From 71e609fb1e60cf13035c69c179e3ec722b2e26c4 Mon Sep 17 00:00:00 2001
From: Moritz Angermann <moritz.angermann@gmail.com>
Date: Thu, 18 Mar 2021 14:53:22 +0800
Subject: Add error information to osCommitMemory on failure.

---
 rts/win32/OSMem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rts/win32/OSMem.c b/rts/win32/OSMem.c
index 138660a879..dde1a74bbb 100644
--- a/rts/win32/OSMem.c
+++ b/rts/win32/OSMem.c
@@ -474,7 +474,7 @@ void osCommitMemory (void *at, W_ size)
     void *temp;
     temp = VirtualAlloc(at, size, MEM_COMMIT, PAGE_READWRITE);
     if (temp == NULL) {
-        sysErrorBelch("osCommitMemory: VirtualAlloc MEM_COMMIT failed");
+        sysErrorBelch("osCommitMemory: VirtualAlloc MEM_COMMIT failed to commit %" FMT_Word " bytes of memory  (error code: %lu)", size, GetLastError());
         stg_exit(EXIT_HEAPOVERFLOW);
     }
 }
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