 e0 2a 48 c1 ea 03 80 3c 02 00 75 73 49 8b 54 24 40 41 55 4d 89 f1 41 89 d8 48 89 f1 48 c7 c7 40 31 a9 84 e8 32 16 ff ff <0f> 0b 58 e9 5d e7 93 fd 48 89 75 d8 e8 c8 00 88 fd 48 8b 75 d8 e9 RSP: 0018:ffffc9000059fca8 EFLAGS: 00010286 RAX: 0000000000000055 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000004 RSI: 0000000000000004 RDI: fffff520000b3f88 RBP: ffffc9000059fcd8 R08: 0000000000000055 R09: 0000000000000003 R10: fffff520000b3f2e R11: 6e61656c635f5f20 R12: ffff88810d2959c0 R13: ffff88810c26b3f8 R14: ffffffff84a74520 R15: ffff88811a7938d8 FS: 0000555555ea9300(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555eb2628 CR3: 000000010bf7e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x115/0x3a0 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x74/0x300 fs/dcache.c:1639 generic_shutdown_super+0x61/0x330 fs/super.c:447 kill_anon_super fs/super.c:1108 [inline] kill_litter_super+0x63/0x90 fs/super.c:1117 deactivate_locked_super+0x8b/0x130 fs/super.c:335 deactivate_super+0x71/0x80 fs/super.c:366 cleanup_mnt+0x33a/0x4e0 fs/namespace.c:1118 __cleanup_mnt+0xd/0x10 fs/namespace.c:1125 task_work_run+0xc2/0x140 kernel/task_work.c:154 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0xd9/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x27/0x160 kernel/entry/common.c:266 do_syscall_64+0x3f/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd5aa0100d7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc427810b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd5aa0100d7 RDX: 00007ffc42781177 RSI: 000000000000000a RDI: 00007ffc42781170 RBP: 00007ffc42781170 R08: 00000000ffffffff R09: 00007ffc42780f50 R10: 0000555555eaa683 R11: 0000000000000206 R12: 00007ffc427821e0 R13: 0000555555eaa5f0 R14: 00007ffc427810e0 R15: 0000000000000001 ---[ end trace f9009c1434910571 ]--- VFS: Busy inodes after unmount of tmpfs. Self-destruct in 5 seconds. Have a nice day... BUG: Dentry ffff88811a795110{i=4,n=.incomplete} still in use (1) [unmount of tmpfs tmpfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check fs/dcache.c:1607 [inline] WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check.cold+0xce/0x137 fs/dcache.c:1597 Modules linked in: CPU: 1 PID: 421 Comm: syz-executor879 Tainted: G W 5.10.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check fs/dcache.c:1616 [inline] RIP: 0010:umount_check.cold+0xce/0x137 fs/dcache.c:1597 Code: 48 c1 e0 2a 48 c1 ea 03 80 3c 02 00 75 73 49 8b 54 24 40 41 55 4d 89 f1 41 89 d8 48 89 f1 48 c7 c7 40 31 a9 84 e8 32 16 ff ff <0f> 0b 58 e9 5d e7 93 fd 48 89 75 d8 e8 c8 00 88 fd 48 8b 75 d8 e9 RSP: 0018:ffffc9000059fca8 EFLAGS: 00010286 RAX: 000000000000005a RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000004 RDI: fffff520000b3f88 RBP: ffffc9000059fcd8 R08: 000000000000005a R09: 0000000000000003 R10: fffff520000b3f2e R11: 6e6544203a475542 R12: ffff88810d297320 R13: ffff88810b3533f8 R14: ffffffff84a74520 R15: ffff88811a795168 FS: 0000555555ea9300(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555eb2628 CR3: 000000010bf7e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x115/0x3a0 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x74/0x300 fs/dcache.c:1639 generic_shutdown_super+0x61/0x330 fs/super.c:447 kill_anon_super fs/super.c:1108 [inline] kill_litter_super+0x63/0x90 fs/super.c:1117 deactivate_locked_super+0x8b/0x130 fs/super.c:335 deactivate_super+0x71/0x80 fs/super.c:366 cleanup_mnt+0x33a/0x4e0 fs/namespace.c:1118 __cleanup_mnt+0xd/0x10 fs/namespace.c:1125 task_work_run+0xc2/0x140 kernel/task_work.c:154 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0xd9/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x27/0x160 kernel/entry/common.c:266 