--- third_party/partition_alloc/partition_alloc.gni.orig	2026-09-01 03:39:43 UTC
+++ third_party/partition_alloc/partition_alloc.gni
@@ -110,8 +110,8 @@ use_large_empty_slot_span_ring = true
 # TODO(crbug.com/329199197): Clean this up when experiments are complete.
 use_large_empty_slot_span_ring = true
 
-has_memory_tagging = current_cpu == "arm64" && is_clang && !is_asan &&
-                     !is_hwasan && (is_linux || is_android)
+has_memory_tagging = current_cpu == "arm64" && !is_bsd && is_clang &&
+                     !is_asan && !is_hwasan && (is_linux || is_android)
 
 declare_args() {
   # Whether PartitionAlloc is built in official mode.
@@ -540,7 +540,8 @@ is_pkeys_available =
 # dependencies that use partition_allocator are compiled in AOSP against a
 # version of glibc that does not include pkeys syscall numbers.
 is_pkeys_available =
-    (is_linux || is_chromeos) && current_cpu == "x64" && !is_cronet_build
+    (is_linux || is_chromeos) && !is_bsd && current_cpu == "x64" &&
+    !is_cronet_build
 declare_args() {
   enable_pkeys = is_pkeys_available
 }