[Red391]

Доброго времени суток
Последние сутки постоянно происходит крах сервера
Debug log:

Код:

[debug] Server crashed due to an unknown error
[debug] Native backtrace:
[debug] #0 0016d5f9 in crashdetect::PrintNativeBacktrace () from plugins/crashdetect.so
[debug] #1 0016fcb9 in crashdetect::Crash () from plugins/crashdetect.so
[debug] #2 00175123 in ?? () from plugins/crashdetect.so
[debug] #3 00acc508 in ?? () from /lib/libc.so.6
[debug] #4 00b12356 in cfree () from /lib/libc.so.6
[debug] #5 00e3a2ce in my_no_flags_free () from /lib/libmysqlclient_r.so.15
[debug] #6 00e3d419 in free_root () from /lib/libmysqlclient_r.so.15
[debug] #7 00e5cd11 in free_rows () from /lib/libmysqlclient_r.so.15
[debug] #8 00e5d0c7 in mysql_free_result () from /lib/libmysqlclient_r.so.15
[debug] #9 00119801 in CMySQLHandler::FreeResult () from plugins/mysql.so
[debug] #10 0011c235 in CMySQLHandler::~CMySQLHandler () from plugins/mysql.so
[debug] #11 001221fc in Unload () from plugins/mysql.so
[debug] #12 080a1ceb in ?? () from ./sampsvr
[debug] #13 08077ccf in ?? () from ./sampsvr
[debug] #14 00ab76e5 in __libc_start_main () from /lib/libc.so.6
[debug] #15 0804b4c1 in __gxx_personality_v0 () from ./sampsvr

Что может вызывать подобные ошибки?