From 4d7be85e730bc7f46ec5433c425733c4b65a90ed Mon Sep 17 00:00:00 2001 From: Merry Date: Sun, 1 Jan 2023 11:14:44 +0000 Subject: host_memory: Allocate virtual_base with MAP_NORESERVE Specify that we do not require swap to be reserved for this address range; allow overcommitting. --- src/common/host_memory.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/common/host_memory.cpp b/src/common/host_memory.cpp index 909f6cf3f..4a67f77b2 100644 --- a/src/common/host_memory.cpp +++ b/src/common/host_memory.cpp @@ -393,8 +393,8 @@ public: } // Virtual memory initialization - virtual_base = static_cast( - mmap(nullptr, virtual_size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)); + virtual_base = static_cast(mmap(nullptr, virtual_size, PROT_NONE, + MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0)); if (virtual_base == MAP_FAILED) { LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno)); throw std::bad_alloc{}; -- cgit v1.2.3