From 4f15cd56680d63a2470b2b94b6c9f71e038c6022 Mon Sep 17 00:00:00 2001
From: Reinhard Tartler <siretart@tauware.de>
Date: Tue, 16 Jun 2026 05:40:26 -0400
Subject: [PATCH] fix: avoid unaligned 64-bit atomic panic on 32-bit platforms

Reorder fields in regexCacheWatcher to place int64 counters before
the *sync.Map pointer. On 32-bit architectures (i386, armhf), pointers
are 4 bytes, causing the int64 fields to start at offset 4 -- which
is not 8-byte aligned. Go's sync/atomic.AddInt64 panics when the
target int64 is not 8-byte aligned on 32-bit platforms.

Found during Debian package build (golang-github-pb33f-libopenapi-validator)
on i386 and armhf.
---
 parameters/path_parameters_test.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/parameters/path_parameters_test.go b/parameters/path_parameters_test.go
index 5972439..901b0a8 100644
--- a/parameters/path_parameters_test.go
+++ b/parameters/path_parameters_test.go
@@ -2249,10 +2249,10 @@ paths:
 }
 
 type regexCacheWatcher struct {
-	inner      *sync.Map
 	missCount  int64
 	hitCount   int64
 	storeCount int64
+	inner      *sync.Map
 }
 
 func (c *regexCacheWatcher) Load(key any) (value any, ok bool) {