From 47347f785f5c26f1f9e65bef8e10f2d383406ef7 Mon Sep 17 00:00:00 2001
From: Axel Huebl <axel.huebl@plasma.ninja>
Date: Fri, 29 Mar 2024 15:39:09 -0700
Subject: [PATCH] Fix: Resize Component on Add (#3861)

## Summary

Some object called "dummy mf" needs to be resized to avoid segfaults.

## Additional background

Follow-up to #3615

## Checklist

The proposed changes:
- [x] fix a bug or incorrect behavior in AMReX
- [ ] add new capabilities to AMReX
- [ ] changes answers in the test suite to more than roundoff level
- [ ] are likely to significantly affect the results of downstream AMReX
users
- [ ] include documentation in the code and/or rst files, if appropriate
---
 Src/Particle/AMReX_ParticleContainer.H | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Src/Particle/AMReX_ParticleContainer.H b/Src/Particle/AMReX_ParticleContainer.H
index e0b610a46af..b258c584f3d 100644
--- a/Src/Particle/AMReX_ParticleContainer.H
+++ b/Src/Particle/AMReX_ParticleContainer.H
@@ -1244,6 +1244,7 @@ public:
         m_num_runtime_real++;
         h_redistribute_real_comp.push_back(communicate);
         SetParticleSize();
+        this->resizeData();
 
         // resize runtime SoA
         for (int lev = 0; lev < numLevels(); ++lev) {
@@ -1266,6 +1267,7 @@ public:
         m_num_runtime_int++;
         h_redistribute_int_comp.push_back(communicate);
         SetParticleSize();
+        this->resizeData();
 
         // resize runtime SoA
         for (int lev = 0; lev < numLevels(); ++lev) {