> On Mar 5, 2020, at 7:51 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> We still allocate a small shm block as a means of counting live backends
> (since the SysV spec includes an "nattch" count but mmap'd segments do
> not provide that info). Should only be ~50 bytes though.
I recreated the error so I could post it here:
ERROR 53100 (disk_full) could not resize shared memory segment "/PostgreSQL.935653392" to 1048576 bytes: No space left on device
So something is using shared memory, and wants 1MB chunks. What could that be?
This is on PG 11.7