BUG at fs/jfs/jfs_txnmgr.c:932 assert(mp->nohomeok > 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:932! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 111 Comm: jfsCommit Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:932 Code: db fd 90 0f 0b e8 41 30 75 fe 48 c7 c7 e0 3f a5 8b 48 c7 c6 d9 3b a5 8b ba a4 03 00 00 48 c7 c1 e0 4c a5 8b e8 e2 28 db fd 90 <0f> 0b e8 1a 30 75 fe 48 c7 c7 e0 3f a5 8b 48 c7 c6 d9 3b a5 8b ba RSP: 0018:ffffc900026e7b88 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 9e46d98200ec1600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000291a168 R08: ffffc900026e78a7 R09: 1ffff920004dcf14 R10: dffffc0000000000 R11: fffff520004dcf15 R12: dffffc0000000000 R13: 1ffff1100f8317a8 R14: ffff88807c18bd40 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125f44000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f749c4c98b0 CR3: 000000007e2ed000 CR4: 0000000000350ef0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline] jfs_lazycommit+0x584/0xa90 fs/jfs/jfs_txnmgr.c:2734 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:932 Code: db fd 90 0f 0b e8 41 30 75 fe 48 c7 c7 e0 3f a5 8b 48 c7 c6 d9 3b a5 8b ba a4 03 00 00 48 c7 c1 e0 4c a5 8b e8 e2 28 db fd 90 <0f> 0b e8 1a 30 75 fe 48 c7 c7 e0 3f a5 8b 48 c7 c6 d9 3b a5 8b ba RSP: 0018:ffffc900026e7b88 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: 9e46d98200ec1600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000291a168 R08: ffffc900026e78a7 R09: 1ffff920004dcf14 R10: dffffc0000000000 R11: fffff520004dcf15 R12: dffffc0000000000 R13: 1ffff1100f8317a8 R14: ffff88807c18bd40 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125f44000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f83d0004eb8 CR3: 000000003186d000 CR4: 0000000000350ef0