ERROR: (device loop7): diAllocBit: iag inconsistent
ialloc: diAlloc returned -5!
BUG at fs/jfs/jfs_dmap.c:3021 assert(nb <= DBWORD)
kernel BUG at fs/jfs/jfs_dmap.c:3021!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 9277 Comm: syz.7.310 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:dbFindBits+0x177/0x1a0 fs/jfs/jfs_dmap.c:3021
Code: e9 20 ff ff ff e8 19 44 79 fe 48 c7 c7 20 1f 6a 8b 48 c7 c6 60 1c 6a 8b ba cd 0b 00 00 48 c7 c1 40 27 6a 8b e8 7a 69 dd fd 90 <0f> 0b e8 f2 43 79 fe 48 c7 c7 20 1f 6a 8b 48 c7 c6 60 1c 6a 8b ba
RSP: 0018:ffffc90004d47ac0 EFLAGS: 00010246
RAX: 0000000000000032 RBX: 000000000000000a RCX: f9264a0421273a00
RDX: ffffc90010809000 RSI: 00000000000009a0 RDI: 00000000000009a1
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520009a8f09 R12: 0000000000000000
R13: 000000000000000a R14: 0000000000000400 R15: ffff888049b21000
FS:  00007fceca6856c0(0000) GS:ffff8881266c9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f74812d6000 CR3: 000000005abe0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 dbAllocDmapLev+0x16b/0x3c0 fs/jfs/jfs_dmap.c:1985
 dbAllocCtl+0x14a/0x9c0 fs/jfs/jfs_dmap.c:1825
 dbAllocAG+0x1e6/0xff0 fs/jfs/jfs_dmap.c:1353
 dbDiscardAG+0x2da/0x8f0 fs/jfs/jfs_dmap.c:1608
 jfs_ioc_trim+0x429/0x690 fs/jfs/jfs_discard.c:106
 jfs_ioctl+0x291/0x3b0 fs/jfs/ioctl.c:131
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xff/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcecc44aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fceca685028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcecc6c6090 RCX: 00007fcecc44aeb9
RDX: 0000200000000040 RSI: 00000000c0185879 RDI: 0000000000000006
RBP: 00007fcecc4b8c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcecc6c6128 R14: 00007fcecc6c6090 R15: 00007ffd07767668
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x177/0x1a0 fs/jfs/jfs_dmap.c:3021
Code: e9 20 ff ff ff e8 19 44 79 fe 48 c7 c7 20 1f 6a 8b 48 c7 c6 60 1c 6a 8b ba cd 0b 00 00 48 c7 c1 40 27 6a 8b e8 7a 69 dd fd 90 <0f> 0b e8 f2 43 79 fe 48 c7 c7 20 1f 6a 8b 48 c7 c6 60 1c 6a 8b ba
RSP: 0018:ffffc90004d47ac0 EFLAGS: 00010246
RAX: 0000000000000032 RBX: 000000000000000a RCX: f9264a0421273a00
RDX: ffffc90010809000 RSI: 00000000000009a0 RDI: 00000000000009a1
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520009a8f09 R12: 0000000000000000
R13: 000000000000000a R14: 0000000000000400 R15: ffff888049b21000
FS:  00007fceca6856c0(0000) GS:ffff8881266c9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f74812d6000 CR3: 000000005abe0000 CR4: 00000000003526f0