Adam Witney <awitney@sgul.ac.uk> writes:
> On 19/8/05 5:27 pm, "Tom Lane" <tgl@sss.pgh.pa.us> wrote:
>> In theory that should always work. What PG version is this? Can you
>> attach to the stuck backend with gdb and get a stack trace?
> Am not particularly familiar with gdb, but if you tell me the steps I will
> do it and report back
Think I've posted this before, but:
Determine PID of backend you are interested in, eg with ps
As postgres user, do
$ gdb /path/to/postgres-executable PID-of-process
gdb prints a bunch of junk
gdb> bt
... copy and paste the output given here ...
gdb> quit
gdb: ok to detach? y
$
If you get a pile of purely numeric output from bt, it's useless
(means you're running symbol-stripped executables). I'm hoping
for at least some function names.
regards, tom lane
