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id = 1531
title = "MIPSr6+MSA emulation is broken in QEMU 6.2.0 (Ubuntu 22.04 LTS) and 7.0.0"
state = "closed"
created_at = "2023-03-04T17:46:57.576Z"
closed_at = "2023-03-29T11:09:08.357Z"
labels = ["Closed::WontFix", "Stable::obsolete", "target: mips"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/1531"
host-os = "Ubuntu MATE 22.04.2 LTS"
host-arch = "x86_64"
qemu-version = "6.2.0, 7.0.0 (any other version prior to or after, they are all good)"
guest-os = "n/a"
guest-arch = "n/a"
description = """Many tests (8,11,12,13,15,19,23,30,31,36) are failing due to QEMU emulation problem."""
reproduce = """1. Download the source code from https://github.com/VectorChief/UniSIMD-assembler (master or v1.1.0c)
2. Change to project's test directory and build the binary for MIPS using cross-compiler (see simd_make_m64.mk)
3. Run the binary with QEMU linux-user mode: qemu-mips64el -cpu I6400 simd_test.m64f32Lr6 -c 1 | tee qemu64
4. Check the output text file qemu64 (with pluma or any other text editor) to see the error printouts"""
additional = """The pre-built binary and its output file are attached as test.tar.gz
[test.tar.gz](/uploads/7a54ba10919a1b221dd8ea0e8c02c064/test.tar.gz)
Please note, that standalone cross-compiler for MIPS downloaded from the site
(Codescape.GNU.Tools.Package.2020.06-01.for.MIPS.MTI.Linux.CentOS-6.x86_64.tar.gz)
comes with its own version of QEMU 4.1.0 which masks the system's QEMU when added to the PATH."""
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