On Wed, Sep 7, 2011 at 4:00 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
>> Excerpts from Robert Haas's message of mar sep 06 19:57:07 -0300 2011:
>>> TBH, I'm very unclear what could cause the postmaster to go belly-up
>>> copying a bounded amount of data out of shared memory for logging
>>> purposes only. It's surely possible to make the code safe against any
>>> sequence of bytes that might be found there.
>
>> A mishandled encoding conversion could be problematic, so that needs to
>> be carefully considered (perhaps just shut off unconditionally).
>
> That, and the question of exactly what makes the amount bounded, and
The fact that it's a fixed-size chunk of shmem. We won't copy more
bytes than the size of the buffer.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
