diff --git a/.github/jobs/baseinstall.sh b/.github/jobs/baseinstall.sh
index 2c61bc2a7b..9123500eb5 100755
--- a/.github/jobs/baseinstall.sh
+++ b/.github/jobs/baseinstall.sh
@@ -64,6 +64,7 @@ mysql_root "show databases"
 mysql_root "SELECT CURRENT_USER();"
 mysql_root "SELECT USER();"
 mysql_root "SELECT user,host FROM mysql.user"
+mysql_root "SET max_allowed_packet=1073741824"
 echo "unused:sqlserver:domjudge:domjudge:domjudge:3306" > /opt/domjudge/domserver/etc/dbpasswords.secret
 mysql_user "SELECT CURRENT_USER();"
 mysql_user "SELECT USER();"
diff --git a/.github/workflows/chroot-checks.yml b/.github/workflows/chroot-checks.yml
index 7dc3901121..f3ebd6609c 100644
--- a/.github/workflows/chroot-checks.yml
+++ b/.github/workflows/chroot-checks.yml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   check-chroot-arch:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     container:
       image: domjudge/gitlabci:24.04
       options: --privileged --cgroupns=host --init
diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index e9d9d0c651..47a4b18d6a 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -36,6 +36,7 @@ jobs:
           cat /proc/cpuinfo
       - name: pstree
         run: pstree -p
+      - run: apt update; apt install -y docker.io
       - name: Install DOMjudge
         run: .github/jobs/baseinstall.sh all
       - name: Set up chroot
@@ -88,6 +89,13 @@ jobs:
         with:
           name: DB-dump
           path: /tmp/db.sql
+      - name: Get SQL logs
+        run: docker logs "${{ job.services.sqlserver.id }}"
+      - name: Collect docker logs on failure
+        if: ${{ !cancelled() }}
+        uses: jwalton/gh-docker-logs@v1
+        with:
+          dest: '/tmp/docker-logs'
       - name: Upload all logs/artifacts
         if: ${{ !cancelled() }}
         uses: actions/upload-artifact@v4
@@ -96,6 +104,8 @@ jobs:
           path: |
             /var/log/nginx
             /opt/domjudge/domserver/webapp/var/log/*.log
+            /tmp/docker-logs
+            /tmp/artifacts
       - name: Verifying submissions
         shell: bash
         run: |