问题：./CarlaUE4.sh运行报错

4.26.2-0+++UE4+Release-4.26 522 0
Disabling core dumps.
Signal 11 caught.
Malloc Size=65538 LargeMemoryPoolOffset=65554 
CommonUnixCrashHandler: Signal=11
Malloc Size=131160 LargeMemoryPoolOffset=196744 
Malloc Size=131160 LargeMemoryPoolOffset=327928 
Engine crash handling finished; re-raising signal 11 for the default handler. Good bye.

Segmentation fault (core dumped)

当前环境：

lsb_release -a

Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.6 LTS
Release:	20.04
Codename:	focal

nvidia-smi 

 Driver Version: 560

问题解决：

1、尝试未解决

        1、降低分辨率和大小低画质运行

// An highlighted block
./CarlaUE4.sh -quality-level=low -fps=15 -windowed -Resx=600 -Resy=480

参考文章：carla Engine crash handling finished； re-raising signal 11 for the default handler. Good bye._engine crash handling finished; re-raising signal -CSDN博客

        2、关闭vscode

参考文章：解决：docker运行carla，显示显存爆炸，LargeMemoryPoolOffset=196744 Malloc Size=131160 LargeMemoryPoolOffset=327928_signal 11 caught. malloc size=65538 largememorypoo-CSDN博客

2、已解决问题 - 安装低版本nvidia驱动

问题解析：nvidia官网驱动中的给出的中文最新版本是550，但是在ubuntu软件和更新及ubuntu-drivers devices指令中，给出的推荐版本是560，感觉问题应该是出在这里。

建议下载官网最新版本及以下版本，即低于550

nvidia驱动官网;下载 NVIDIA 官方驱动 | NVIDIA

        1、ubuntu软件和更新安装（最简单、需要联网）

软件和更新中的附加驱动，选择合适的版本，点击应用更改，等待一段时间即可安装完毕。

        2、终端命令行安装（简单、可视化安装进度）

ubuntu-drivers devices    # 检测n卡的可选驱动
sudo apt install nvidia-driver-510  # 根据自己的n卡可选驱动下载显卡驱动

        3、 验证成功安装

nvidia驱动成功更改

nvidia-smi

+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 535.183.01             Driver Version: 535.183.01   CUDA Version: 12.2     |
|-----------------------------------------+----------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |         Memory-Usage | GPU-Util  Compute M. |
|                                         |                      |               MIG M. |
|=========================================+======================+======================|
|   0  NVIDIA TITAN RTX               Off | 00000000:01:00.0  On |                  N/A |
| 40%   37C    P8              16W / 280W |    477MiB / 24576MiB |     15%      Default |
|                                         |                      |                  N/A |
+-----------------------------------------+----------------------+----------------------+
                                                                                         
+---------------------------------------------------------------------------------------+
| Processes:                                                                            |
|  GPU   GI   CI        PID   Type   Process name                            GPU Memory |
|        ID   ID                                                             Usage      |
|=======================================================================================|
|    0   N/A  N/A      1274      G   /usr/lib/xorg/Xorg                           59MiB |
|    0   N/A  N/A      1624      G   /usr/lib/xorg/Xorg                          272MiB |
|    0   N/A  N/A      1763      G   /usr/bin/gnome-shell                        106MiB |
|    0   N/A  N/A      1957      G   ...in/bin/sunloginclient --cmd=autorun       12MiB |
|    0   N/A  N/A      2070      G   ...) Chrome/58.0.3029.81 Safari/537.36        3MiB |
|    0   N/A  N/A      2099      G   ...en=820DAEB3A78500FA5E09F4F05D0ED176        3MiB |
+---------------------------------------------------------------------------------------+

carla成功运行 

(base) sunbs@darker:~/carla_0.9.14$ ./CarlaUE4.sh 
4.26.2-0+++UE4+Release-4.26 522 0
Disabling core dumps.

        补充：nvidia-smi不显示

重启电脑即可

Failed to initialize NVML: Driver/library version mismatch 
NVML library version: 535.183