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Diffstat (limited to 'results/scraper/launchpad-without-comments/1882123')
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diff --git a/results/scraper/launchpad-without-comments/1882123 b/results/scraper/launchpad-without-comments/1882123 new file mode 100644 index 000000000..fb28eb5b4 --- /dev/null +++ b/results/scraper/launchpad-without-comments/1882123 @@ -0,0 +1,58 @@ +ARM cpu emulation regression on QEMU 4.2.0 + +[*] Summary + +Latest QEMU has an ARM CPU emulation regression. +Regression is reproducible by building any C# project with .NET Core SDK 3.1.300 on Debian 10 armhf. + +Affected releases: QEMU 4.2.0, 5.0.0 +Not affected releases: QEMU 4.1.0, QEMU 4.1.1 + + +[*] Detail + +qemu-system-arm fails to run .NET Core SDK 3.1 on Debian 10 armhf. + +I occasionally test my C# projects on the virtual armhf/arm64 system emulated by QEMU. +MSBuild, a build engine of the .NET Core SDK, crashes on QEMU 4.2.0 or later. +The crash only happens when MSBuild tries to do any JIT compiling (dotnet build / dotnet test). + +I attached MSBuild crash logs. MSBuild always crashes with SEHException, which means it tried to call C binary from .NET binary. + +The issue affects QEMU 4.2.0 and 5.0.0. +QEMU 4.1.0, 4.1.1, and real Raspberry Pi 2 machine is not affected by this issue, and .NET Core SDK works completely fine. +Thus, I think an ARM CPU regression happened between QEMU 4.1.1 ~ QEMU 4.2.0. + + +[*] Environment + +[Host OS] +Distribution: Linux Mint 19.3 amd64 +CPU: AMD Ryzen 5 3600 +Kernel: Ubuntu 5.3.0-51-generic + +[QEMU Arguments] +qemu-system-arm \ + -smp 3 -M virt -m 4096 \ + -kernel vmlinuz-4.19.0-9-armmp-lpae \ + -initrd initrd.img-4.19.0-9-armmp-lpae \ + -append "root=/dev/vda2" \ + -drive if=none,file=debian_arm.qcow2,format=qcow2,id=hd \ + -device virtio-blk-device,drive=hd \ + -netdev user,id=mynet,hostfwd=tcp::<PORT>-:22 \ + -device virtio-net-device,netdev=mynet \ + -device virtio-rng-device\ + +[QEMU Guest OS] +Distribution: Debian 10 Buster armhf +Kernel: Debian 4.19.0-9-armmp-lpae +.NET Core SDK: 3.1.300 + +[Raspberry Pi 2] +Distribution: Raspberry Pi OS Buster armhf (20200527) + +[Tested C# Projects] +This is a list of C# projects I have tested on QEMU and RPI2. +- https://github.com/ied206/Joveler.DynLoader +- https://github.com/ied206/Joveler.Compression +- https://github.com/ied206/ManagedWimLib \ No newline at end of file |