Status: Untriaged
Owner: [email protected]
CC: [email protected],  [email protected]
Labels: Type-Bug Pri-2 OS-All Area-Misc Crash

New issue 8738 by [email protected]: null pointer read in  
proxy_service.cc
http://code.google.com/p/chromium/issues/detail?id=8738

This happened out of the blue on the net purify bot:
http://build.chromium.org/buildbot/purify/net/11604/
It doesn't look like it's tied to a particular checkin.

[E] NPR: NULL pointer read in
std::_Deque_const_iterator<scoped_refptr<PacRequest::ProxyService::net>,all
ocator<scoped_refptr<PacRequest::ProxyService::net>>::std,1>::*(void)const
{1 occurrence}
         Reading 4 bytes from 0x00000000 (4 bytes at 0x00000000 illegal)
         Address 0x00000000 points into invalid memory
         Thread ID: 0x119f8
         Error location

std::_Deque_const_iterator<scoped_refptr<PacRequest::ProxyService::net>,all
ocator<scoped_refptr<PacRequest::ProxyService::net>>::std,1>::*(void)const
[c:\program files\microsoft visual studio 8\vc\include\deque.:135]

std::_Deque_iterator<scoped_refptr<PacRequest::ProxyService::net>,allocator
<scoped_refptr<PacRequest::ProxyService::net>>::std,1>::*(void)const
[c:\program files\microsoft visual studio 8\vc\include\deque.:369]

std::deque<scoped_refptr<PacRequest::ProxyService::net>,allocator<scoped_re
fptr<PacRequest::ProxyService::net>>::std>::front(void) [c:\program
files\microsoft visual studio 8\vc\include\deque.:748]

net::ProxyService::ProcessPendingRequests(PacRequest::ProxyService::net *)
[c:\b\slave\ps\build\src\net\proxy\proxy_service.cc:379]

net::ProxyService::RemoveFrontOfRequestQueue(PacRequest::ProxyService::net
*) [c:\b\slave\ps\build\src\net\proxy\proxy_service.cc:420]
             net::ProxyService::PacRequest::QueryComplete(int)
[c:\b\slave\ps\build\src\net\proxy\proxy_service.cc:152]
             ?
dispatchtomet...@vpacrequest@proxyserv...@net@@p8...@aexh@ZH@@YAXPAVPacRequ
e...@proxyservice@net@@p8...@aexh@zabu?$tup...@h@@@Z
[c:\b\slave\ps\build\src\base\tuple.h:393]
             RunnableMethod<class net::ProxyService::PacRequest,void (
net::ProxyService::PacRequest::*)(int),struct Tuple1<int> >::Run(void)
[c:\b\slave\ps\build\src\base\task.h:307]
             MessageLoop::RunTask(Task *)
[c:\b\slave\ps\build\src\base\message_loop.cc:308]
             MessageLoop::DeferOrRunPendingTask(PendingTask::MessageLoop
const&) [c:\b\slave\ps\build\src\base\message_loop.cc:316]
             MessageLoop::DoWork(void)
[c:\b\slave\ps\build\src\base\message_loop.cc:416]
             base::MessagePumpForIO::DoRunLoop(void)
[c:\b\slave\ps\build\src\base\message_pump_win.cc:445]

base::MessagePumpWin::RunWithDispatcher(Delegate::MessagePump::base
*,Dispatcher::MessagePumpWin::base *)
[c:\b\slave\ps\build\src\base\message_pump_win.cc:52]
             base::MessagePumpWin::Run(Delegate::MessagePump::base *)
[c:\b\slave\ps\build\src\base\message_pump_win.h:78]
             MessageLoop::RunInternal(void)
[c:\b\slave\ps\build\src\base\message_loop.cc:197]
             MessageLoop::RunHandler(void)
[c:\b\slave\ps\build\src\base\message_loop.cc:180]
             MessageLoop::Run(void)
[c:\b\slave\ps\build\src\base\message_loop.cc:154]
             base::Thread::ThreadMain(void)
[c:\b\slave\ps\build\src\base\thread.cc:156]
             ?A0xfe0e29d4::ThreadFunc(void *)
[c:\b\slave\ps\build\src\base\platform_thread_win.cc:26]


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