any body using Solaris8 with postgresql 7.3.3

Hi, all,

    I've met a wierd problem on a Solaris 8/sparc box with postgresql 7.3.3:

    the server would automatically shutdown after a period of time of not
    operating. The log show something like this:

    pmdie 2

    anybody using this combo ever met this kind of problem?

    Any help would be very appreciated.

    Thanks and regards

Laser