Re: Stack overflow issue - Mailing list pgsql-hackers

On Wed, Aug 24, 2022 at 7:12 PM Richard Guo <guofenglinux@gmail.com> wrote:

On Wed, Aug 24, 2022 at 6:49 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:

On 2022-Aug-24, mahendrakar s wrote:

> Hi,
> Can we have a parameter to control the recursion depth in these cases to
> avoid crashes?

We already have one (max_stack_depth).  The problem is lack of calling
the control function in a few places.

 

Thanks Egor and Alexander for the work! I think we can just add
check_stack_depth checks in these cases.

 

Attached adds the checks in these places. But I'm not sure about the
snowball case. Can we edit src/backend/snowball/libstemmer/*.c directly?

Thanks
Richard