Carla 0.9.13 Segmentation fault (Bad file descriptor)

[hh0rva1h]

CARLA 0.9.13 (docker image)
Platform: Linux

We are observing the following segfault repeatedly in our experiments with Carla:

LowLevelFatalError [File:Unknown] [Line: 136]
Exception thrown: close: Bad file descriptor
Signal 11 caught.
Malloc Size=65538 LargeMemoryPoolOffset=65554
4.26.2-0+++UE4+Release-4.26 522 0
Disabling core dumps.
CommonUnixCrashHandler: Signal=11
Engine crash handling finished; re-raising signal 11 for the default handler. Good bye.

Unfortunately we do not yet have a minimal example to reproduce and dropping all of our code here is not an option, but the crash happens quite reliably: out of 10 experiments we do, at least 3 crash after some time due to this segfault.

I don't know whether the [Line: 136] gives you any hint where the problem might lie, if not, please share some instructions how we could help you with debugging this issue.

Might be related: #3197, #3994

[varunjammula]

@bernatx Any updates on this?

[aishgupta]

@bernatx Any help on this?

[PatrickFSLin]

Any update? I've been stuck and tried to solve this issue for over a week, but got nothing further...even with carla 0.9.14 #5611

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[hjh0119]

I have the same issue , any solution?

[Leviathan321]

I am experiencing the same issue. Is this already solved?

[lumurillo]

I am having the same issue even in 0.9.15. Any suggestion?

[hdp-alt]

Hello everybody,

I got a similar error code after (building and) running a package with CARLA-UE5.

In my case the segmentation fault is caused by the Vulkan or GPU settings, I guess.
I have 128GB RAM and 12GB VRAM, this should be sufficient for CARLA-UE5.

Does somebody know a solution for this error message?

[Blyron]

For those in UE4 versions please share the repro steps to get this crash. We cannot do anything only with that information. We need repro steps for crashes.

For UE5 ( this documentation is WIP ) https://carla-ue5.readthedocs.io/en/latest/start_quickstart/ you need at least 16GB VRAM