From: Christian Goeschel Ndjomouo <cgoesc2@wgu.edu>
Date: Sat, 4 Apr 2026 18:29:55 +0000 (-0400)
Subject: tests: skip SIGRTMAX check on s390x/QEMU
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a24589a0734e20dc4c27604fdebfa51c3e19c029;p=thirdparty%2Futil-linux.git

tests: skip SIGRTMAX check on s390x/QEMU

The CI fails the kill/name_to_number test when SIGRTMAX-0 (64)
is checked for s390x packaging. Although SIGRTMAX is a valid
signal number, kill(2) still returns EINVAL. This seems to be
related to the fact that QEMU reserves a signal number from
the high real-time signal range for internal usage, which
limits the maximum real-time signal number range.

We already check for the QEMU_USER environment variable, let us
also check if the QEMU emulator is mapped in memory for PID 1
to get more reliable information. In addition to that lets skip
RTMAX checks on s390x and QEMU emulated environments.

Signed-off-by: Christian Goeschel Ndjomouo <cgoesc2@wgu.edu>
---

diff --git a/tests/functions.sh b/tests/functions.sh
index 4a00463a8..2569a5877 100644
--- a/tests/functions.sh
+++ b/tests/functions.sh
@@ -176,11 +176,20 @@ function ts_skip_capability {
 }
 
 function ts_skip_qemu_user {
-	if [ "$QEMU_USER" == "1" ]; then
+	if [ "$QEMU_USER" == "1" ] || grep -q 'qemu-' /proc/1/smaps &>/dev/null; then
 		ts_skip "running under qemu-user emulation"
 	fi
 }
 
+function ts_runs_on_qemu {
+	if [ "$QEMU_USER" == "1" ] || grep -q 'qemu-' /proc/1/smaps &>/dev/null; then
+		echo 1
+		return
+	fi
+	echo 0
+	return
+}
+
 function ts_failed_subtest {
 	local msg="FAILED"
 	local ret=1
diff --git a/tests/ts/kill/name_to_number b/tests/ts/kill/name_to_number
index 955d861ec..7a8ad587f 100755
--- a/tests/ts/kill/name_to_number
+++ b/tests/ts/kill/name_to_number
@@ -27,7 +27,8 @@ ts_check_test_command "$TS_CMD_KILL"
 ts_check_test_command "$TS_HELPER_SIGRECEIVE"
 
 # SIGRTMAX-0 and SIGRTMAX-1 are not usable under QEMU
-ts_skip_qemu_user
+is_qemu=$(ts_runs_on_qemu)
+ARCH="$(uname -m)"
 
 . "$TS_SELF/kill_functions.sh"
 
@@ -51,6 +52,9 @@ for SIG in $($TS_CMD_KILL -L); do
 		SIG="$SIG+0"
 	fi
 	if [ "x$SIG" = "xRTMAX" ]; then
+		if [ "$ARCH" == "s390x" ] || [ "$is_qemu" == "1" ]; then
+			continue
+		fi 
 		SIG="$SIG-0"
 	fi