diff --git a/src/target.zig b/src/target.zig
index a721b0bf65..7e50589ab8 100644
--- a/src/target.zig
+++ b/src/target.zig
@@ -1,3 +1,4 @@
+const builtin = @import("builtin");
 const std = @import("std");
 const assert = std.debug.assert;
 
@@ -255,6 +256,7 @@ pub fn hasNewLinkerSupport(ofmt: std.Target.ObjectFormat, backend: std.builtin.C
 /// debug mode. A given target should only return true here if it is passing greater
 /// than or equal to the number of behavior tests as the respective LLVM backend.
 pub fn selfHostedBackendIsAsRobustAsLlvm(target: *const std.Target) bool {
+    if (comptime builtin.cpu.arch.endian() == .big) return false; // https://github.com/ziglang/zig/issues/25961
     if (target.cpu.arch.isSpirV()) return true;
     if (target.cpu.arch == .x86_64 and target.ptrBitWidth() == 64) {
         if (target.os.tag == .illumos) {
diff --git a/test/src/ErrorTrace.zig b/test/src/ErrorTrace.zig
index bd3febef0e..f6f80f8b13 100644
--- a/test/src/ErrorTrace.zig
+++ b/test/src/ErrorTrace.zig
@@ -39,6 +39,7 @@ pub fn addCase(self: *ErrorTrace, case: Case) void {
 }
 
 fn shouldTestNonLlvm(target: *const std.Target) bool {
+    if (comptime builtin.cpu.arch.endian() == .big) return false; // https://github.com/ziglang/zig/issues/25961
     return switch (target.cpu.arch) {
         .x86_64 => switch (target.ofmt) {
             .elf => !target.os.tag.isBSD() and target.os.tag != .illumos,
diff --git a/test/src/StackTrace.zig b/test/src/StackTrace.zig
index 8b2d514010..57e29dd800 100644
--- a/test/src/StackTrace.zig
+++ b/test/src/StackTrace.zig
@@ -44,12 +44,15 @@ fn addCaseTarget(
     target: *const std.Build.ResolvedTarget,
     triple: ?[]const u8,
 ) void {
-    const both_backends = switch (target.result.cpu.arch) {
-        .x86_64 => switch (target.result.ofmt) {
-            .elf => !target.result.os.tag.isBSD() and target.result.os.tag != .illumos,
+    const both_backends = b: {
+        if (comptime builtin.cpu.arch.endian() == .big) break :b false; // https://github.com/ziglang/zig/issues/25961
+        break :b switch (target.result.cpu.arch) {
+            .x86_64 => switch (target.result.ofmt) {
+                .elf => !target.result.os.tag.isBSD() and target.result.os.tag != .illumos,
+                else => false,
+            },
             else => false,
-        },
-        else => false,
+        };
     };
     const both_pie = switch (target.result.os.tag) {
         .fuchsia, .openbsd => false,
diff --git a/test/tests.zig b/test/tests.zig
index 1f9db5f2dd..344f598f2e 100644
--- a/test/tests.zig
+++ b/test/tests.zig
@@ -2500,6 +2500,7 @@ fn addOneModuleTest(
 }
 
 pub fn wouldUseLlvm(use_llvm: ?bool, query: std.Target.Query, optimize_mode: OptimizeMode) bool {
+    if (comptime builtin.cpu.arch.endian() == .big) return true; // https://github.com/ziglang/zig/issues/25961
     if (use_llvm) |x| return x;
     if (query.ofmt == .c) return false;
     switch (optimize_mode) {