bcachefs (loop0): /file3 offset 0: data_read_io_err
  u64s 7 type extent 1073741828:24:U32_MAX len 24 ver 0: durability: 1 crc: c_size 24 size 24 offset 0 nonce 0 csum crc32c 0:0  compress none ptr: 0:34:8 gen 0
bcachefs (loop0): /file3 offset 0: data read error: data_read_io_err
bcachefs (loop0): /file3 offset 0: data read error, data_read_io_err
  u64s 7 type extent 1073741828:24:U32_MAX len 24 ver 0: durability: 1 crc: c_size 24 size 24 offset 0 nonce 0 csum crc32c 0:0  compress none ptr: 0:34:8 gen 0
  loop0 io error
------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_iter.c:3462!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 1044 Comm: kworker/u4:8 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events_unbound bch2_rbio_retry
RIP: 0010:__bch2_trans_get+0xce2/0xd80 fs/bcachefs/btree_iter.c:3460
Code: fd e9 81 f4 ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 9b fa ff ff 4c 89 ff e8 19 85 f9 fd e9 8e fa ff ff e8 4f 88 94 fd 90 <0f> 0b 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 45 fd ff ff 4c 89 e7
RSP: 0000:ffffc900024cf460 EFLAGS: 00010293
RAX: ffffffff842b34f1 RBX: ffff888051ffc000 RCX: ffff888035b10000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: 0000000000000004 R08: ffffffff8fc3c937 R09: 1ffffffff1f87926
R10: dffffc0000000000 R11: fffffbfff1f87927 R12: ffff888052b04200
R13: 0000000000000414 R14: dffffc0000000000 R15: ffff88803eef81d8
FS:  0000000000000000(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa6f1207c00 CR3: 000000003f664000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 bch2_rbio_retry+0x1d1/0x19b0 fs/bcachefs/io_read.c:594
 bch2_rbio_done fs/bcachefs/io_read.c:464 [inline]
 bch2_rbio_retry+0xbf4/0x19b0 fs/bcachefs/io_read.c:667
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x439/0x7d0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__bch2_trans_get+0xce2/0xd80 fs/bcachefs/btree_iter.c:3460
Code: fd e9 81 f4 ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 9b fa ff ff 4c 89 ff e8 19 85 f9 fd e9 8e fa ff ff e8 4f 88 94 fd 90 <0f> 0b 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 45 fd ff ff 4c 89 e7
RSP: 0000:ffffc900024cf460 EFLAGS: 00010293
RAX: ffffffff842b34f1 RBX: ffff888051ffc000 RCX: ffff888035b10000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: 0000000000000004 R08: ffffffff8fc3c937 R09: 1ffffffff1f87926
R10: dffffc0000000000 R11: fffffbfff1f87927 R12: ffff888052b04200
R13: 0000000000000414 R14: dffffc0000000000 R15: ffff88803eef81d8
FS:  0000000000000000(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdba0d6e40 CR3: 0000000011666000 CR4: 0000000000352ef0