------------[ cut here ]------------
btree trans held srcu lock (delaying memory reclaim) for 20 seconds
WARNING: fs/bcachefs/btree_iter.c:3276 at bch2_trans_put+0xf90/0x1220, CPU#1: syz.9.2843/14476
Modules linked in:
CPU: 1 UID: 0 PID: 14476 Comm: syz.9.2843 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_put+0xf90/0x1220
Code: 2b 33 49 c1 ee 02 48 b9 c3 f5 28 5c 8f c2 f5 28 4c 89 f0 48 f7 e1 48 c1 ea 02 48 c7 c7 a0 af f3 8b 48 89 d6 e8 91 33 58 fd 90 <0f> 0b 90 90 e9 98 f7 ff ff e8 12 a3 94 fd 90 0f 0b 90 e9 de f7 ff
RSP: 0018:ffffc900032c6f00 EFLAGS: 00010246
RAX: 99314cd1cf2d0c00 RBX: ffff8881221f0088 RCX: 0000000000080000
RDX: ffffc90020c80000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900032c7070 R08: ffff888136624253 R09: 1ffff11026cc484a
R10: dffffc0000000000 R11: ffffed1026cc484b R12: 0000000100002670
R13: 1ffff1102443e011 R14: 0000000000000208 R15: 1ffff1102443e009
FS:  00007f9a30b8c6c0(0000) GS:ffff8881a39f1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005641b4718cf0 CR3: 0000000122108000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 bch2_btree_root_read+0x6b6/0x760
 read_btree_roots+0x2c6/0x840
 bch2_fs_recovery+0x261f/0x3a50
 bch2_fs_start+0xaaf/0xda0
 bch2_fs_get_tree+0xb39/0x1520
 vfs_get_tree+0x92/0x2b0
 do_new_mount+0x302/0xa10
 __se_sys_mount+0x313/0x410
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9a2fd9038a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9a30b8be68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9a30b8bef0 RCX: 00007f9a2fd9038a
RDX: 00002000000000c0 RSI: 0000200000000100 RDI: 00007f9a30b8beb0
RBP: 00002000000000c0 R08: 00007f9a30b8bef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000100
R13: 00007f9a30b8beb0 R14: 0000000000011876 R15: 0000200000000400
 </TASK>
