BUG at fs/jfs/jfs_txnmgr.c:931 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:931! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 277 Comm: jfsCommit Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:931 Code: df d2 d0 06 0f 0b e8 28 ee a9 fe 48 c7 c7 c0 34 42 8a 48 c7 c6 b9 30 42 8a ba a3 03 00 00 48 c7 c1 80 3f 42 8a e8 b9 d2 d0 06 <0f> 0b e8 02 ee a9 fe 48 c7 c7 c0 34 42 8a 48 c7 c6 b9 30 42 8a ba RSP: 0000:ffffc90002c7fd28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: cfbf749e84e25800 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900027f2168 R08: dffffc0000000000 R09: ffffed10172067b0 R10: ffffed10172067b0 R11: 1ffff110172067af R12: ffff88802acdf9b0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc900025d1220 FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc5f7f6b219 CR3: 0000000062494000 CR4: 00000000003506f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2716 [inline] jfs_lazycommit+0x583/0xb20 fs/jfs/jfs_txnmgr.c:2766 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Modules linked in: ---[ end trace c2dd7e9eb370df82 ]--- RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:931 Code: df d2 d0 06 0f 0b e8 28 ee a9 fe 48 c7 c7 c0 34 42 8a 48 c7 c6 b9 30 42 8a ba a3 03 00 00 48 c7 c1 80 3f 42 8a e8 b9 d2 d0 06 <0f> 0b e8 02 ee a9 fe 48 c7 c7 c0 34 42 8a 48 c7 c6 b9 30 42 8a ba RSP: 0000:ffffc90002c7fd28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: cfbf749e84e25800 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900027f2168 R08: dffffc0000000000 R09: ffffed10172067b0 R10: ffffed10172067b0 R11: 1ffff110172067af R12: ffff88802acdf9b0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc900025d1220 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f80b3464ad8 CR3: 000000002a4dc000 CR4: 00000000003506e0