terminate called after throwing an instance of 'PAL_SEHException'

[JackJiang1234]

Hey buddy, we have an ASP.NET Core app deployed in a Kubernetes Docker environment. Lately, it’s been crashing occasionally, and the error message is as stated in the title, but there's no stack trace. We're using .NET Core version net6. Do you know any way to catch the specific error details?

[colejohnson66]

Are you using Mono or CoreCLR? Does the issue still occur on .NET 8 or .NET 9?

[jkotas]

PAL_SEHException should be always caught by the runtime code, it should never escape unhandled. If you see it escaping unhandled, it means there is a bug in the runtime. To get more detail, you would need to get a crash dump and inspect it under native debugger (lldb).

We have fixed a few bugs that can cause PAL_SEHException to escape. I agree with @colejohnson66 that upgrading to newer version is a good idea. .NET 6 has only two months of life left, so you will need to upgrade soon anyway to stay on a supported version.

[JackJiang1234]

Thanks for getting back to me. We're using CoreCLR. We referred to https://learn.microsoft.com/zh-cn/dotnet/core/diagnostics/collect-dumps-crash to set up crash dumps. I'll keep you posted with any further updates.

[JackJiang1234]

i got the crash dump, but i can't find any crash info.


do you have any suggest? thank you