Changeset 101192 in vbox for trunk

Timestamp:

Sep 20, 2023 12:27:00 PM (18 months ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

159165

Message:

IPRT/mem: Fix assertion in generic ASMBitFirstClear triggered by rtHeapPageIntBlockAllocatorAlloc. bugref:10370

File:

• trunk/src/VBox/Runtime/r3/mempage-heap.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/r3/mempage-heap.cpp

@@ -250 +250 @@
         if (pChunk->cFree > 0)
         {
-            int idxBlock = ASMBitFirstClear(&pChunk->bmAlloc[0], RT_MIN(RTHEAPPAGEBLOCKALLOCCHUNK_MAX_BLOCKS, pChunk->cBlocks));
+            uint32_t const cBits = RT_ALIGN_32(pChunk->cBlocks, 64);
+            int idxBlock = ASMBitFirstClear(&pChunk->bmAlloc[0], RT_MIN(RTHEAPPAGEBLOCKALLOCCHUNK_MAX_BLOCKS, cBits));
             if (idxBlock >= 0)
             {