------------[ cut here ]------------
btree trans held srcu lock (delaying memory reclaim) for 15 seconds
WARNING: CPU: 1 PID: 26374 at fs/bcachefs/btree_iter.c:3276 bch2_trans_srcu_unlock+0x50d/0x620
Modules linked in:
CPU: 1 UID: 0 PID: 26374 Comm: bch-copygc/loop Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:bch2_trans_srcu_unlock+0x50d/0x620
Code: 7d 00 49 c1 ef 02 48 b9 c3 f5 28 5c 8f c2 f5 28 4c 89 f8 48 f7 e1 48 c1 ea 02 48 c7 c7 20 b6 d3 8b 48 89 d6 e8 34 24 5a fd 90 <0f> 0b 90 90 e9 a6 fe ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 1c fb ff
RSP: 0018:ffffc90002e3ed38 EFLAGS: 00010246
RAX: a1e4895c6e354100 RBX: 1ffff110214e1809 RCX: ffff888109e20000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff110214e1811 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa1ec R12: ffff88810a70c046
R13: ffff88810a70c088 R14: 1ffff110214e1808 R15: 000000000000018f
FS:  0000000000000000(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555599505c8 CR3: 0000000031c1a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 bch2_trans_begin+0x1b3b/0x2310
 __bch2_move_data_phys+0xb8a/0x1c50
 bch2_evacuate_bucket+0x228/0x3a0
 bch2_copygc+0x3be3/0x4510
 bch2_copygc_thread+0x97a/0xe00
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
