[Mono-dev] SGen stability

[Rodrigo Kumpera]

First, make sure you have symbols and gdb installed. Then, please, file a
bug report with all details and
a test case if possible.

Sgen bugs are very very hard to come by and every harder to reproduce. If
you have it in your hands please
help us nail it.


On Mon, Nov 5, 2012 at 7:16 AM, Roope Kangas <roope at grandcrugames.com>wrote:

> Hi!
>
> I am working on a MMO game thats written in C#. We are currently running
> load tests on mono 3.0.0 in linux environment.
>
> I have noticed a few times that when we cause a spike the amount of
> threads we run the server sometimes crashes with the following output:
>
> Native stacktrace:
>
>         mono-sgen() [0x498441]
>         mono-sgen() [0x4ec2df]
>         mono-sgen() [0x41c217]
>         /lib64/libpthread.so.0(+0xf500) [0x7fd5a1257500]
>         mono-sgen(mono_class_is_assignable_from+0x30) [0x4ff070]
>         mono-sgen(mono_object_isinst+0x3d) [0x57033d]
>         mono-sgen() [0x463c88]
>         [0x40216c3e]
>
> Debug info from gdb:
>
>
> =================================================================
> Got a SIGSEGV while executing native code. This usually indicates
> a fatal error in the mono runtime or one of the native libraries
> used by your application.
> =================================================================
>
>  Any ideas on what to do? This kind of behaviour does not occur with Boehm
> GC.
>
> --
> Roope
> Lead Server Developer
> Grand Cru Games
> http://www.grandcrugames.com
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>
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