Comment #3 on issue 10012 by [email protected]: Purify failure: Invalid
pointer read [IPR] in WinsockInitSingleton in tests_shell_tests
http://code.google.com/p/chromium/issues/detail?id=10012
Here is a better look at the top of the stack as reported by purify:
[E] IPR: Invalid pointer read in _delayLoadHelper2 {1 occurrence}
Reading 4 bytes from 0x80400075 (4 bytes at 0x80400075 illegal)
Address 0x80400075 points into invalid memory
Thread ID: 0x1404
Error location
_delayLoadHelper2 [f:\sp\vctools\delayimp\delayhlp.cpp:279]
dli.dlp.fImportByName
= !IMAGE_SNAP_BY_ORDINAL(pitd->u1.Ordinal);
if (dli.dlp.fImportByName) {
=> dli.dlp.szProcName =
LPCSTR(PFromRva<PIMAGE_IMPORT_BY_NAME>(RVA(UINT_PTR(pitd->u1.AddressOfData)))->Name);
}
else {
dli.dlp.dwOrdinal =
DWORD(IMAGE_ORDINAL(pitd->u1.Ordinal));
_tailMerge_WS2_32_dll
[E:\code\v0\src\chrome\Debug\test_shell_tests.exe]
?A0xd4bd6c4c::WinsockInitSingleton::WinsockInitSingleton(void)
[e:\code\v0\src\net\base\winsock_init.cc:18]
WinsockInitSingleton() : did_init_(false) {
WORD winsock_ver = MAKEWORD(2,2);
WSAData wsa_data = {0};
=> did_init_ = (WSAStartup(winsock_ver, &wsa_data) == 0);
// The first time WSAGetLastError is called, the delay
load
helper will
// resolve the address with GetProcAddress and fixup
the import.
If a third
DefaultSingletonTraits<WinsockInitSingleton::?A0xd4bd6c4c>::New(void)
[e:\code\v0\src\base\singleton.h:21]
static Type* New() {
// The parenthesis is very important here; it forces
POD type
// initialization.
=> return new Type();
}
// Destroys the object.
Singleton<WinsockInitSingleton::?
A0xd4bd6c4c,DefaultSingletonTraits<WinsockInitSingleton::?
A0xd4bd6c4c>,WinsockInitSingleton::?A0xd4bd6c4c>::get(void)
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