From 4d9e71d278ac89a35e33636431c73451308c6551 Mon Sep 17 00:00:00 2001
From: Eggert Jung <eggert.s.jung@wischhof13.de>
Date: Sat, 28 Feb 2026 23:53:03 +0100
Subject: [PATCH] wip on ipc send (copy last page)

---
 kernel/syscall/skeleton.cc | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/syscall/skeleton.cc b/kernel/syscall/skeleton.cc
index 7cd8b02..061eb90 100644
--- a/kernel/syscall/skeleton.cc
+++ b/kernel/syscall/skeleton.cc
@@ -253,9 +253,10 @@ int receive(Vault& v, void* buffer, size_t size) {
     for(uint32_t i=0; i<num_pages; i++){
         uintptr_t offset = i==0?Page::offset(ipc->ptr):0; //apply offset only on first page
         uintptr_t paddr = isMapped((ipc->ptr)+(i*4096), v.thread_list[ipc->pid]->paging_tree->l4);
-        if (!copy_from_phys(v, paddr+offset, buffer, 4096-offset)) {
-            return -3;
-        }
+        if(total_len - (i*4096) > 4096)
+            copy_from_phys(v, paddr+offset, buffer, 4096-offset);
+        else
+            copy_from_phys(v, paddr, buffer, total_len - (i*4096));
     }
 	
 	return ipc->pid;