Comment # 12 on bug 1135550 from Konstantin Voinov

here backtrace from mc:

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7b4181a in pthread_rwlock_unlock () from /lib64/libpthread.so.0
(gdb) bt
#0  0x00007ffff7b4181a in pthread_rwlock_unlock () from /lib64/libpthread.so.0
#1  0x00007ffff773afb9 in CRYPTO_THREAD_unlock () from
/usr/lib64/libcrypto.so.1.1
#2  0x00007ffff76b2b98 in ERR_load_ERR_strings () from
/usr/lib64/libcrypto.so.1.1
#3  0x00007ffff76b3d29 in ?? () from /usr/lib64/libcrypto.so.1.1
#4  0x00007ffff76d1c29 in ?? () from /usr/lib64/libcrypto.so.1.1
#5  0x00007ffff7b439d7 in __pthread_once_slow () from /lib64/libpthread.so.0
#6  0x00007ffff773b009 in CRYPTO_THREAD_run_once () from
/usr/lib64/libcrypto.so.1.1
#7  0x00007ffff76d2113 in OPENSSL_init_crypto () from
/usr/lib64/libcrypto.so.1.1
#8  0x00007ffff76b323e in ERR_get_state () from /usr/lib64/libcrypto.so.1.1
#9  0x00007ffff76b3369 in ERR_clear_error () from /usr/lib64/libcrypto.so.1.1
#10 0x00007ffff76d1b19 in ?? () from /usr/lib64/libcrypto.so.1.1
#11 0x00007ffff7b439d7 in __pthread_once_slow () from /lib64/libpthread.so.0
#12 0x00007ffff773b009 in CRYPTO_THREAD_run_once () from
/usr/lib64/libcrypto.so.1.1
#13 0x00007ffff76d233b in OPENSSL_init_crypto () from
/usr/lib64/libcrypto.so.1.1
#14 0x00007ffff76413c8 in ?? () from /usr/lib64/libcrypto.so.1.1
#15 0x00007ffff76d1bb0 in ?? () from /usr/lib64/libcrypto.so.1.1
#16 0x00007ffff7b439d7 in __pthread_once_slow () from /lib64/libpthread.so.0
#17 0x00007ffff773b009 in CRYPTO_THREAD_run_once () from
/usr/lib64/libcrypto.so.1.1
#18 0x00007ffff76d2250 in OPENSSL_init_crypto () from
/usr/lib64/libcrypto.so.1.1
#19 0x00007ffff7ca8bd4 in libssh2_init () from /usr/lib64/libssh2.so.1
#20 0x000055555560dbdb in ?? ()
#21 0x00005555555b829f in ?? ()
#22 0x00005555555beaa7 in ?? ()
#23 0x00005555555761e6 in ?? ()
#24 0x00007ffff7994b7b in __libc_start_main () from /lib64/libc.so.6
#25 0x000055555557687a in ?? ()