Changeset 26338 in vbox for trunk/src/VBox/VMM/testcase/tstPDMAsyncCompletionStress.cpp

Timestamp:

Feb 9, 2010 12:54:20 AM (15 years ago)

Author:

vboxsync

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

57426

Message:

AsyncCompletion: Introduce range locks to prevent concurrent access to the same file range. Fixes inconsistent data for tasks with unaligned tasks where we have to use bounce buffers (i.e block table updates when a VDI file grows)

File:

• trunk/src/VBox/VMM/testcase/tstPDMAsyncCompletionStress.cpp (modified) (3 diffs)

trunk/src/VBox/VMM/testcase/tstPDMAsyncCompletionStress.cpp

@@ -49 +49 @@
 #include <iprt/thread.h>
 #include <iprt/param.h>
+#include <iprt/message.h>
 
 #define TESTCASE "tstPDMAsyncCompletionStress"
@@ -179 +180 @@
 
         if (memcmp(pbBuf, pbTestPattern, cbCompare))
-            AssertMsgFailed(("Unexpected data for off=%RTfoff size=%u\n", pTestTask->off, pTestTask->DataSeg.cbSeg));
+        {
+            unsigned idx = 0;
+
+            while (   (pbBuf[idx] == pbTestPattern[idx])
+                   && (idx < cbCompare))
+                idx++;
+
+            RTMsgError("Unexpected data for off=%RTfoff size=%u\n"
+                       "Expected %c got %c\n",
+                       pTestTask->off + idx, pTestTask->DataSeg.cbSeg,
+                       pbTestPattern[idx], pbBuf[idx]);
+            RTAssertDebugBreak();
+        }
 
         pbBuf  += cbCompare;
@@ -315 +328 @@
     int uRnd = RTRandU32Ex(0, 100);
 
-    return (uRnd < iPercentage); /* This should be enough for our purpose */
+    return (uRnd <= iPercentage); /* This should be enough for our purpose */
 }