Re: BUG #5984: Got FailedAssertion("!(opaque->btpo_prev == target)", File: "nbtpage.c", Line: 1166)

On Mon, May 16, 2011 at 8:04 AM, Pascal Borschneck
<borschneck@hotmail.com>wrote:

>  Hi Robert,
>
> Sorry for the late reply, I was not here last week.
>
> About your question: "*That's kind of surprising, but I can't help
> wondering if it's a bug in what virtualization tool you are using.*"
> I noticed the problem FIRST on VM.  And by pausing/stopping/launching a VM
> it was easy to get these error back.
>
> *But since some weeks*, I also had duplicates on real server.  And same
> result if I try to launch a VACUUM: crash with the same assertion.
> Which "*stack trace on the assertion failure*" do you want to have ?
>

Well, when a backend crashes, it would be helpful to know what was going on
when it crashed.  See this wiki page:

http://wiki.postgresql.org/wiki/Generating_a_stack_trace_of_a_PostgreSQL_backend

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company