I wrote:
> "Kevin Grittner" <[EMAIL PROTECTED]> writes:
>> (gdb) p BufferDescriptors[781]
>> $1 = {tag = {rnode = {spcNode = 1663, dbNode = 16385, relNode = 2666},
>> blockNum = 1}, flags = 70, usage_count = 5, refcount = 4294967294,
>> wait_backend_pid = 748, buf_hdr_lock = 0 '\0', buf_id = 781, freeNext = -2,
>> io_in_progress_lock = 1615, content_lock = 1616}
> Whoa. refcount -2?
BTW, at this point your most helpful move would be to rebuild with
--enable-cassert (keeping --enable-debug) and go back to your current
test mix. The only place that decrements refcount has
Assert(refcount > 0), so it seems quite likely that you'll soon see
an assertion crash, and then getting a stack trace from that would
probably expose the culprit immediately. (Make sure you are running
the postmaster under ulimit -c unlimited so that you will get a core
dump file to trace...)
regards, tom lane
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TIP 5: don't forget to increase your free space map settings
