diff --git a/pkgs/applications/science/math/gap/default.nix b/pkgs/applications/science/math/gap/default.nix
index 04a49becc97..ce93c14b334 100644
--- a/pkgs/applications/science/math/gap/default.nix
+++ b/pkgs/applications/science/math/gap/default.nix
@@ -101,6 +101,9 @@ stdenv.mkDerivation rec {
       excludes = ["tst/testinstall/stringobj.tst"];
       sha256 = "1mz5b4mbw2jdd1ypp5s0dy6pp0jsvwsxr2dm4kbkls20r1r192sc";
     })
+
+    # fixes aarch64 gc crashes: https://github.com/gap-system/gap/pull/3965
+    ./mark-genstackfuncbags-as-noinline.patch
   ];
 
   postPatch = ''
diff --git a/pkgs/applications/science/math/gap/mark-genstackfuncbags-as-noinline.patch b/pkgs/applications/science/math/gap/mark-genstackfuncbags-as-noinline.patch
new file mode 100644
index 00000000000..3a2f7231c09
--- /dev/null
+++ b/pkgs/applications/science/math/gap/mark-genstackfuncbags-as-noinline.patch
@@ -0,0 +1,13 @@
+diff --git a/src/gasman.c b/src/gasman.c
+index 417811401..314a74190 100644
+--- a/src/gasman.c
++++ b/src/gasman.c
+@@ -1861,7 +1861,7 @@ void SparcStackFuncBags( void )
+ #endif
+ 
+ 
+-void GenStackFuncBags ( void )
++NOINLINE void GenStackFuncBags ( void )
+ {
+     Bag *               top;            /* top of stack                    */
+     Bag *               p;              /* loop variable                   */