From 7f7d0396dd4b0c9e1f2b6a8eddfdb8afe561a93d Mon Sep 17 00:00:00 2001
From: Tino Reichardt <milky-zfs@mcmilk.de>
Date: Thu, 3 Oct 2024 20:42:25 +0200
Subject: [PATCH] ZTS: Fix summary page creation

There are cases, where some needed files for the summary page aren't
created. Currently the whole Summary Page creation will fail then.
Sample run: https://github.com/openzfs/zfs/actions/runs/11148248072/job/30999748588

Fix this, by properly checking for existence of the needed files.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <robn@despairlabs.com>
Signed-off-by: Tino Reichardt <milky-zfs@mcmilk.de>
Closes #16599
---
 .github/workflows/scripts/qemu-6-tests.sh     | 31 ++++++++++++++++++-
 .../workflows/scripts/qemu-9-summary-page.sh  |  2 ++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/scripts/qemu-6-tests.sh b/.github/workflows/scripts/qemu-6-tests.sh
index 2f023198bbf6..0d6a81765f89 100755
--- a/.github/workflows/scripts/qemu-6-tests.sh
+++ b/.github/workflows/scripts/qemu-6-tests.sh
@@ -85,15 +85,44 @@ case "$1" in
     sudo mv -f /tmp/*.txt /var/tmp
     sudo -E modprobe zfs
     TDIR="/usr/share/zfs"
+
+    # Enable swap to mitigate some OOM conditions like:
+    # https://github.com/openzfs/zfs/issues/16566
+    #
+    # Directions for setting up swap on btrfs (Fedora) from:
+    # https://btrfs.readthedocs.io/en/latest/Swapfile.html
+    echo "setting up swap"
+    if ! sudo truncate -s 0 /swapfile &> /dev/null ; then
+        echo "truncate failed"
+    fi
+
+    if !  sudo chattr +C /swapfile &> /dev/null ; then
+        echo "chattr failed"
+    fi
+
+    if !  sudo fallocate -l 16G /swapfile &> /dev/null ; then
+        echo "fallocate failed"
+    fi
+    if ! sudo chmod 0600 /swapfile &> /dev/null ; then
+        echo "chmod failed"
+    fi
+    if !  sudo mkswap /swapfile &> /dev/null ; then
+        echo "mkswap failed"
+    fi
+
+    if !  sudo swapon /swapfile &> /dev/null ; then
+        echo "Swapon failed"
+    fi
     ;;
 esac
 
 # run functional testings and save exitcode
 cd /var/tmp
-TAGS=$2/$3
+# TAGS=$2/$3
 if [ "$4" == "quick" ]; then
   export RUNFILES="sanity.run"
 fi
+TAGS=raidz
 sudo dmesg -c > dmesg-prerun.txt
 mount > mount.txt
 df -h > df-prerun.txt
diff --git a/.github/workflows/scripts/qemu-9-summary-page.sh b/.github/workflows/scripts/qemu-9-summary-page.sh
index 2f4c21f9910a..cae287ac1073 100755
--- a/.github/workflows/scripts/qemu-9-summary-page.sh
+++ b/.github/workflows/scripts/qemu-9-summary-page.sh
@@ -11,10 +11,12 @@ function output() {
 }
 
 function outfile() {
+  test -s "$1" || return
   cat "$1" >> "out-$logfile.md"
 }
 
 function outfile_plain() {
+  test -s "$1" || return
   output "<pre>"
   cat "$1" >> "out-$logfile.md"
   output "</pre>"