diff --git a/kdump-lib.sh b/kdump-lib.sh
index 7c1e3bc..a8c5ca5 100755
--- a/kdump-lib.sh
+++ b/kdump-lib.sh
@@ -1135,6 +1135,39 @@ _crashkernel_add()
 	echo "${ret%,}"
 }
 
+# Parses the kdump or fadump command line to extract a valid
+# positive nr_cpus=<N> value, defaulting to 1 if none is found.
+find_nr_cpus()
+{
+	local _cmdline_append
+	local _nr_cpus=1
+
+	# shellcheck disable=SC2153
+	if [[ $DEFAULT_DUMP_MODE == "fadump" ]]; then
+		_cmdline_append=$(grep '^\s*FADUMP_COMMANDLINE_APPEND\s*=' /etc/sysconfig/kdump | \
+			sed 's/^\s*FADUMP_COMMANDLINE_APPEND\s*=\s*"\(.*\)".*$/\1/')
+
+	else
+		_cmdline_append=$(grep '^\s*KDUMP_COMMANDLINE_APPEND\s*=' /etc/sysconfig/kdump | \
+			sed 's/^\s*KDUMP_COMMANDLINE_APPEND\s*=\s*"\(.*\)".*$/\1/')
+	fi
+
+	for arg in $_cmdline_append; do
+		case $arg in
+		nr_cpus=[0-9]*)
+			# Only accept if it's strictly digits after '='
+			value=${arg#nr_cpus=}
+			if [[ $value =~ ^[1-9][0-9]*$ ]]; then
+				_nr_cpus=$value
+			fi
+			;;
+		esac
+	done
+
+	ddebug "Configured nr_cpus=$_nr_cpus"
+	echo "$_nr_cpus"
+}
+
 # get default crashkernel
 # $1 dump mode, if not specified, dump_mode will be judged by is_fadump_capable
 # $2 kernel-release, if not specified, got by _get_kdump_kernel_version
@@ -1184,6 +1217,14 @@ kdump_get_arch_recommend_crashkernel()
 			has_mlx5 && ((_delta += 150))
 		fi
 	elif [[ $_arch == "ppc64le" ]]; then
+		local _per_cpu_area
+		local _nr_cpus
+
+		# 1MB per CPU
+		_per_cpu_area=1
+		_nr_cpus=$(find_nr_cpus)
+
+		_delta=$((_delta + _per_cpu_area * _nr_cpus))
 		if [[ $_dump_mode == "fadump" ]]; then
 			_ck_cmdline="4G-16G:768M,16G-64G:1G,64G-128G:2G,128G-1T:4G,1T-2T:6G,2T-4T:12G,4T-8T:20G,8T-16T:36G,16T-32T:64G,32T-64T:128G,64T-:180G"
 		else