diff --git a/find-requires.ksyms b/find-requires.ksyms
index b11c7bb..6918a01 100755
--- a/find-requires.ksyms
+++ b/find-requires.ksyms
@@ -1,4 +1,9 @@
 #! /bin/bash
+#
+# This script is called during external module building to create dependencies
+# both upon the RHEL kernel, and on additional external modules. Symbols that
+# cannot be reconciled against those provided by the kernel are assumed to be
+# provided by an external module and "ksym" replaces th regular "kernel" dep.
 
 IFS=$'\n'
 
@@ -50,6 +55,49 @@ if ! [ -e /sbin/modinfo -a -e /sbin/modprobe ]; then
     exit 0
 fi
 
+check_kabi() {
+    arch=$(uname -m)
+    kabi_file="/lib/modules/kabi-current/kabi_stablelist_$arch"
+
+    # If not installed, output a warning and return (continue)
+    if [ ! -f "$kabi_file" ]; then
+        echo "" >&2
+        echo "********************************************************************************" >&2
+        echo "*********************** KERNEL ABI COMPATIBILITY WARNING ***********************" >&2
+        echo "********************************************************************************" >&2
+        echo "The kernel ABI reference files (provided by "kabi-stablelists") were not found." >&2
+        echo "No compatibility check was performed. Please install the kABI reference files" >&2
+        echo "and rebuild if you would like to verify compatibility with kernel ABI." >&2
+        echo "" >&2
+        return
+    fi
+
+    unset non_kabi
+    for symbol in "$@"; do
+        if ! egrep "^[[:space:]]$symbol\$" $kabi_file >/dev/null; then
+            non_kabi=("${non_kabi[@]}" "$symbol")
+        fi
+    done
+
+    if [ ${#non_kabi[@]} -gt 0 ]; then
+        echo "" >&2
+        echo "********************************************************************************" >&2
+        echo "*********************** KERNEL ABI COMPATIBILITY WARNING ***********************" >&2
+        echo "********************************************************************************" >&2
+        echo "The following kernel symbols are not guaranteed to remain compatible with" >&2
+        echo "future kernel updates to this RHEL release:" >&2
+        echo "" >&2
+        for symbol in "${non_kabi[@]}"; do
+            printf "\t$symbol\n" >&2
+        done
+        echo "" >&2
+        echo "Red Hat recommends that you consider using only official kernel ABI symbols" >&2
+        echo "where possible. Requests for additions to the kernel ABI can be filed with" >&2
+        echo "your partner or customer representative (component: driver-update-program)." >&2
+        echo "" >&2
+    fi
+}
+
 modules=($(grep -E '/lib/modules/.+\.ko$'))
 if [ ${#modules[@]} -gt 0 ]; then
     kernel=$(/sbin/modinfo -F vermagic "${modules[0]}" | sed -e 's: .*::' -e q)
@@ -71,4 +119,10 @@ if [ ${#modules[@]} -gt 0 ]; then
     # Symbols from elsewhere get a "ksym" dependency
     LC_ALL=C join -t $'\t' -j 1 -v 2 $symvers <(mod_requires "${modules[@]}") | LC_ALL=C sort -u \
     | awk '{ FS = "\t" ; OFS = "\t" } { print "ksym(" $1 ") = " $2 }'
+
+    # Check kABI if the kabi-stablelists package is installed
+    # Do this last so we can try to output this error at the end
+    kabi_check_symbols=($(LC_ALL=C join -t $'\t' -j 1 $symvers <(mod_requires "${modules[@]}") | LC_ALL=C sort -u \
+    | awk '{ FS = "\t" ; OFS = "\t" } { print $1 }'))
+    check_kabi "${kabi_check_symbols[@]}"
 fi