BUG at fs/jfs/jfs_txnmgr.c:663 assert(last)
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kernel BUG at fs/jfs/jfs_txnmgr.c:663!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 37 Comm: kworker/u4:3 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
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:txLock+0x1b92/0x1cc0 fs/jfs/jfs_txnmgr.c:663
Code: e9 6a f8 ff ff e8 1e d2 61 fe 48 c7 c7 e0 1b 0c 8c 48 c7 c6 d9 17 0c 8c ba 97 02 00 00 48 c7 c1 00 1d 0c 8c e8 df b2 c3 fd 90 <0f> 0b e8 f7 d1 61 fe 48 c7 c7 c0 1d 0c 8c e8 cb b2 c3 fd 48 c7 c7
RSP: 0018:ffffc900003f6e00 EFLAGS: 00010246
RAX: 000000000000002b RBX: 0000000000000000 RCX: 304f82921c418900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc900003f6f28 R08: ffffc900003f6b87 R09: 1ffff9200007ed70
R10: dffffc0000000000 R11: fffff5200007ed71 R12: 1ffff92000214c00
R13: ffffc900010a6000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88808c809000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000001fd86000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 diWrite+0x444/0x1f40 fs/jfs/jfs_imap.c:654
 txCommit+0x869/0x5410 fs/jfs/jfs_txnmgr.c:1257
 jfs_commit_inode+0x2ef/0x530 fs/jfs/inode.c:114
 jfs_write_inode+0x145/0x220 fs/jfs/inode.c:138
 write_inode fs/fs-writeback.c:1582 [inline]
 __writeback_single_inode+0x75a/0x10e0 fs/fs-writeback.c:1825
 writeback_sb_inodes+0x979/0x19d0 fs/fs-writeback.c:2054
 __writeback_inodes_wb+0x111/0x240 fs/fs-writeback.c:2130
 wb_writeback+0x459/0xb00 fs/fs-writeback.c:2241
 wb_check_start_all fs/fs-writeback.c:2367 [inline]
 wb_do_writeback fs/fs-writeback.c:2393 [inline]
 wb_workfn+0x921/0xf10 fs/fs-writeback.c:2426
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
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