do_syscall_64+0x3f/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd5aa0100d7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc427810b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd5aa0100d7 RDX: 00007ffc42781177 RSI: 000000000000000a RDI: 00007ffc42781170 RBP: 00007ffc42781170 R08: 00000000ffffffff R09: 00007ffc42780f50 R10: 0000555555eaa683 R11: 0000000000000206 R12: 00007ffc427821e0 R13: 0000555555eaa5f0 R14: 00007ffc427810e0 R15: 0000000000000002 ---[ end trace f9009c143491057f ]--- BUG: Dentry ffff88811a795330{i=3,n=.index} still in use (1) [unmount of tmpfs tmpfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check fs/dcache.c:1607 [inline] WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check.cold+0xce/0x137 fs/dcache.c:1597 Modules linked in: CPU: 1 PID: 421 Comm: syz-executor879 Tainted: G W 5.10.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check fs/dcache.c:1616 [inline] RIP: 0010:umount_check.cold+0xce/0x137 fs/dcache.c:1597 Code: 48 c1 e0 2a 48 c1 ea 03 80 3c 02 00 75 73 49 8b 54 24 40 41 55 4d 89 f1 41 89 d8 48 89 f1 48 c7 c7 40 31 a9 84 e8 32 16 ff ff <0f> 0b 58 e9 5d e7 93 fd 48 89 75 d8 e8 c8 00 88 fd 48 8b 75 d8 e9 RSP: 0018:ffffc9000059fca8 EFLAGS: 00010286 RAX: 0000000000000055 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000004 RDI: fffff520000b3f88 RBP: ffffc9000059fcd8 R08: 0000000000000055 R09: 0000000000000003 R10: fffff520000b3f2e R11: 3a474e494e524157 R12: ffff88810d295d60 R13: ffff88810b3533f8 R14: ffffffff84a74520 R15: ffff88811a795388 FS: 0000555555ea9300(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555eb2628 CR3: 000000010bf7e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x115/0x3a0 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x74/0x300 fs/dcache.c:1639 generic_shutdown_super+0x61/0x330 fs/super.c:447 kill_anon_super fs/super.c:1108 [inline] kill_litter_super+0x63/0x90 fs/super.c:1117 deactivate_locked_super+0x8b/0x130 fs/super.c:335 deactivate_super+0x71/0x80 fs/super.c:366 cleanup_mnt+0x33a/0x4e0 fs/namespace.c:1118 __cleanup_mnt+0xd/0x10 fs/namespace.c:1125 task_work_run+0xc2/0x140 kernel/task_work.c:154 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0xd9/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x27/0x160 kernel/entry/common.c:266 do_syscall_64+0x3f/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd5aa0100d7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc427810b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd5aa0100d7 RDX: 00007ffc42781177 RSI: 000000000000000a RDI: 00007ffc42781170 RBP: 00007ffc42781170 R08: 00000000ffffffff R09: 00007ffc42780f50 R10: 0000555555eaa683 R11: 0000000000000206 R12: 00007ffc427821e0 R13: 0000555555eaa5f0 R14: 00007ffc427810e0 R15: 0000000000000002 ---[ end trace f9009c1434910581 ]--- BUG: Dentry ffff88811a795110{i=4,n=.incomplete} still in use (1) [unmount of tmpfs tmpfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check fs/dcache.c:1607 [inline] WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check.cold+0xce/0x137 fs/dcache.c:1597 Modules linked in: CPU: 1 PID: 421 Comm: syz-executor879 Tainted: G W 5.10.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check fs/dcache.c:1616 [inline] RIP: 0010:umount_check.cold+0xce/0x137 fs/dcache.c:1597 Code: 48 c1 e0 2a 48 c1 ea 03 80 3c 02 00 75 73 49 8b 54 24 40 41 55 4d 89 f1 41 89 d8 48 89 f1 48 c7 c7 40 31 a9 84 e8 32 16 ff ff <0f> 0b 58 e9 5d e7 93 fd 48 89 75 d8 e8 c8 00 88 fd 48 8b 75 d8 e9 RSP: 0018:ffffc9000059fca8 EFLAGS: 00010286 RAX: 000000000000005a RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000004 RSI: 0000000000000004 RDI: fffff520000b3f88 RBP: ffffc9000059fcd8 R08: 000000000000005a R09: 0000000000000003 R10: fffff520000b3f2e R11: 6e6544203a475542 R12: ffff88810d297320 