RAI: Never use MADV_FREE

kuszmaul · kpamnany · commit 05150068cb85 · 2023-10-21T17:48:55.000-04:00
diff --git a/src/gc-pages.c b/src/gc-pages.c
@@ -180,7 +180,7 @@ void jl_gc_free_page(jl_gc_pagemeta_t *pg) JL_NOTSAFEPOINT
     }
 #ifdef _OS_WINDOWS_
     VirtualFree(p, decommit_size, MEM_DECOMMIT);
-#elif defined(MADV_FREE)
+#elif 0
     static int supports_madv_free = 1;
     if (supports_madv_free) {
         if (madvise(p, decommit_size, MADV_FREE) == -1) {

Original file line number	Diff line number	Diff line change
`@@ -180,7 +180,7 @@ void jl_gc_free_page(jl_gc_pagemeta_t *pg) JL_NOTSAFEPOINT`
`180`	`180`	`}`
`181`	`181`	`#ifdef _OS_WINDOWS_`
`182`	`182`	`VirtualFree(p, decommit_size, MEM_DECOMMIT);`
`183`		`-#elif defined(MADV_FREE)`
	`183`	`+#elif 0`
`184`	`184`	`static int supports_madv_free = 1;`
`185`	`185`	`if (supports_madv_free) {`
`186`	`186`	`if (madvise(p, decommit_size, MADV_FREE) == -1) {`