From 1b3fb60960320b33bf739591c884dfb6f712c964 Mon Sep 17 00:00:00 2001
From: Jameson Nash <vtjnash@gmail.com>
Date: Tue, 10 Aug 2021 17:31:22 -0400
Subject: [PATCH] win: fix lock function call for backtrace collection (#41849)

Avoids an assert when this is triggered

(cherry picked from commit 2d8174254805b96ce936f233ce75264ad18051cf)
---
 src/signals-win.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/signals-win.c b/src/signals-win.c
index 984330dc434dc..5d1a963078df4 100644
--- a/src/signals-win.c
+++ b/src/signals-win.c
@@ -141,7 +141,7 @@ void jl_throw_in_ctx(jl_value_t *excpt, PCONTEXT ctxThread)
                                               ct->gcstack);
         }
         else if (have_backtrace_fiber) {
-            JL_LOCK(&backtrace_lock);
+            JL_LOCK_NOGC(&backtrace_lock);
             stkerror_ctx = ctxThread;
             stkerror_ptls = ptls;
             jl_swapcontext(&error_return_fiber, &collect_backtrace_fiber);