BUG #5682: Postgres Service crashes with exception 0xC0000135

The following bug has been logged online:

Bug reference: 5682
Logged by: Aswin J
Email address: jayaswin(at)gmail(dot)com
PostgreSQL version: 8.3.7
Operating system: Windows
Description: Postgres Service crashes with exception 0xC0000135
Details:

I encounter a Postgres crash very frequently on my Windows Box.The postgres
log says

2010-09-27 10:33:30 IST LOG: server process (PID 22656) was terminated by
exception 0xC0000135
2010-09-27 10:33:30 IST HINT: See C include file "ntstatus.h" for a
description of the hexadecimal value.
.
.
2010-09-27 10:33:55 IST FATAL: the database system is in recovery mode
2010-09-27 10:33:55 IST LOG: all server processes terminated;
reinitializing
2010-09-27 10:33:56 IST FATAL: pre-existing shared memory block is still in
use
2010-09-27 10:33:56 IST HINT: Check if there are any old server processes
still running, and terminate them.

Any reason/fix for this?

Thanks,
Aswin