From 6c25d2bd58e4b5a002a7d1cd2882dd4e7ef23b6f Mon Sep 17 00:00:00 2001
From: Thibault Leclercq <thibault@paradigme.tech>
Date: Fri, 17 Jul 2026 18:27:47 +0200
Subject: [PATCH] std.debug.SelfInfo.Elf: clear unwind cache when rebuilding
 module list

---
 lib/std/debug/SelfInfo/Elf.zig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/std/debug/SelfInfo/Elf.zig b/lib/std/debug/SelfInfo/Elf.zig
index 7a81b4cba894fd238d72e5e1c74cdc3df8ae176a..eb60162dcb405709a7468e97ea4b755aaefe2d90 100644
--- a/lib/std/debug/SelfInfo/Elf.zig
+++ b/lib/std/debug/SelfInfo/Elf.zig
@@ -428,6 +428,9 @@ fn findModule(si: *SelfInfo, gpa: Allocator, io: Io, address: usize, lock: enum
     // Rebuild module list with the exclusive lock.
     {
         errdefer si.rwlock.unlock(io);
+        if (si.unwind_cache) |cache| {
+            @memset(cache, .empty);
+        }
         for (si.modules.items) |*mod| {
             unwind: {
                 const u = &(mod.unwind orelse break :unwind catch break :unwind);
-- 
2.54.0