[Mono-dev] Bugs

Jerod Venema jerod.venema at frozenmountain.com
Fri Jul 17 02:07:35 UTC 2015

Hey guys,

I've got a bit of a sticky error. I don't have any native code in this
particular application, but what I'm seeing is after some time of running
(this is a server-side app running via upstart on Ubuntu), I get this nasty

* Assertion at metadata.c:965, condition `idx < t->rows' not met


  at <unknown> <0xffffffff>
  at (wrapper managed-to-native)
(intptr,System.Reflection.MemberInfo) <0xffffffff>
  at System.Reflection.MonoMethodInfo.GetParametersInfo
(intptr,System.Reflection.MemberInfo) <0x00011>
  at System.Reflection.MonoMethod.GetParametersInternal () <0x00013>
  at System.Exception.GetFullNameForStackTrace
(System.Text.StringBuilder,System.Reflection.MethodBase) <0x0002d>
  at System.Exception.AddFrames
  at System.Exception.get_StackTrace () <0x00158>
  at System.Exception.ToString () <0x000fc>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_object__this__
(object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

        mono() [0x4b20bc]
        /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd05dd3b340]
        /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x39) [0x7fd05d99ccc9]
        /lib/x86_64-linux-gnu/libc.so.6(abort+0x148) [0x7fd05d9a00d8]
        mono() [0x6294f9]
        mono() [0x629707]
        mono() [0x629856]
        mono(mono_metadata_decode_row+0xd3) [0x55d503]
        mono(mono_method_get_param_names+0x224) [0x546ec4]
        mono() [0x5c5294]

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.

Anyone have any suggestions on what might be causing this or something I
can do to avoid it?

Jerod Venema

*Frozen Mountain Software*
919-300-5141 (United States)
604-227-2453 (Canada)
888-379-6686 (Toll Free)
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