error MSB6006: "csc.dll" exited with code 139

[sxul]

Description

Install dotnet sdk 6.0 preview and execute that commands in android device:

dotnet new console 
dotnet build

/home/sxul07/.dotnet/bin/sdk/6.0.100-preview.7.21379.14/Roslyn/Microsoft.CSharp.Core.targets(75,5): error MSB6006: “csc.dll”exited with code 139. [/home/sxul07/tmp/hw/hw.csproj]

Configuration

• Which version of .NET is the code running on?

• dotnet sdk 6.0.100-preview.7.21379.14

• What OS and version, and what distro if applicable?

• TermuxArch in Termux base on Android 11(MIUI12.5)

• What is the architecture (x64, x86, ARM, ARM64)?

• ARM64

• uname -a: Linux localhost 5.4.61-qgki-g597cd7c1d73b #1 SMP PREEMPT Thu Aug 5 03:06:50 CST 2021 aarch64 GNU/Linux

Other information

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[jeffschwMSFT]

@sxul can you capture the issue under a debugger and share a stack trace/dump?

[valentinbreiz]

Hello, I have the same problem on aarch64 too. Here is a strace log for the dotnet build command:

strace.txt

[mangod9]

Hi @sxul @valentinbreiz , does this fail on Termux or do you observe the failure on other distros as well?

[mangod9]

Also would be good to know if this is a regression (whether things worked fine in .net 5 or previous .net 6 previews)

[valentinbreiz]

With .NET 5 there are segmentation faults everywhere even with dotnet --v ...
Only dotnet or dotnet --list-runtimes / --list-sdks was working

[mangod9]

Ok since this is not a regression and assuming it happens with this specific distro moving to 7.

[ViktorHofer]

Just happened again on Build Android x64 Release AllSubsets_Mono_RuntimeTests_Interp (7.0): https://dev.azure.com/dnceng/public/_build/results?buildId=1320414&view=logs&jobId=c1e461de-48bf-5e60-0a97-1d3931972820&j=c1e461de-48bf-5e60-0a97-1d3931972820

Container is ubuntu-18.04-android