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: 5330 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 de 76 6b fe 48 c7 c7 e0 fb ea 8b 48 c7 c6 d9 f7 ea 8b ba 96 02 00 00 48 c7 c1 00 fd ea 8b e8 0f a1 ce fd 90 <0f> 0b e8 b7 76 6b fe 48 c7 c7 c0 fd ea 8b e8 fb a0 ce fd 48 c7 c7
RSP: 0018:ffffc9000742f400 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 24d6950f529c9e00
RDX: ffffc90021003000 RSI: 00000000000076ca RDI: 00000000000076cb
RBP: ffffc9000742f530 R08: ffffc9000742f187 R09: 1ffff92000e85e30
R10: dffffc0000000000 R11: fffff52000e85e31 R12: 1ffff920002b5000
R13: ffffc900015a8000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f1a184a26c0(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000010000 CR3: 000000001bf05000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 xtTruncate+0x8bd/0x2f20 fs/jfs/jfs_xtree.c:2337
 jfs_truncate_nolock+0x19a/0x340 fs/jfs/inode.c:396
 jfs_truncate fs/jfs/inode.c:420 [inline]
 jfs_write_failed fs/jfs/inode.c:295 [inline]
 jfs_write_end+0x16f/0x1f0 fs/jfs/inode.c:322
 generic_perform_write+0x620/0x8f0 mm/filemap.c:4335
 generic_file_write_iter+0x14a/0x680 mm/filemap.c:4457
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x61d/0xb90 fs/read_write.c:686
 ksys_write+0x150/0x270 fs/read_write.c:738
 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: 0033:0x7f1a1759aeb9
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:00007f1a184a2028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1a17816090 RCX: 00007f1a1759aeb9
RDX: 00000000fffffd86 RSI: 0000200000000000 RDI: 0000000000000007
RBP: 00007f1a17608c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1a17816128 R14: 00007f1a17816090 R15: 00007ffcf55fef78
 </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 de 76 6b fe 48 c7 c7 e0 fb ea 8b 48 c7 c6 d9 f7 ea 8b ba 96 02 00 00 48 c7 c1 00 fd ea 8b e8 0f a1 ce fd 90 <0f> 0b e8 b7 76 6b fe 48 c7 c7 c0 fd ea 8b e8 fb a0 ce fd 48 c7 c7
RSP: 0018:ffffc9000742f400 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 24d6950f529c9e00
RDX: ffffc90021003000 RSI: 00000000000076ca RDI: 00000000000076cb
RBP: ffffc9000742f530 R08: ffffc9000742f187 R09: 1ffff92000e85e30
R10: dffffc0000000000 R11: fffff52000e85e31 R12: 1ffff920002b5000
R13: ffffc900015a8000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f1a184a26c0(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1a1845fff8 CR3: 000000001bf05000 CR4: 0000000000352ef0