------------[ cut here ]------------
lp >= size || lp < 0
WARNING: fs/jfs/jfs_dmap.c:2962 at dbAdjTree+0x454/0x4e0, CPU#0: jfsCommit/121
Modules linked in:
CPU: 0 UID: 0 PID: 121 Comm: jfsCommit Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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 ad e3 66 fe eb 05 e8 a6 e3 66 fe 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 c3 6b 4c 08 cc e8 8d e3 66 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: 0000:ffffc900030f7588 EFLAGS: 00010293
RAX: ffffffff835edbe3 RBX: ffff888109e1e010 RCX: ffff888168b90000
RDX: 0000000000000000 RSI: 0000000000000155 RDI: 0000000000020056
RBP: 0000000000020056 R08: ffffea0004278787 R09: 1ffffd400084f0f0
R10: dffffc0000000000 R11: fffff9400084f0f1 R12: ffff888109e1e018
R13: dffffc0000000000 R14: 0000000000000004 R15: 0000000000000155
FS:  0000000000000000(0000) GS:ffff88818dc90000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc435006000 CR3: 0000000109556000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 dbJoin+0x238/0x300
 dbFreeBits+0x4e1/0xdb0
 dbFree+0x336/0x650
 txFreeMap+0x9e6/0xde0
 xtTruncate+0xd38/0x2f20
 jfs_free_zero_link+0x35b/0x4c0
 jfs_evict_inode+0x363/0x440
 evict+0x61e/0xb10
 jfs_lazycommit+0x43d/0xaa0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
