------------[ cut here ]------------
WARNING: fs/jfs/jfs_dmap.c:2875 at dbAdjTree+0x454/0x4e0, CPU#1: jfsCommit/117
Modules linked in:
CPU: 1 UID: 0 PID: 117 Comm: jfsCommit 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:dbAdjTree+0x454/0x4e0
Code: 5a ff ff ff e8 8d e6 7c fe eb 05 e8 86 e6 7c fe 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 6d e6 7c fe 90 <0f> 0b 90 eb e1 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e1 fb ff ff
RSP: 0018:ffffc900024974e8 EFLAGS: 00010293
RAX: ffffffff834374b3 RBX: ffff888038066010 RCX: ffff88801db59d00
RDX: 0000000000000000 RSI: 0000000000000155 RDI: 0000000000020056
RBP: 0000000000020056 R08: ffffea0000e01987 R09: 1ffffd40001c0330
R10: dffffc0000000000 R11: fffff940001c0331 R12: ffff888038066018
R13: dffffc0000000000 R14: 0000000000000004 R15: 0000000000000155
FS:  0000000000000000(0000) GS:ffff8881a39fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555587a79608 CR3: 00000001067c4000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 dbJoin+0x238/0x300
 dbFreeBits+0x4e1/0xdb0
 dbFree+0x336/0x650
 txFreeMap+0x9e6/0xde0
 xtTruncate+0xcea/0x2e70
 jfs_free_zero_link+0x33a/0x4a0
 jfs_evict_inode+0x363/0x440
 evict+0x504/0x9c0
 jfs_lazycommit+0x43f/0xa90
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>
