Comment #1 on issue 4749 by [EMAIL PROTECTED]: Crash in
ResourceDispatcherHost::RemovePendingRequest on browser shutdown.
http://code.google.com/p/chromium/issues/detail?id=4749
It seems that we crashed while computing iter->second:
void ResourceDispatcherHost::RemovePendingRequest(
const PendingRequestList::iterator& iter) {
// Notify the login handler that this request object is going away.
ExtraRequestInfo* info = ExtraInfoForRequest(iter->second); <=== HERE
if (info && info->login_handler)
info->login_handler->OnRequestCancelled();
delete iter->second;
pending_requests_.erase(iter);
// If we have no more pending requests, then stop the load state monitor
if (pending_requests_.empty())
update_load_states_timer_.Stop();
}
chrome_2670000!ResourceDispatcherHost::RemovePendingRequest:
02751390 55 push ebp
02751391 8bec mov ebp,esp
02751393 83ec08 sub esp,8
02751396 53 push ebx
02751397 56 push esi
02751398 8b7508 mov esi,dword ptr [ebp+8]
0275139b c745fc00000000 mov dword ptr [ebp-4],0
027513a2 833e00 cmp dword ptr [esi],0
027513a5 8bd9 mov ebx,ecx
027513a7 7505 jne
chrome_2670000!ResourceDispatcherHost::RemovePendingRequest+0x1e (027513ae)
027513a9 e887f84600 call chrome!normTrie_data32+0x2c4f (0046f887)
027513ae 8b06 mov eax,dword ptr [esi]
027513b0 8b4e04 mov ecx,dword ptr [esi+4]
027513b3 3b4804 cmp ecx,dword ptr [eax+4]
027513b6 7505 jne
chrome_2670000!ResourceDispatcherHost::RemovePendingRequest+0x2d (027513bd)
027513b8 e878f84600 call chrome!normTrie_data32+0x2c40 (0046f878)
027513bd 8b5604 mov edx,dword ptr [esi+4] <=== HERE
027513c0 8b4214 mov eax,dword ptr [edx+14h]
027513c3 8b80cc010000 mov eax,dword ptr [eax+1CCh]
027513c9 85c0 test eax,eax
027513cb 7412 je
chrome_2670000!ResourceDispatcherHost::RemovePendingRequest+0x4f (027513df)
027513cd 83780c00 cmp dword ptr [eax+0Ch],0
027513d1 740c je
chrome_2670000!ResourceDispatcherHost::RemovePendingRequest+0x4f (027513df)
027513d3 8b400c mov eax,dword ptr [eax+0Ch]
027513d6 8b10 mov edx,dword ptr [eax]
027513d8 8bc8 mov ecx,eax
027513da 8b4208 mov eax,dword ptr [edx+8]
027513dd ffd0 call eax
Perhaps the caller passed in an invalid 'iter':
void ResourceDispatcherHost::CancelRequestsForRenderView(
...
// Remove matches.
for (size_t i = 0; i < matching_requests.size(); ++i) {
PendingRequestList::iterator iter =
pending_requests_.find(matching_requests[i]);
DCHECK(iter != pending_requests_.end());
RemovePendingRequest(iter); <=== HERE
}
}
Perhaps 'iter' was pending_requests_.end(). One thing we can
try is to change that DCHECK to CHECK.
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