BUG at fs/jfs/jfs_txnmgr.c:932 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:932! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 278 Comm: jfsCommit Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:txUnlock+0xc7d/0xcb0 fs/jfs/jfs_txnmgr.c:932 Code: f9 7b e2 06 0f 0b e8 42 0b a6 fe 48 c7 c7 40 52 62 8a 48 c7 c6 29 4e 62 8a ba a4 03 00 00 48 c7 c1 00 5d 62 8a e8 d3 7b e2 06 <0f> 0b e8 1c 0b a6 fe 48 c7 c7 40 52 62 8a 48 c7 c6 29 4e 62 8a ba RSP: 0000:ffffc90002d3fd30 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000000000 RCX: d38f4b13b63ba800 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88805da783e0 R08: ffff8880b9133d7f R09: 1ffff110172267af R10: dffffc0000000000 R11: ffffed10172267b0 R12: ffffc900028b2120 R13: dffffc0000000000 R14: 0000000000000024 R15: ffff888064274a94 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdea7c5c000 CR3: 0000000074730000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2717 [inline] jfs_lazycommit+0x598/0xb60 fs/jfs/jfs_txnmgr.c:2767 kthread+0x42e/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Modules linked in: ---[ end trace 191a40b428dff61c ]--- RIP: 0010:txUnlock+0xc7d/0xcb0 fs/jfs/jfs_txnmgr.c:932 Code: f9 7b e2 06 0f 0b e8 42 0b a6 fe 48 c7 c7 40 52 62 8a 48 c7 c6 29 4e 62 8a ba a4 03 00 00 48 c7 c1 00 5d 62 8a e8 d3 7b e2 06 <0f> 0b e8 1c 0b a6 fe 48 c7 c7 40 52 62 8a 48 c7 c6 29 4e 62 8a ba RSP: 0000:ffffc90002d3fd30 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000000000 RCX: d38f4b13b63ba800 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88805da783e0 R08: ffff8880b9133d7f R09: 1ffff110172267af R10: dffffc0000000000 R11: ffffed10172267b0 R12: ffffc900028b2120 R13: dffffc0000000000 R14: 0000000000000024 R15: ffff888064274a94 FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0fe062c000 CR3: 0000000065f8a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400