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: 0 UID: 0 PID: 109 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:txUnlock+0xdaf/0xdf0 fs/jfs/jfs_txnmgr.c:932 Code: c8 fd 90 0f 0b e8 a1 1c 66 fe 48 c7 c7 20 6a 0b 8c 48 c7 c6 19 66 0b 8c ba a4 03 00 00 48 c7 c1 20 77 0b 8c e8 52 04 c8 fd 90 <0f> 0b e8 7a 1c 66 fe 48 c7 c7 20 6a 0b 8c 48 c7 c6 19 66 0b 8c ba RSP: 0018:ffffc9000263fc48 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: c00847b04b273000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900029c9090 R08: ffffc9000263f9c7 R09: 1ffff920004c7f38 R10: dffffc0000000000 R11: fffff520004c7f39 R12: dffffc0000000000 R13: 1ffff1100f06f32c R14: ffff888078379960 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125454000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0ecb372000 CR3: 0000000032f01000 CR4: 0000000000350ef0 Call Trace: txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline] jfs_lazycommit+0x582/0xaa0 fs/jfs/jfs_txnmgr.c:2734 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 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:932 Code: c8 fd 90 0f 0b e8 a1 1c 66 fe 48 c7 c7 20 6a 0b 8c 48 c7 c6 19 66 0b 8c ba a4 03 00 00 48 c7 c1 20 77 0b 8c e8 52 04 c8 fd 90 <0f> 0b e8 7a 1c 66 fe 48 c7 c7 20 6a 0b 8c 48 c7 c6 19 66 0b 8c ba RSP: 0018:ffffc9000263fc48 EFLAGS: 00010246 RAX: 0000000000000037 RBX: 0000000000001000 RCX: c00847b04b273000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900029c9090 R08: ffffc9000263f9c7 R09: 1ffff920004c7f38 R10: dffffc0000000000 R11: fffff520004c7f39 R12: dffffc0000000000 R13: 1ffff1100f06f32c R14: ffff888078379960 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125454000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0ecb372000 CR3: 0000000032f01000 CR4: 0000000000350ef0