with the new 171010-1400 Windows build and Visual Studio Update 4 my previously working config went haywire. As I see from the windbg output, somehow iisexpress.exe fails on the first or the second request, I guess it is in connection with setting a cookie. All I see from the debug is the following:
ModLoad: 00007ff9`417a0000 00007ff9`417cb000 C:\WINDOWS\system32\dwmapi.dll
18312 w3wphost!W3WP_HOST::IncrementMessages [w3wphost.cxx @ 4073]:IncrementMessages called
(4a30.4788): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files\IIS Express\IISUTIL2.dll -
IISUTIL2!IsLocalRequest+0x2e:
00007ff9`02766d5e 0fb702 movzx eax,word ptr [rdx] ds:00000000`00000000=????
Where can I get more information about this IsLocalRequest call? I guess IISExpress.exe is not open source.
Update1: I think the IISUTIL dll is not on the symbols server:
BGHELP: ntdll - public symbols
c:\temp\localsymbols\ntdll.pdb\186E113737814D3E2749831F5FE67D621\ntdll.pdb
Symbol search path is: SRV*c:\temp\localsymbols*http://msdl.microsoft.com/download/symbols
Expanded Symbol search path is: srv*c:\temp\localsymbols*http://msdl.microsoft.com/download/symbols
************* Symbol Path validation summary **************
Response Time (ms) Location
Deferred SRV*c:\temp\localsymbols*http://msdl.microsoft.com/download/symbols
SYMSRV: BYINDEX: 0x16
c:\temp\localsymbols*http://msdl.microsoft.com/download/symbols
iisutil2.pdb
AA5E50675E9E42B0950F0C58B916E2671
SYMSRV: UNC: c:\temp\localsymbols\iisutil2.pdb\AA5E50675E9E42B0950F0C58B916E2671\iisutil2.pdb - path not found
SYMSRV: UNC: c:\temp\localsymbols\iisutil2.pdb\AA5E50675E9E42B0950F0C58B916E2671\iisutil2.pd_ - path not found
SYMSRV: UNC: c:\temp\localsymbols\iisutil2.pdb\AA5E50675E9E42B0950F0C58B916E2671\file.ptr - path not found
SYMSRV: HTTPGET: /download/symbols/iisutil2.pdb/AA5E50675E9E42B0950F0C58B916E2671/iisutil2.pdb
SYMSRV: HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
SYMSRV: HTTPGET: /download/symbols/iisutil2.pdb/AA5E50675E9E42B0950F0C58B916E2671/iisutil2.pd_
SYMSRV: HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
SYMSRV: HTTPGET: /download/symbols/iisutil2.pdb/AA5E50675E9E42B0950F0C58B916E2671/file.ptr
SYMSRV: HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
SYMSRV: RESULT: 0x80190194
DBGHELP: C:\Program Files\IIS Express\iisutil2.pdb - file not found
DBGHELP: iisutil2.pdb - file not found
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files\IIS Express\IISUTIL2.dll -
DBGHELP: IISUTIL2 - export symbols
According to Microsoft (https://github.com/Microsoft/dotnet/issues/523): 1) this is a known regression in httpd.sys, soon to be fixed in a developer build 2) IIS Express pdbs will not be published, it's a "conscious decision" on their side