Changeset 64789 in vbox for trunk/src/VBox

Timestamp:

Dec 6, 2016 2:26:13 PM (8 years ago)

Author:

vboxsync

Message:

Storage/IOBufMgmt: Reset the bins if there is nothing in the current one but all memory is marked free so it gets defragmented, should fix some I/O hangs observed on the testboxes if a request allocates memory from a higher bin than there are currently objects allocated assigned for (1MB request but only bins with smaller sizes populated leading to failed allocations)

File:

• trunk/src/VBox/Devices/Storage/IOBufMgmt.cpp (modified) (1 diff)

trunk/src/VBox/Devices/Storage/IOBufMgmt.cpp

@@ -202 +202 @@
 
     PIOBUFMGRBIN pBin = &pThis->paBins[iBin];
+    /* Reset the bins if there is nothing in the current one but all the memory is marked as free. */
+    if (   pThis->cbFree == pThis->cbMax
+        && pBin->iFree == 0)
+        iobufMgrResetBins(pThis);
+
     if (pBin->iFree == 0)
     {