[compiler-rt] [scudo] limit VMA size for riscv64 for DefaultConfig (PR #76013)

[via llvm-commits]

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@@ -124,8 +124,14 @@ struct DefaultConfig {
   struct Primary {
     using SizeClassMap = DefaultSizeClassMap;
 #if SCUDO_CAN_USE_PRIMARY64
+#if SCUDO_RISCV64
+    // Support 39-bit VMA for riscv-64
+    static const uptr RegionSizeLog = 30U;
+    static const uptr GroupSizeLog = 19U;
+#else
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ChiaHungDuan wrote:

I see. Can we try 28 on your case and if that works, I would suggest having a slightly smaller number like that.

https://github.com/llvm/llvm-project/pull/76013