Strange crash for application linked to cygwin libraries.

[Peter Ross]

On Wed, Oct 15, 2008 at 5:50 AM, Mark Geisert <mark@X> wrote:
> Peter Ross writes:
>> On Wed, Oct 15, 2008 at 12:18 PM, Mark Geisert <XXXXXXXXXXXXXXXX> wrote:
>
> Please don't quote raw email addresses in your emails to the list.
>
Sorry about that, been awhile since I've been on a mailing list.

>> >> I've written an application which does some initialization and then
>> >> does a tcp accept.  5 minutes and 20 seconds give or take after doing
>> >> the tcp.accept the application aborts with exit code 0.  If I
>> >> continually send tcp data to this application then the crash doesn't
>> >> occur, it is only after 5 minutes and 20 seconds of waiting for I/O.
>> > [...]
>> >> Here is the complete list of libraries that I use  -lodbc32 -lole32
>> >> -lraptor -lxslt -lcurl -lz -lxml2 -ldb -lssl -lcrypto -lexpat
>> >> -lwsock32
>> >
>> > You haven't supplied the canonical problem report info as requested in...
>> >
>> >> Problem reports:       <http://cygwin.com/problems.html>
>
> That was a hint :-).  Please supply that info, specifically the output of
>    cygcheck -s -v -r
> but *as an attachment* to your next email.
>
Find attached.

>> > ...so only WAGs come to mind:  Try it without using wsock32.  Cygwin has its
>> > own implementation of the TCP/IP networking functions and there might be
>> > unpleasant mixing of semantics when wsock32 is explicitly linked in.
>> >
>> Thanks for the WAG, unfortunately it didn't work.
>
> Are all of those libraries you're linking with compiled for Cygwin?  Mixing
> Cygwin libs with non-Cygwin libs won't work.
>
Yes they are all cygwin libraries.

> Another thing that might prove informative is running cygcheck on the
> executable to see its tree of library dependencies.  Maybe wsock32 snuck back
> in somehow.
>
$ cygcheck.exe ./wos_server.exe
.\wos_server.exe
  C:\cygwin\bin\cygcrypto-0.9.8.dll
    C:\cygwin\bin\cygwin1.dll
      C:\WINDOWS\system32\ADVAPI32.DLL
        C:\WINDOWS\system32\ntdll.dll
        C:\WINDOWS\system32\KERNEL32.dll
        C:\WINDOWS\system32\RPCRT4.dll
          C:\WINDOWS\system32\Secur32.dll
  C:\cygwin\bin\cygcurl-4.dll
    C:\cygwin\bin\cygssh2-1.dll
      C:\cygwin\bin\cygz.dll
    C:\cygwin\bin\cygssl-0.9.8.dll
  C:\cygwin\bin\cygdb-4.5.dll
  C:\cygwin\bin\cygexpat-1.dll
  C:\cygwin\bin\cygxml2-2.dll
    C:\cygwin\bin\cygiconv-2.dll
  C:\cygwin\bin\cygxslt-1.dll
  C:\WINDOWS\system32\ODBC32.dll
    C:\WINDOWS\system32\msvcrt.dll
    C:\WINDOWS\system32\COMCTL32.dll
      C:\WINDOWS\system32\GDI32.dll
        C:\WINDOWS\system32\USER32.dll
    C:\WINDOWS\system32\SHELL32.dll
      C:\WINDOWS\system32\SHLWAPI.dll
    C:\WINDOWS\system32\comdlg32.dll
  C:\WINDOWS\system32\OLE32.dll

So I am using the ODBC and OLE32 for access to CreateGUID, I don't
think these are a problem, but I could be wrong.
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