Thread: postgres crash

I work with Postgres Win 2000 using Cygwin

 

template1=# select version();
                          version
------------------------------------------------------------
 PostgreSQL 7.2 on i686-pc-cygwin, compiled by GCC 2.95.3-5

 

Sometime, the database crashes and I receive the folllwing log message:

 

 

DEBUG:  recycled transaction log file 000000000000008B
FATAL 2:  link from /usr/share/postgresql/data/pg_xlog/000000000000008B to /usr/
share/postgresql/data/pg_xlog/0000000000000093 (initialization of log file 0, se
gment 147) failed: Permission denied
DEBUG:  server process (pid 1408) exited with exit code 2
DEBUG:  terminating any other active server processes
NOTICE:& n bsp; Message from PostgreSQL backend:
        The Postmaster has informed me that some other backend
        died abnormally and possibly corrupted shared memory.
        I have rolled back the current transaction and am
        going to terminate your database system connection and exit.
        Please reconnect to the database system and repeat your query.
NOTICE:  Message from PostgreSQL backend:
        The Postmaster has informed me that some other backend
        died abnormally and possibly corrupted shared memory.
        I have rolled back the current transaction and am
        going to terminate your database system connec tion and exit.
        Please reconnect to the database system and repeat your query.
NOTICE:  Message from PostgreSQL backend:
        The Postmaster has informed me that some other backend
        died abnormally and possibly corrupted shared memory.
        I have rolled back the current transaction and am
        going to terminate your database system connection and exit.
        Please reconnect to the database system and repeat your query.
DEBUG:  all server processes terminated; reinitializing shared memory and semaph
ores
IpcMemoryCreate: shmget(key=5432001, size=1441792, 03600) failed: Not enough mem
ory

This error usually means that PostgreSQL's request for a shared
memory segment exceeded available mem ory or s w ap space.
To reduce the request size (currently 1441792 bytes), reduce
PostgreSQL's shared_buffers parameter (currently 64) and/or
its max_connections parameter (currently 32).

The PostgreSQL Administrator's Guide contains more information about
shared memory configuration.

 

I changed the shared_buffers and max_connections parameters, but the problem is not solved.

 

It is possible that my configuration is wrong ?

 

Thank you