INFO: task syz-executor.4:27742 can't die for more than 143 seconds. syz-executor.4 D28880 27742 27202 0x00004004 Call Trace: context_switch kernel/sched/core.c:3778 [inline] __schedule+0x8e5/0x21e0 kernel/sched/core.c:4527 schedule+0xd0/0x2a0 kernel/sched/core.c:4602 rwsem_down_write_slowpath+0x603/0xc60 kernel/locking/rwsem.c:1235 __down_write kernel/locking/rwsem.c:1389 [inline] down_write+0x137/0x150 kernel/locking/rwsem.c:1532 grab_super+0x59/0x260 fs/super.c:391 sget_fc+0x24c/0x770 fs/super.c:563 ceph_get_tree+0x5ce/0x15f0 fs/ceph/super.c:1076 vfs_get_tree+0x89/0x2f0 fs/super.c:1549 do_new_mount fs/namespace.c:2912 [inline] path_mount+0x1287/0x1e20 fs/namespace.c:3230 do_mount fs/namespace.c:3243 [inline] __do_sys_mount fs/namespace.c:3451 [inline] __se_sys_mount fs/namespace.c:3428 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3428 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d189 Code: Bad RIP value. RSP: 002b:00007f5e7fc96c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000020480 RCX: 000000000045d189 RDX: 0000000020000140 RSI: 00000000200000c0 RDI: 0000000020000040 RBP: 000000000118cf90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffc24a0b81f R14: 00007f5e7fc979c0 R15: 000000000118cf4c Showing all locks held in the system: 1 lock held by khungtaskd/1155: #0: ffffffff89c66c40 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:5825 2 locks held by syz-executor.4/27637: #0: ffff88803dba60e0 (&type->s_umount_key#59/1){+.+.}-{3:3}, at: alloc_super+0x1ba/0xa80 fs/super.c:230 #1: ffff88804d14c090 (&client->mount_mutex){+.+.}-{3:3}, at: ceph_real_mount fs/ceph/super.c:925 [inline] #1: ffff88804d14c090 (&client->mount_mutex){+.+.}-{3:3}, at: ceph_get_tree+0x6d1/0x15f0 fs/ceph/super.c:1094 1 lock held by syz-executor.4/27699: #0: ffff88803dba60e0 (&type->s_umount_key#60){++++}-{3:3}, at: grab_super+0x59/0x260 fs/super.c:391 1 lock held by syz-executor.4/27742: #0: ffff88803dba60e0 (&type->s_umount_key#60){++++}-{3:3}, at: grab_super+0x59/0x260 fs/super.c:391 1 lock held by syz-executor.4/27792: #0: ffff88803dba60e0 (&type->s_umount_key#60){++++}-{3:3}, at: grab_super+0x59/0x260 fs/super.c:391 1 lock held by syz-executor.5/31789: #0: ffff88803dba60e0 (&type->s_umount_key#60){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:694 1 lock held by syz-executor.5/31794: #0: ffff88803dba60e0 (&type->s_umount_key#60){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:694 =============================================