[ 3690.790515] run fstests btrfs/161 at 2022-09-06 21:52:45
[ 3691.295966] BTRFS info (device dm-0): using crc32c (crc32c-intel) checksum algorithm
[ 3691.295974] BTRFS info (device dm-0): using free space tree
[ 3692.039810] BTRFS: device fsid 6cb79a00-9e8d-4c81-8dc6-cf4ef5f1884b devid 1 transid 6 /dev/mapper/vg0-lv7 scanned by mkfs.btrfs (468546)
[ 3692.082945] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 3692.082956] BTRFS info (device dm-7): using free space tree
[ 3692.094893] BTRFS info (device dm-7): checking UUID tree
[ 3692.331200] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 3692.331207] BTRFS info (device dm-7): using free space tree

[ 3692.396173] =============================
[ 3692.396182] WARNING: suspicious RCU usage
[ 3692.396184] 6.0.0-rc4+ #827 Not tainted
[ 3692.396186] -----------------------------
[ 3692.396188] fs/btrfs/volumes.c:1004 suspicious rcu_dereference_check() usage!
[ 3692.396190] 
               other info that might help us debug this:

[ 3692.396192] 
               rcu_scheduler_active = 2, debug_locks = 1
[ 3692.396194] 5 locks held by btrfs/468604:
[ 3692.396196]  #0: ffff9d605370b0e0 (&type->s_umount_key#34){++++}-{3:3}, at: btrfs_init_new_device+0x481/0x1900
[ 3692.396211]  #1: ffffffffa1eb4b28 (uuid_mutex){+.+.}-{3:3}, at: btrfs_init_new_device+0x48f/0x1900
[ 3692.396220]  #2: ffff9d605370b650 (sb_internal){.+.+}-{0:0}, at: btrfs_init_new_device+0x2bc/0x1900
[ 3692.396229]  #3: ffff9d60427fe338 (btrfs_trans_num_writers){++++}-{0:0}, at: join_transaction+0x99/0x5a0
[ 3692.396238]  #4: ffff9d60427fe360 (btrfs_trans_num_extwriters){++++}-{0:0}, at: join_transaction+0x99/0x5a0
[ 3692.396246] 
               stack backtrace:
[ 3692.396248] CPU: 1 PID: 468604 Comm: btrfs Not tainted 6.0.0-rc4+ #827
[ 3692.396250] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014
[ 3692.396256] Call Trace:
[ 3692.396258]  
[ 3692.396260]  dump_stack_lvl+0x56/0x73
[ 3692.396266]  clone_fs_devices+0x164/0x1c0
[ 3692.396274]  btrfs_init_new_device+0xd09/0x1900
[ 3692.396287]  ? lock_release+0x137/0x2d0
[ 3692.396304]  ? btrfs_ioctl+0x19a6/0x2c90
[ 3692.396308]  btrfs_ioctl+0x19a6/0x2c90
[ 3692.396311]  ? lock_is_held_type+0xe2/0x140
[ 3692.396317]  ? lock_is_held_type+0xe2/0x140
[ 3692.396324]  ? lock_is_held_type+0xe2/0x140
[ 3692.396329]  ? __x64_sys_ioctl+0x88/0xc0
[ 3692.396332]  __x64_sys_ioctl+0x88/0xc0
[ 3692.396337]  do_syscall_64+0x38/0x90
[ 3692.396342]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 3692.396345] RIP: 0033:0x7ff2cf0f00ab
[ 3692.396349] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 bd 0c 00 f7 d8 64 89 01 48
[ 3692.396351] RSP: 002b:00007fff1d8771b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
[ 3692.396358] RAX: ffffffffffffffda RBX: 0000000001f36c90 RCX: 00007ff2cf0f00ab
[ 3692.396359] RDX: 00007fff1d8771f0 RSI: 000000005000940a RDI: 0000000000000003
[ 3692.396361] RBP: 00007fff1d8771f0 R08: 0000000000000010 R09: 00007ff2cf1bca60
[ 3692.396362] R10: 00007ff2cf002fb8 R11: 0000000000000202 R12: 00007fff1d8783c8
[ 3692.396364] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
[ 3692.396378]  
[ 3692.446977] BTRFS info (device dm-7): relocating block group 567279616 flags system|dup
[ 3692.481990] BTRFS info (device dm-7): relocating block group 22020096 flags system|dup
[ 3692.516112] BTRFS info (device dm-7): disk added /dev/mapper/vg0-lv6
[ 3692.676413] BTRFS info (device dm-6): using crc32c (crc32c-intel) checksum algorithm
[ 3692.676422] BTRFS info (device dm-6): using free space tree
[ 3692.680474] BTRFS info (device dm-6): checking UUID tree