Software: nginx/1.23.4. PHP/5.6.40-65+ubuntu20.04.1+deb.sury.org+1 

uname -a: Linux foro-restaurado-2 5.15.0-1040-oracle #46-Ubuntu SMP Fri Jul 14 21:47:21 UTC 2023
aarch64 

uid=33(www-data) gid=33(www-data) groups=33(www-data) 

Safe-mode: OFF (not secure)

/usr/src/linux-oracle-headers-5.15.0-1040/tools/testing/selftests/memfd/   drwxr-xr-x
Free 83.28 GB of 96.73 GB (86.1%)
                            Encoder    Tools    Proc.    FTP brute    Sec.    SQL    PHP-code    Update    Feedback    Self remove    Logout    

Viewing file:     run_hugetlbfs_test.sh (1.56 KB)      -rwxr-xr-x

#!/bin/bash
# please run as root

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

#
# To test memfd_create with hugetlbfs, there needs to be hpages_test
# huge pages free.  Attempt to allocate enough pages to test.
#
hpages_test=8

#
# Get count of free huge pages from /proc/meminfo
#
while read name size unit; do
        if [ "$name" = "HugePages_Free:" ]; then
                freepgs=$size
        fi
done < /proc/meminfo

#
# If not enough free huge pages for test, attempt to increase
#
if [ -n "$freepgs" ] && [ $freepgs -lt $hpages_test ]; then
	nr_hugepgs=`cat /proc/sys/vm/nr_hugepages`
	hpages_needed=`expr $hpages_test - $freepgs`

	if [ $UID != 0 ]; then
		echo "Please run memfd with hugetlbfs test as root"
		exit $ksft_skip
	fi

	echo 3 > /proc/sys/vm/drop_caches
	echo $(( $hpages_needed + $nr_hugepgs )) > /proc/sys/vm/nr_hugepages
	while read name size unit; do
		if [ "$name" = "HugePages_Free:" ]; then
			freepgs=$size
		fi
	done < /proc/meminfo
fi

#
# If still not enough huge pages available, exit.  But, give back any huge
# pages potentially allocated above.
#
if [ $freepgs -lt $hpages_test ]; then
	# nr_hugepgs non-zero only if we attempted to increase
	if [ -n "$nr_hugepgs" ]; then
		echo $nr_hugepgs > /proc/sys/vm/nr_hugepages
	fi
	printf "Not enough huge pages available (%d < %d)\n" \
		$freepgs $needpgs
	exit $ksft_skip
fi

#
# Run the hugetlbfs test
#
./memfd_test hugetlbfs
./run_fuse_test.sh hugetlbfs

#
# Give back any huge pages allocated for the test
#
if [ -n "$nr_hugepgs" ]; then
	echo $nr_hugepgs > /proc/sys/vm/nr_hugepages
fi