[ubuntu-mono] [Bug 1293481] Re: asp.net 4.0 with apache does not seem to work on trusty

Wed May 14 11:45:48 UTC 2014

Zachary, shahid, thanks for your help.

The bug is truly easy to fix in the distribution:   Just change line 83
in the source file debian/mono-server4-update to use 4.5 instead of 4.0.
So now

Zachary, the problem you mention with the module installs - I have had
them, too (and also in ealier Ubuntu distros) but as the problem belongs
to a different source package (mod_mono), we should not discuss them
here.  I may write a report on that problem myself one day.

I attach a patch - almost an overkill - but maybe that will prompt
someone to verify the problem and solution and actually work the fix
into the distribution.

** Attachment added: "xsp_patch"
   https://bugs.launchpad.net/ubuntu/+source/xsp/+bug/1293481/+attachment/4112221/+files/xsp_patch

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https://bugs.launchpad.net/bugs/1293481

Title:
  asp.net 4.0 with apache does not seem to work on trusty

Status in “xsp” package in Ubuntu:
  Confirmed

Bug description:
  This is a sister-bug to #1292567 which reports a similar problem with
  asp.net 2.0.  I have created two different reports, because the faults
  manifests themselves very differently, depending on the asp.net
  version.

  I have created an extremely small ASP.NET application (attached as a
  tar file).

  When I run that against the apache server on "saucy salamander", using
  mono-server4, it runs just fine.

  When I run it against the apache server on the current beta of "trusty
  tahr", using mono-server4, the mono-server4 dies with a SIGABRT.  The
  client gets a "500" error and the mono process running
  /usr/lib/mono/4.5/mod-mono-server4.exe disappears from the system.

  Luckily there is a good description in the apache error log:

  Stacktrace:

    at <unknown> <0xffffffff>
    at Mono.WebServer.VPathToHost.CreateHost (Mono.WebServer.ApplicationServer,Mono.WebServer.WebSource) <0x0007b>
    at Mono.WebServer.ApplicationServer.GetApplicationForPath (string,int,string,bool) <0x0013f>
    at (wrapper remoting-invoke-with-check) Mono.WebServer.ApplicationServer.GetApplicationForPath (string,int,string,bool) <0xffffffff>
    at Mono.WebServer.ModMonoWorker.InnerRun (object) <0x0024f>
    at Mono.WebServer.ModMonoWorker.Run (object) <0x0001b>
    at (wrapper runtime-invoke) <Module>.runtime_invoke_void__this___object (object,intptr,intptr,intptr) <0xffffffff>

  Native stacktrace:

          /usr/bin/mono() [0x8105b4a]
          [0xb77bb40c]
          [0xb77bb424]
          /lib/i386-linux-gnu/libc.so.6(gsignal+0x46) [0xb75ba7e6]
          /lib/i386-linux-gnu/libc.so.6(abort+0x143) [0xb75bdc33]
          /usr/bin/mono() [0x8288b23]
          /usr/bin/mono() [0x8288bb3]
          /usr/bin/mono() [0x816b4d1]
          /usr/bin/mono(mono_class_get_full+0xff) [0x816bdff]
          /usr/bin/mono(mono_class_from_name+0x107) [0x816c237]
          /usr/bin/mono(mono_class_from_typeref+0x190) [0x816b9a0]
          /usr/bin/mono(mono_class_get_full+0x164) [0x816be64]
          /usr/bin/mono(mono_class_get+0x1f) [0x816bf4f]
          /usr/bin/mono(mono_metadata_parse_mh_full+0x45c) [0x81b29fc]
          /usr/bin/mono(mono_method_get_header+0xbf) [0x819130f]
          /usr/bin/mono() [0x807ff7c]
          /usr/bin/mono() [0x8066ccc]
          /usr/bin/mono() [0x8068de4]
          /usr/bin/mono() [0x8069aee]
          /usr/bin/mono() [0x8106d17]
          [0xb757903e]
          [0xb5816970]
          [0xb58167fc]
          [0xb5812aa8]
          [0xb58126c4]
          [0xb7466c9d]
          /usr/bin/mono() [0x8069bf0]

  Debug info from gdb:

  =================================================================
  Got a SIGABRT while executing native code. This usually indicates
  a fatal error in the mono runtime or one of the native libraries 
  used by your application.
  =================================================================

  So, as you see, the SIGABRT occurs in a basic mono runtime routine called from the mod-mono-server4.exe
  module.  Of course, I cannot know whether the bug that causes the abortion is in xsp or in basic mono.  But 
  any search after the bug would start in mod-mono-server4, so I chose to file the bug against that package.

  I have the same bug on my company's larger ASP.NET application.

  This report is not made from the "trusty" installation, that one is a
  test installation without access to the net, so you don't get all the
  stuff that apport would collect to you. Honestly, you don't need it to
  reproduce, just grab a pristine trusty installation and try it!

  However, a few important package versions:

  libapache2-mod-mono: 2.11+git20130708.6b73e85-4ubuntu1
  mono-complete: 3.2.8+dfsg-4ubuntu1
  mono-apache-server2: 3.0.11-1

  I am willing to offer any possible kind of assistance in fixing this
  problem - my company had looked forward to upgrade to "trusty". But,
  to be honest, I don't think you really need my help - the problem is
  so trivial to reproduce, it ought to be pretty trivial to fix if you
  know the ropes.

  best regards

  Peder Chr. Nørgaard

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