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: 276 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: af 94 d0 06 0f 0b e8 c8 f0 a9 fe 48 c7 c7 80 34 42 8a 48 c7 c6 79 30 42 8a ba a3 03 00 00 48 c7 c1 40 3f 42 8a e8 89 94 d0 06 <0f> 0b e8 a2 f0 a9 fe 48 c7 c7 80 34 42 8a 48 c7 c6 79 30 42 8a ba RSP: 0018:ffffc90002cdfd28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 85819275862f0500 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900028522d0 R08: dffffc0000000000 R09: ffffed10172267b0 R10: ffffed10172267b0 R11: 1ffff110172267af R12: ffff888067b2daa8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90002631330 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faaaeb3b000 CR3: 000000005567a000 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 852293ad3710c9e1 ]--- RIP: 0010:txUnlock+0xc87/0xcb0 fs/jfs/jfs_txnmgr.c:931 Code: af 94 d0 06 0f 0b e8 c8 f0 a9 fe 48 c7 c7 80 34 42 8a 48 c7 c6 79 30 42 8a ba a3 03 00 00 48 c7 c1 40 3f 42 8a e8 89 94 d0 06 <0f> 0b e8 a2 f0 a9 fe 48 c7 c7 80 34 42 8a 48 c7 c6 79 30 42 8a ba RSP: 0018:ffffc90002cdfd28 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 85819275862f0500 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900028522d0 R08: dffffc0000000000 R09: ffffed10172267b0 R10: ffffed10172267b0 R11: 1ffff110172267af R12: ffff888067b2daa8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90002631330 FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ee3c6c5950 CR3: 00000000780ae000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400