Software: Apache. PHP/8.1.30 

uname -a: Linux server1.tuhinhossain.com 5.15.0-151-generic #161-Ubuntu SMP Tue Jul 22 14:25:40 UTC
2025 x86_64 

uid=1002(picotech) gid=1003(picotech) groups=1003(picotech),0(root)  

Safe-mode: OFF (not secure)

/usr/src/linux-headers-5.15.0-151/tools/testing/selftests/locking/   drwxr-xr-x
Free 28.5 GB of 117.98 GB (24.16%)
                            Encoder    Tools    Proc.    FTP brute    Sec.    SQL    PHP-code    Update    Self remove    Logout    

Viewing file:     ww_mutex.sh (474 B)      -rwxr-xr-x

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0

# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4

# Runs API tests for struct ww_mutex (Wait/Wound mutexes)
if ! /sbin/modprobe -q -n test-ww_mutex; then
	echo "ww_mutex: module test-ww_mutex is not found [SKIP]"
	exit $ksft_skip
fi

if /sbin/modprobe -q test-ww_mutex; then
       /sbin/modprobe -q -r test-ww_mutex
       echo "locking/ww_mutex: ok"
else
       echo "locking/ww_mutex: [FAIL]"
       exit 1
fi