diff --git a/.github/workflows/GnuTests.yml b/.github/workflows/GnuTests.yml
index 55c57080821..22077b5ff7f 100644
--- a/.github/workflows/GnuTests.yml
+++ b/.github/workflows/GnuTests.yml
@@ -1,6 +1,6 @@
 name: GnuTests
 
-# spell-checker:ignore (abbrev/names) CodeCov gnulib GnuTests Swatinem
+# spell-checker:ignore (abbrev/names) CodeCov gnulib GnuTests Swatinem tmpfs
 # spell-checker:ignore (jargon) submodules devel
 # spell-checker:ignore (libs/utils) autopoint chksum getenforce gperf lcov libexpect limactl pyinotify setenforce shopt texinfo valgrind libattr libcap taiki-e
 # spell-checker:ignore (options) Ccodegen Coverflow Cpanic Zpanic
@@ -115,6 +115,16 @@ jobs:
         cd 'uutils'
         env PROFILE=release-small bash util/build-gnu.sh
 
+    ### Test environment setup
+    - name: Setup specific GNU tests environment
+      shell: bash
+      run: |
+        # for tac/tac-continue test
+        export FULL_PARTITION_TMPDIR=/mnt/full_partition
+        sudo mount --mkdir=0777 --types tmpfs --options size=1M tmpfs $FULL_PARTITION_TMPDIR
+        dd if=/dev/zero of=$FULL_PARTITION_TMPDIR/data bs=1M count=1
+        echo "FULL_PARTITION_TMPDIR=$FULL_PARTITION_TMPDIR" >> $GITHUB_ENV
+
     ### Run tests as user
     - name: Run GNU tests
       shell: bash
diff --git a/util/gnu-patches/series b/util/gnu-patches/series
index 5fb1398cd17..f04bf77f1ab 100644
--- a/util/gnu-patches/series
+++ b/util/gnu-patches/series
@@ -10,4 +10,5 @@ tests_sort_merge.pl.patch
 tests_tsort.patch
 tests_du_move_dir_while_traversing.patch
 test_mkdir_restorecon.patch
+tests_tac_continue.patch
 error_msg_uniq.diff
diff --git a/util/gnu-patches/tests_tac_continue.patch b/util/gnu-patches/tests_tac_continue.patch
new file mode 100644
index 00000000000..d530ed58268
--- /dev/null
+++ b/util/gnu-patches/tests_tac_continue.patch
@@ -0,0 +1,24 @@
+Index: gnu/tests/tac/tac-continue.sh
+===================================================================
+--- gnu.orig/tests/tac/tac-continue.sh
++++ gnu/tests/tac/tac-continue.sh
+@@ -59,11 +59,17 @@ seq 5 > in
+
+ # Give tac a fifo command line argument.
+ # This makes it try to create a temporary file in $TMPDIR.
++
++# uutils does not create this temporary file in $TMPDIR, so the expected result is different
++# there is just no difference from normal operation
++# that means tac returns with success and the expected output the reverse of inputs
++
+ mkfifo_or_skip_ fifo
+ seq 1000 > fifo & pid=$!
+-TMPDIR=$FULL_PARTITION_TMPDIR tac fifo in >out 2>err && fail=1
++TMPDIR=$FULL_PARTITION_TMPDIR tac fifo in >out 2>err || fail=1
+
+-cat <<\EOF > exp || framework_failure_
++seq 1000 -1 1 > exp || framework_failure_
++cat <<\EOF >> exp || framework_failure_
+ 5
+ 4
+ 3
diff --git a/util/why-skip.md b/util/why-skip.md
index f179a58bb1c..647bc06dbf4 100644
--- a/util/why-skip.md
+++ b/util/why-skip.md
@@ -35,9 +35,6 @@
 = timeout returned 142. SIGALRM not handled? =
 * tests/misc/timeout-group.sh
 
-= FULL_PARTITION_TMPDIR not defined =
-* tests/misc/tac-continue.sh
-
 = can't get window size =
 * tests/misc/stty-row-col.sh