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 PTI CPU: 1 UID: 0 PID: 115 Comm: jfsCommit Not tainted 6.15.0-rc5-syzkaller-00136-g9c69f8884904 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025 RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:931 Code: ec fd 90 0f 0b e8 b1 5e 84 fe 48 c7 c7 80 90 a3 8b 48 c7 c6 79 8c a3 8b ba a3 03 00 00 48 c7 c1 80 9d a3 8b e8 12 1c ec fd 90 <0f> 0b e8 8a 5e 84 fe 48 c7 c7 80 90 a3 8b 48 c7 c6 79 8c a3 8b ba RSP: 0018:ffffc90002e07c68 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: d5125ae55bfb7b00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000297a120 R08: ffffc90002e07947 R09: 1ffff920005c0f28 R10: dffffc0000000000 R11: fffff520005c0f29 R12: dffffc0000000000 R13: 1ffff11009cbc1c7 R14: ffff88804e5e0e38 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc3bec61e0 CR3: 000000004c6f6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline] jfs_lazycommit+0x584/0xa90 fs/jfs/jfs_txnmgr.c:2733 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 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: ec fd 90 0f 0b e8 b1 5e 84 fe 48 c7 c7 80 90 a3 8b 48 c7 c6 79 8c a3 8b ba a3 03 00 00 48 c7 c1 80 9d a3 8b e8 12 1c ec fd 90 <0f> 0b e8 8a 5e 84 fe 48 c7 c7 80 90 a3 8b 48 c7 c6 79 8c a3 8b ba RSP: 0018:ffffc90002e07c68 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: d5125ae55bfb7b00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000297a120 R08: ffffc90002e07947 R09: 1ffff920005c0f28 R10: dffffc0000000000 R11: fffff520005c0f29 R12: dffffc0000000000 R13: 1ffff11009cbc1c7 R14: ffff88804e5e0e38 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bea6b218e8 CR3: 000000002076a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400