Снова Mono и снова GC

Stacktrace:
 
/proc/self/maps:
00400000-00843000 r-xp 00000000 09:01 6624094                            /usr/bin/mono-sgen
00a43000-00a49000 r--p 00443000 09:01 6624094                            /usr/bin/mono-sgen
00a49000-00a4f000 rw-p 00449000 09:01 6624094                            /usr/bin/mono-sgen
00a4f000-00ae0000 rw-p 00000000 00:00 0
013ac000-01c3a000 rw-p 00000000 00:00 0                                  [heap]
4040e000-4041e000 rwxp 00000000 00:00 0
406d4000-40847000 rwxp 00000000 00:00 0
7f9073112000-7f907311b000 ---p 00000000 00:00 0
7f907311b000-7f9073313000 rw-p 00000000 00:00 0
7f9073313000-7f907331c000 ---p 00000000 00:00 0
7f907331c000-7f9073514000 rw-p 00000000 00:00 0
7f9073514000-7f907351d000 ---p 00000000 00:00 0
7f907351d000-7f9073715000 rw-p 00000000 00:00 0
7f9073715000-7f907371e000 ---p 00000000 00:00 0
7f907371e000-7f9073916000 rw-p 00000000 00:00 0
7f9073916000-7f907391f000 ---p 00000000 00:00 0
7f907391f000-7f9073b17000 rw-p 00000000 00:00 0
7f9073b17000-7f9073b20000 ---p 00000000 00:00 0
7f9073b20000-7f9073d18000 rw-p 00000000 00:00 0
7f9073d18000-7f9073d21000 ---p 00000000 00:00 0
7f9073d21000-7f9073f19000 rw-p 00000000 00:00 0
7f9073f19000-7f9073f22000 ---p 00000000 00:00 0
7f9073f22000-7f907411a000 rw-p 00000000 00:00 0
7f907411a000-7f9074123000 ---p 00000000 00:00 0
7f9074123000-7f907431b000 rw-p 00000000 00:00 0
Memory around native instruction pointer (0x6b6f20):
0x6b6f10  48 83 c2 23 48 83 e2 fc 48 8d 04 ca c3 0f 1f 00  H..#H...H.......
0x6b6f20  48 8b 47 08 48 89 c2 83 e2 05 48 83 fa 01 74 20  H.G.H.....H...t
0x6b6f30  48 83 f8 0f 74 2a 48 89 c2 83 e2 07 48 83 fa 05  H...t*H.....H...
0x6b6f40  74 2e 48 8b 3f e9 76 ff ff ff 66 0f 1f 44 00 00  t.H.?.v...f..D..
 
Native stacktrace:
 
        mono-sgen() [0x52018b]
        mono-sgen() [0x520488]
        mono-sgen() [0x4b407f]
        mono-sgen() [0x432ff2]
        /lib/x86_64-linux-gnu/libpthread.so.0(+0x11390) [0x7f98822d8390]
        mono-sgen() [0x6b6f20]
        mono-sgen() [0x6b7eed]
        mono-sgen() [0x6ba1e7]
        mono-sgen() [0x6bd2e1]
        mono-sgen() [0x6ad8fd]
        mono-sgen() [0x68e40c]
        [0x406d674d]
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Entering thread summarizer pause from 0x7f91012dd700
Finished thread summarizer pause from 0x7f91012dd700.
 
Waiting for dumping threads to resume
 
 
Debug info from gdb:
 
mono_gdb_render_native_backtraces not supported on this platform, unable to find gdb or lldb
 
=================================================================
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.
=================================================================
 
Aborted

Mono JIT compiler version 5.18.0.240 (tarball Wed Jan 16 09:13:03 UTC 2019)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
        TLS:           __thread
        SIGSEGV:       altstack
        Notifications: epoll
        Architecture:  amd64
        Disabled:      none
        Misc:          softdebug
        Interpreter:   yes
        LLVM:          yes(600)
        Suspend:       preemptive
        GC:            sgen (concurrent by default)