From 9f70423e351412adafecbd80dc97dc57d0b1c206 Mon Sep 17 00:00:00 2001
From: Martin <laz.git@mfriebe.de>
Date: Tue, 6 Sep 2022 21:26:07 +0200
Subject: [PATCH] LazDebuggerFp: fix getting full Callstack.Count - Issue
 #39886

(cherry picked from commit 61e5fb272ae172886c042c306bbd5e6db695dbff)
---
 .../lazdebuggers/lazdebuggerfp/fpdebugdebuggerworkthreads.pas  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/lazdebuggers/lazdebuggerfp/fpdebugdebuggerworkthreads.pas b/components/lazdebuggers/lazdebuggerfp/fpdebugdebuggerworkthreads.pas
index 48abb6424f..112edb8b1c 100644
--- a/components/lazdebuggers/lazdebuggerfp/fpdebugdebuggerworkthreads.pas
+++ b/components/lazdebuggers/lazdebuggerfp/fpdebugdebuggerworkthreads.pas
@@ -547,7 +547,8 @@ begin
   FDebugger.FLockList.GetLockFor(ThreadCallStack);
   try
     CurCnt := ThreadCallStack.Count;
-    while (not StopRequested) and (FRequiredMinCount > CurCnt) and
+    while (not StopRequested) and
+          ( (FRequiredMinCount > CurCnt) or (FRequiredMinCount < 0) ) and
           (not ThreadCallStack.HasReadAllAvailableFrames)
     do begin
       ReqCnt := Min(CurCnt + 5, FRequiredMinCount);