[Mono-bugs] [Bug 437391] New: SIGSEGV fatal error in mono run-time

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Tue Oct 21 12:29:32 EDT 2008


           Summary: SIGSEGV fatal error in mono run-time
           Product: Mono: Runtime
           Version: 2.0
          Platform: x86
        OS/Version: openSUSE 11.0
            Status: NEW
          Severity: Blocker
          Priority: P5 - None
         Component: io-layer
        AssignedTo: dick at novell.com
        ReportedBy: mhorsley at vqlive.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: Community User

mono 2.0 on VMWARE image.

please see attached stack trace('f'). exception happens in the
"WaitForResponse" method (at the end of the 'f' attachment) which i've
extracted from the project. Code establishes a socket connection to a remote
windows server; XML command is sent over the NetworkStream; the response XML is
loaded into a xPathDocument (via a streamreader/Xmltextreader and having been
converted to ASCII).

The application is acting as a server; when running with just one client, it
works fine and will handle thousands of requests. the exception occurs if i run
2 clients (and happens very quickly and is reproducable). the server
application is only processing one request at a time so i dont see immediately
how this might be concurrency related issue but suspect thats what the problem
is. the code has been run on earlier (1.9 and earlier) versions of mono and
didnt suffer from this problem.

to reproduce this problem, i could make the source code for the server and the
test application available. i could then arrange to have our firewall opened to
allow it to connect to a test system here.

i've looked thru the known error lists and this looks superficially similar to
bug 394207.

thanks in advance

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