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!heap and Virtual block size 0

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Kjell Gunnar

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Nov 30, 2009, 7:55:56 AM11/30/09

Does this mean corrupt heap, or is it a kind of warning?
What can cause this (user mode dump XP SP 2 , MFC 7.0 program)

Regards
Kjell Gunnar

0:000> !heap -s -v
Heap Flags Reserv Commit Virt Free List UCR Virt
Lock Fast
(k) (k) (k) (k) length blocks
cont. heap
-----------------------------------------------------------------------------
..00150000 00000002 2048 1484 1484 63 12 2 0
0 L
.00250000 00001002 64 40 40 1 1 1 0
0 L
.00260000 00008000 64 12 12 10 1 1 0
0
......Virtual block: 0ca70000 - 0ca70000 (size 00000000)
Virtual block: 0cb20000 - 0cb20000 (size 00000000)
Virtual block: 0cbd0000 - 0cbd0000 (size 00000000)
Virtual block: 0cc80000 - 0cc80000 (size 00000000)
01a60000 00001002 31808 16676 2284 232 60 13 4
3 L
.....01a80000 00001002 15424 7852 588 92 18 16
0 0 L

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