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: 1 PID: 277 Comm: jfsCommit Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:931 Code: 0f f4 d0 06 0f 0b e8 98 ef a9 fe 48 c7 c7 c0 37 42 8a 48 c7 c6 b9 33 42 8a ba a3 03 00 00 48 c7 c1 80 42 42 8a e8 e9 f3 d0 06 <0f> 0b e8 72 ef a9 fe 48 c7 c7 c0 37 42 8a 48 c7 c6 b9 33 42 8a ba RSP: 0018:ffffc900031cfd28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 3af8949f8f39f700 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90002d220d8 R08: dffffc0000000000 R09: fffffbfff1ad334e R10: fffffbfff1ad334e R11: 1ffffffff1ad334d R12: ffff8880232459b0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90002b01110 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa8b89f1218 CR3: 0000000062232000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 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 5accd6799ad84e23 ]--- RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:931 Code: 0f f4 d0 06 0f 0b e8 98 ef a9 fe 48 c7 c7 c0 37 42 8a 48 c7 c6 b9 33 42 8a ba a3 03 00 00 48 c7 c1 80 42 42 8a e8 e9 f3 d0 06 <0f> 0b e8 72 ef a9 fe 48 c7 c7 c0 37 42 8a 48 c7 c6 b9 33 42 8a ba RSP: 0018:ffffc900031cfd28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 3af8949f8f39f700 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90002d220d8 R08: dffffc0000000000 R09: fffffbfff1ad334e R10: fffffbfff1ad334e R11: 1ffffffff1ad334d R12: ffff8880232459b0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90002b01110 FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fba6a7a1ca0 CR3: 000000002a831000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400