sol5-linux:~ $ valgrind caget SOL5:MEDIPIX:SizeX
==8163== Memcheck, a memory error detector
==8163== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==8163== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==8163== Command: caget SOL5:MEDIPIX:SizeX
==8163==
SOL5:MEDIPIX:SizeX             1
==8163== Thread 2:
==8163== Invalid read of size 8
==8163==    at 0x4EACBB1: ipAddrToAsciiEnginePrivate::run() (ipAddrToAsciiAsynchronous.cpp:273)
==8163==    by 0x4EAEC28: epicsThreadCallEntryPoint (epicsThread.cpp:85)
==8163==    by 0x4EB4F9B: start_routine (osdThread.c:403)
==8163==    by 0x36AEA079D0: start_thread (in /lib64/libpthread-2.12.so)
==8163==    by 0x36AE2E89DC: clone (in /lib64/libc-2.12.so)
==8163==  Address 0x51ff550 is 0 bytes inside a block of size 2,440 free'd
==8163==    at 0x4A06016: operator delete(void*) (vg_replace_malloc.c:480)
==8163==    by 0x4C3844F: cac::~cac() (tsFreeList.h:128)
==8163==    by 0x4C38848: cac::~cac() (cac.cpp:343)
==8163==    by 0x4C5317D: ca_client_context::~ca_client_context() (epicsMemory.h:52)
==8163==    by 0x4C53558: ca_client_context::~ca_client_context() (ca_client_context.cpp:193)
==8163==    by 0x4C3B942: ca_context_destroy (access.cpp:252)
==8163==    by 0x40215F: main (caget.c:551)
==8163==
==8163== Invalid read of size 8
==8163==    at 0x4C5C170: msgForMultiplyDefinedPV::transactionComplete(char const*) (msgForMultiplyDefinedPV.cpp:58)
==8163==    by 0x4EACBB5: ipAddrToAsciiEnginePrivate::run() (ipAddrToAsciiAsynchronous.cpp:273)
==8163==    by 0x4EAEC28: epicsThreadCallEntryPoint (epicsThread.cpp:85)
==8163==    by 0x4EB4F9B: start_routine (osdThread.c:403)
==8163==    by 0x36AEA079D0: start_thread (in /lib64/libpthread-2.12.so)
==8163==    by 0x36AE2E89DC: clone (in /lib64/libc-2.12.so)
==8163==  Address 0x51ff5e0 is 144 bytes inside a block of size 2,440 free'd
==8163==    at 0x4A06016: operator delete(void*) (vg_replace_malloc.c:480)
==8163==    by 0x4C3844F: cac::~cac() (tsFreeList.h:128)
==8163==    by 0x4C38848: cac::~cac() (cac.cpp:343)
==8163==    by 0x4C5317D: ca_client_context::~ca_client_context() (epicsMemory.h:52)
==8163==    by 0x4C53558: ca_client_context::~ca_client_context() (ca_client_context.cpp:193)
==8163==    by 0x4C3B942: ca_context_destroy (access.cpp:252)
==8163==    by 0x40215F: main (caget.c:551)
==8163==
==8163== Invalid read of size 8
==8163==    at 0x4C5C185: msgForMultiplyDefinedPV::transactionComplete(char const*) (msgForMultiplyDefinedPV.cpp:58)
==8163==    by 0x4EACBB5: ipAddrToAsciiEnginePrivate::run() (ipAddrToAsciiAsynchronous.cpp:273)
==8163==    by 0x4EAEC28: epicsThreadCallEntryPoint (epicsThread.cpp:85)
==8163==    by 0x4EB4F9B: start_routine (osdThread.c:403)
==8163==    by 0x36AEA079D0: start_thread (in /lib64/libpthread-2.12.so)
==8163==    by 0x36AE2E89DC: clone (in /lib64/libc-2.12.so)
==8163==  Address 0x510dfe0 is 16 bytes inside a block of size 608 free'd
==8163==    at 0x4A06016: operator delete(void*) (vg_replace_malloc.c:480)
==8163==    by 0x4C5317D: ca_client_context::~ca_client_context() (epicsMemory.h:52)
==8163==    by 0x4C53558: ca_client_context::~ca_client_context() (ca_client_context.cpp:193)
==8163==    by 0x4C3B942: ca_context_destroy (access.cpp:252)
==8163==    by 0x40215F: main (caget.c:551)
==8163==
pure virtual method called
terminate called without an active exception
==8163==
==8163== HEAP SUMMARY:
==8163==     in use at exit: 107,835 bytes in 535 blocks
==8163==   total heap usage: 8,613 allocs, 8,025 frees, 5,192,523 bytes allocated
==8163==
==8163== LEAK SUMMARY:
==8163==    definitely lost: 107 bytes in 2 blocks
==8163==    indirectly lost: 16 bytes in 1 blocks
==8163==      possibly lost: 664 bytes in 4 blocks
==8163==    still reachable: 106,712 bytes in 528 blocks
==8163==         suppressed: 0 bytes in 0 blocks
==8163== Rerun with --leak-check=full to see details of leaked memory
==8163==
==8163== For counts of detected and suppressed errors, rerun with: -v
==8163== ERROR SUMMARY: 3 errors from 3 contexts (suppressed: 6 from 6)