R13: ffff88810b3533f8 R14: ffffffff84a74520 R15: ffff88811a795168 FS: 0000555555ea9300(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd5aa083290 CR3: 000000010bf7e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x115/0x3a0 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x74/0x300 fs/dcache.c:1639 generic_shutdown_super+0x61/0x330 fs/super.c:447 kill_anon_super fs/super.c:1108 [inline] kill_litter_super+0x63/0x90 fs/super.c:1117 deactivate_locked_super+0x8b/0x130 fs/super.c:335 deactivate_super+0x71/0x80 fs/super.c:366 cleanup_mnt+0x33a/0x4e0 fs/namespace.c:1118 __cleanup_mnt+0xd/0x10 fs/namespace.c:1125 task_work_run+0xc2/0x140 kernel/task_work.c:154 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0xd9/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x27/0x160 kernel/entry/common.c:266 do_syscall_64+0x3f/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd5aa0100d7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc427810b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd5aa0100d7 RDX: 00007ffc42781177 RSI: 000000000000000a RDI: 00007ffc42781170 RBP: 00007ffc42781170 R08: 00000000ffffffff R09: 00007ffc42780f50 R10: 0000555555eaa683 R11: 0000000000000206 R12: 00007ffc427821e0 R13: 0000555555eaa5f0 R14: 00007ffc427810e0 R15: 0000000000000002 ---[ end trace f9009c1434910583 ]--- BUG: Dentry ffff88811a795330{i=3,n=.index} still in use (1) [unmount of tmpfs tmpfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check fs/dcache.c:1607 [inline] WARNING: CPU: 1 PID: 421 at fs/dcache.c:1616 umount_check.cold+0xce/0x137 fs/dcache.c:1597 Modules linked in: CPU: 1 PID: 421 Comm: syz-executor879 Tainted: G W 5.10.81-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check fs/dcache.c:1616 [inline] RIP: 0010:umount_check.cold+0xce/0x137 fs/dcache.c:1597 Code: 48 c1 e0 2a 48 c1 ea 03 80 3c 02 00 75 73 49 8b 54 24 40 41 55 4d 89 f1 41 89 d8 48 89 f1 48 c7 c7 40 31 a9 84 e8 32 16 ff ff <0f> 0b 58 e9 5d e7 93 fd 48 89 75 d8 e8 c8 00 88 fd 48 8b 75 d8 e9 RSP: 0018:ffffc9000059fca8 EFLAGS: 00010286 RAX: 0000000000000055 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000004 RSI: 0000000000000008 RDI: fffff520000b3f88 RBP: ffffc9000059fcd8 R08: 0000000000000055 R09: ffffc9000059f8cf R10: fffff520000b3f19 R11: 0000000000000001 R12: ffff88810d295d60 R13: ffff88810b3533f8 R14: ffffffff84a74520 R15: ffff88811a795388 FS: 0000555555ea9300(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd5aa083290 CR3: 000000010bf7e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x115/0x3a0 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x74/0x300 fs/dcache.c:1639 generic_shutdown_super+0x61/0x330 fs/super.c:447 kill_anon_super fs/super.c:1108 [inline] kill_litter_super+0x63/0x90 fs/super.c:1117 deactivate_locked_super+0x8b/0x130 fs/super.c:335 deactivate_super+0x71/0x80 fs/super.c:366 cleanup_mnt+0x33a/0x4e0 fs/namespace.c:1118 __cleanup_mnt+0xd/0x10 fs/namespace.c:1125 task_work_run+0xc2/0x140 kernel/task_work.c:154 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0xd9/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x27/0x160 kernel/entry/common.c:266 do_syscall_64+0x3f/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd5aa0100d7 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc427810b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd5aa0100d7 RDX: 00007ffc42781177 RSI: 000000000000000a RDI: 00007ffc42781170 RBP: 00007ffc42781170 R08: 00000000ffffffff R09: 00007ffc42780f50 R10: 0000555555eaa683 R11: 0000000000000206 R12: 00007ffc427821e0 R13: 0000555555eaa5f0 R14: 00007ffc427810e0 R15: 0000000000000002 ---[ end trace f9009c1434910584 ]--- VFS: Busy inodes after unmount of tmpfs. Self-destruct in 5 seconds. Have a nice day...