disable MAP_NORESERVE on huge pages

2020-01-05 22:07:16 -08:00
parent 45582d1fb5
commit d8d69c2c94
1 changed files with 1 additions and 1 deletions
--- a/src/os.c
+++ b/src/os.c
@@ -331,7 +331,7 @@ static void* mi_unix_mmap(void* addr, size_t size, size_t try_alignment, int pro
      mi_atomic_cas_weak(&large_page_try_ok, try_ok - 1, try_ok);
    }
    else {
-      int lflags = flags;
+      int lflags = flags & ~MAP_NORESERVE;  // using NORESERVE on huge pages seems to fail on Linux
      int lfd = fd;
      #ifdef MAP_ALIGNED_SUPER
      lflags |= MAP_ALIGNED_SUPER;