bcachefs (loop9): done starting filesystem
------------[ cut here ]------------
WARNING: CPU: 1 PID: 16229 at fs/bcachefs/fs-io.c:361 __bch2_truncate_folio+0x179c/0x1a30
Modules linked in:
CPU: 1 UID: 0 PID: 16229 Comm: syz.9.1492 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_truncate_folio+0x179c/0x1a30
Code: 5f 5d c3 cc cc cc cc cc e8 11 d4 7f fd 48 c7 c7 63 93 a3 8d e8 85 61 e9 ff 89 05 2f 34 86 15 e9 49 ea ff ff e8 f5 d3 7f fd 90 <0f> 0b 90 e9 26 f9 ff ff e8 c7 ec 39 07 e8 e2 d3 7f fd be 00 10 00
RSP: 0018:ffffc900034b7580 EFLAGS: 00010283
RAX: ffffffff843fda1b RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc90021be2000 RSI: 00000000000017b5 RDI: 00000000000017b6
RBP: ffffc900034b7750 R08: ffffea0004bf7507 R09: 1ffffd400097eea0
R10: dffffc0000000000 R11: fffff9400097eea1 R12: 1ffff110223c60fd
R13: dffffc0000000000 R14: ffff888111e307e8 R15: 0000000000000000
FS:  00007fa6d95ee6c0(0000) GS:ffff8881a3c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f1f3ff8 CR3: 000000003c3d2000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 bchfs_fpunch+0x10f/0x520
 bch2_fallocate_dispatch+0x2bc/0x410
 vfs_fallocate+0x669/0x7e0
 file_ioctl+0x611/0x780
 do_vfs_ioctl+0xb33/0x1430
 __se_sys_ioctl+0x82/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa6db38ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fa6d95ee038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa6db5c5fa0 RCX: 00007fa6db38ebe9
RDX: 00002000000004c0 RSI: 0000000040305829 RDI: 0000000000000004
RBP: 00007fa6db411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa6db5c6038 R14: 00007fa6db5c5fa0 R15: 00007ffd1aedc168
 </TASK>
