ddev snapshot fails when spx is enabled

[rfay]

If I do ddev spx on and then ddev snapshot I see

rfay@rfay-thinkbook:~/workspace/d11$ ddev snapshot
Creating database snapshot d11_20241126075220
Failed to create snapshot: composeCmd failed to run 'COMPOSE_PROJECT_NAME=ddev-d11 docker-compose -f /home/rfay/workspace/d11/.ddev/.ddev-docker-compose-full.yaml exec -T db bash -c set -eu && ( set -eu -o pipefail; mariabackup --backup --stream=mbstream --user=root --password=root --socket=/var/tmp/mysql.sock  2>/tmp/snapshot_d11_20241126075220-mariadb_10.11.gz.log | gzip > "/var/tmp/d11_20241126075220-mariadb_10.11.gz" )', action='[exec -T db bash -c set -eu && ( set -eu -o pipefail; mariabackup --backup --stream=mbstream --user=root --password=root --socket=/var/tmp/mysql.sock  2>/tmp/snapshot_d11_20241126075220-mariadb_10.11.gz.log | gzip > "/var/tmp/d11_20241126075220-mariadb_10.11.gz" )]', err='exit status 1', stdout='', stderr='', stdout=, stderr=
Failed to snapshot d11: composeCmd failed to run 'COMPOSE_PROJECT_NAME=ddev-d11 docker-compose -f /home/rfay/workspace/d11/.ddev/.ddev-docker-compose-full.yaml exec -T db bash -c set -eu && ( set -eu -o pipefail; mariabackup --backup --stream=mbstream --user=root --password=root --socket=/var/tmp/mysql.sock  2>/tmp/snapshot_d11_20241126075220-mariadb_10.11.gz.log | gzip > "/var/tmp/d11_20241126075220-mariadb_10.11.gz" )', action='[exec -T db bash -c set -eu && ( set -eu -o pipefail; mariabackup --backup --stream=mbstream --user=root --password=root --socket=/var/tmp/mysql.sock  2>/tmp/snapshot_d11_20241126075220-mariadb_10.11.gz.log | gzip > "/var/tmp/d11_20241126075220-mariadb_10.11.gz" )]', err='exit status 1', stdout='', stderr=''

However, if I turn it off, then snapshot succeeds.

The error in the listed log inside the db container is:

[00] FATAL ERROR: 2024-11-26 07:52:51 Was only able to copy log from 47024 to 14702510, not 28173623; try increasing innodb_log_file_size

It's not at all clear to me how this add-on can cause this behavior, but it's quite repeatable.