On Mon, Aug 3, 2020 at 2:35 PM Alvaro Herrera <alvherre@xxxxxxxxxxxxxxx> wrote: > You can use pageinspect's page_header() function to obtain the page's > LSN. You can use dd to obtain the page from the file, > > dd if=16605/16613/60529051 bs=8192 count=1 seek=6501 of=/tmp/page.6501 Ben might find this approach to dumping out a single page image easier, since it doesn't involve relfilenodes or filesystem files: https://wiki.postgresql.org/wiki/Getting_a_stack_trace_of_a_running_PostgreSQL_backend_on_Linux/BSD#contrib.2Fpageinspect_page_dump -- Peter Geoghegan
