Frank van Vugt <[EMAIL PROTECTED]> writes:
> Meanwhile, one of the application developers here bumped into a way to 
> reproduce what looks like the same memory alloc problem (exactly the same 
> point in exactly the same trigger) using our application software
> only,

Oh good.  Can you construct a self-contained test case then?

> Here are both the query-set and the corresponding backtrace.

The query set's not very interesting without a database to try it
against :-(

> I then got a firm set of results, all of which were looking like this:

> Hardware access (read/write) watchpoint 1: SerializableSnapshotData.xcnt
> Value = 1
> Hardware access (read/write) watchpoint 2: LatestSnapshotData.xcnt
> Value = 1

> All were located at sinval.c:888

This is the expected case.  The failure in CopySnapshot has got to
indicate that somebody set one or the other field to some bizarrely
large value, though.  I take it you didn't run the watchpointed backend
far enough to get the memory-alloc error?

                        regards, tom lane

---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
      joining column's datatypes do not match

Reply via email to