I looked in the log again and sure enough I missed this immediately
before the WARNINGS:

PANIC: link from /data/database/pg_xlog/00000001000000D9 to
/data/database/pg_xlog/00000001000000E1 (initialization of log file 1,
segment 225) failed: No such file or directory
LOG: server process (pid 5748) was terminated by signal 6
LOG: terminating any other active server processes

Looks like a file system problem right?

Medora


>
> > WARNING: Message from PostgreSQL backend:
> > The Postmaster has informed me that some other backend
> > died abnormally and possibly corrupted shared memory.
>
> This is bad, but it's unrelated to the other message, and you didn't
> show us the message that it *is* related to.
>
> regards, tom lane


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TIP 2: Don't 'kill -9' the postmaster