BUG at fs/jfs/jfs_txnmgr.c:662 assert(last)
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kernel BUG at fs/jfs/jfs_txnmgr.c:662!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5349 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:txLock+0x1b92/0x1cc0 fs/jfs/jfs_txnmgr.c:662
Code: e9 6a f8 ff ff e8 9e 33 65 fe 48 c7 c7 60 7f 0b 8c 48 c7 c6 59 7b 0b 8c ba 96 02 00 00 48 c7 c1 80 80 0b 8c e8 0f 31 c7 fd 90 <0f> 0b e8 77 33 65 fe 48 c7 c7 40 81 0b 8c e8 fb 30 c7 fd 48 c7 c7
RSP: 0018:ffffc9000de17740 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 05cf5f169f208500
RDX: ffffc9000f7f9000 RSI: 00000000000028a3 RDI: 00000000000028a4
RBP: ffffc9000de17868 R08: ffffc9000de174c7 R09: 1ffff92001bc2e98
R10: dffffc0000000000 R11: fffff52001bc2e99 R12: 1ffff92000208e00
R13: ffffc90001047000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f7d5300b6c0(0000) GS:ffff88808ca4e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd6f204d000 CR3: 0000000037400000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 diWrite+0x444/0x1f40 fs/jfs/jfs_imap.c:654
 txCommit+0x869/0x5410 fs/jfs/jfs_txnmgr.c:1256
 jfs_mkdir+0x8e9/0xb00 fs/jfs/namei.c:291
 vfs_mkdir+0x413/0x630 fs/namei.c:5233
 filename_mkdirat+0x285/0x510 fs/namei.c:5266
 __do_sys_mkdirat fs/namei.c:5287 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5284
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7d5219b607
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 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:00007f7d5300ae18 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f7d5300aea0 RCX: 00007f7d5219b607
RDX: 00000000000001ff RSI: 0000200000000300 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000200000000300 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000300
R13: 00007f7d5300ae60 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txLock+0x1b92/0x1cc0 fs/jfs/jfs_txnmgr.c:662
Code: e9 6a f8 ff ff e8 9e 33 65 fe 48 c7 c7 60 7f 0b 8c 48 c7 c6 59 7b 0b 8c ba 96 02 00 00 48 c7 c1 80 80 0b 8c e8 0f 31 c7 fd 90 <0f> 0b e8 77 33 65 fe 48 c7 c7 40 81 0b 8c e8 fb 30 c7 fd 48 c7 c7
RSP: 0018:ffffc9000de17740 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 05cf5f169f208500
RDX: ffffc9000f7f9000 RSI: 00000000000028a3 RDI: 00000000000028a4
RBP: ffffc9000de17868 R08: ffffc9000de174c7 R09: 1ffff92001bc2e98
R10: dffffc0000000000 R11: fffff52001bc2e99 R12: 1ffff92000208e00
R13: ffffc90001047000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f7d5300b6c0(0000) GS:ffff88808ca4e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd6f2072000 CR3: 0000000037400000 CR4: 0000000000352ef0