BUG at fs/jfs/jfs_txnmgr.c:931 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:931! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 110 Comm: jfsCommit Not tainted 6.16.0-rc4-syzkaller-00013-g66701750d556 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:931 Code: e5 fd 90 0f 0b e8 11 b7 7e fe 48 c7 c7 a0 02 c4 8b 48 c7 c6 99 fe c3 8b ba a3 03 00 00 48 c7 c1 a0 0f c4 8b e8 12 f7 e5 fd 90 <0f> 0b e8 ea b6 7e fe 48 c7 c7 a0 02 c4 8b 48 c7 c6 99 fe c3 8b ba RSP: 0018:ffffc900026e7bc8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: f8b1958806144100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000290a0d8 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa9fc R12: dffffc0000000000 R13: 1ffff11009a94d0d R14: ffff88804d4a6868 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125c50000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9c1609a000 CR3: 000000007db01000 CR4: 0000000000350ef0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline] jfs_lazycommit+0x584/0xa90 fs/jfs/jfs_txnmgr.c:2733 kthread+0x711/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:931 Code: e5 fd 90 0f 0b e8 11 b7 7e fe 48 c7 c7 a0 02 c4 8b 48 c7 c6 99 fe c3 8b ba a3 03 00 00 48 c7 c1 a0 0f c4 8b e8 12 f7 e5 fd 90 <0f> 0b e8 ea b6 7e fe 48 c7 c7 a0 02 c4 8b 48 c7 c6 99 fe c3 8b ba RSP: 0018:ffffc900026e7bc8 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: f8b1958806144100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000290a0d8 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa9fc R12: dffffc0000000000 R13: 1ffff11009a94d0d R14: ffff88804d4a6868 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125c50000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d10dff8 CR3: 00000000783f5000 CR4: 0000000000350ef0