MySQL(4.0.16)이 자꾸 죽습니다. -_- 에러가...

며칠전부터 mysql이 자꾸 죽네요. +_+
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로그 크기나 기타 등등을 살펴봤는데도, 이상은 없는듯 한데요,
..
파일시스템도 여유 있고요,
..
아래 로그가 남아 있네요,,

현재 4.0.16 이고 아파치는 2.0.x 입니다.. +_+ php 는 4.3.6이구요. +_+
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에러중 일부를 가지고 구글링 해봐도 별 아웃풋은 못찾겠습니다. ㅡㅜ
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비슷한 경험 있으신 분들의 조언 부탁드릴께요. +_+/
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mysqld got signal 10;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help diagnose
the problem, but since we have already crashed, something is definitely wrong
and this may fail.

key_buffer_size=8388600
read_buffer_size=131072
max_used_connections=1
max_connections=100
threads_connected=2
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 225791 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

-e
Number of processes running now: 0
060912 02:39:35 mysqld restarted
/usr/local/mysql/libexec/mysqld: Out of memory (Needed 32704 bytes)
/usr/local/mysql/libexec/mysqld: Can't read dir of '/var/tmp/' (Errcode: 11)
InnoDB: Fatal error: cannot allocate 440000 bytes of
InnoDB: memory with malloc! Total allocated memory
InnoDB: by InnoDB 264 bytes. Operating system errno: 11
InnoDB: Cannot continue operation!
InnoDB: Check if you should increase the swap file or
InnoDB: ulimits of your operating system.
InnoDB: On FreeBSD check you have compiled the OS with
InnoDB: a big enough maximum process size.
InnoDB: We now intentionally generate a seg fault so that
InnoDB: on Linux we get a stack trace.
mysqld got signal 11;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help diagnose
the problem, but since we have already crashed, something is definitely wrong
and this may fail.

key_buffer_size=8388600
read_buffer_size=131072
max_used_connections=0
max_connections=100
threads_connected=0
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 225791 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

060912 02:39:37 mysqld ended