Fix rv32 page table panic

Jiajie Chen · Jiajie Chen · commit de6d5b6d54b7 · 2019-06-30T16:54:18.000+08:00
diff --git a/kernel/src/arch/riscv32/paging.rs b/kernel/src/arch/riscv32/paging.rs
@@ -176,11 +176,11 @@ impl PageTableExt for PageTableImpl {
         let table = unsafe { &mut *(phys_to_virt(target) as *mut RvPageTable) };
         table.zero();
 
-        // MaybeUninit is not working
+        // MaybeUninit is not working, dunno why
         PageTableImpl {
             page_table: TopLevelPageTable::new(table, PHYSICAL_MEMORY_OFFSET),
             root_frame: frame,
-            entry: unsafe { core::mem::zeroed() },
+            entry: unsafe { core::mem::uninitialized() },
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -176,11 +176,11 @@ impl PageTableExt for PageTableImpl {`
`176`	`176`	`let table = unsafe { &mut (phys_to_virt(target) as mut RvPageTable) };`
`177`	`177`	`table.zero();`
`178`	`178`
`179`		`- // MaybeUninit is not working`
	`179`	`+ // MaybeUninit is not working, dunno why`
`180`	`180`	`PageTableImpl {`
`181`	`181`	`page_table: TopLevelPageTable::new(table, PHYSICAL_MEMORY_OFFSET),`
`182`	`182`	`root_frame: frame,`
`183`		`- entry: unsafe { core::mem::zeroed() },`
	`183`	`+ entry: unsafe { core::mem::uninitialized() },`
`184`	`184`	`}`
`185`	`185`	`}`
`186`	`186`