Crash every 2~3 min linux 3.16 64bits

Hello,

I'm using Ubuntu 14.04 x86_64
kernel 3.16.0-31

RepetierHost is always crashing after 2~3 minutes.

Here is the output :

~/RepetierHost$ mono RepetierHost.exe
Rebuild object False
Stacktrace:


Native stacktrace:

    mono() [0x4b73d8]
    mono() [0x50f13b]
    mono() [0x423d22]
    /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7ff94ba64340]

Debug info from gdb:

Could not attach to process.  If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Opération non permise.
No threads.

=================================================================
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.
=================================================================

Abandon (core dumped)