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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/1620')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/1620 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/1620 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1620 new file mode 100644 index 000000000..5b8303a10 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1620 @@ -0,0 +1,21 @@ +<think> +Okay, so I need to figure out whether this bug is user-mode related or system-mode related. Let's start by understanding the problem. + +The issue is about SME ( Scalable Matrix Extension) instructions in ARMv9 giving incorrect results. Specifically, using an outer product instruction with tile 1 instead of tile 0 results in zeros instead of ones. The user provided code snippets and a reproduction step using QEMU. + +Hmm, SME instructions are part of the CPU's vector processing extensions. They operate on tiles which can be thought of as matrices for performing matrix operations efficiently. The problem arises when using tile 1; the output is all zeros, but it should be ones since they're multiplying vectors of 1s. + +Looking at the code in foo.S, the SME instructions are being used inside a function that's supposed to compute an outer product and store the result into memory. When they use za0.s instead of za1.s, it works correctly. But when using za1.s, the output is zeros. So, something's wrong with how tile 1 is being handled. + +The user mentions that without looking into QEMU's code, this appears to be a bug in how elements are set based on the tile number. They suspect it's an issue in QEMU's implementation of SME instructions for tile operations beyond tile 0. + +Now, thinking about QEMU: it's an emulator that simulates various CPUs. If there's a problem with how SME instructions handle tiles (like reading from or writing to specific tiles), this would be a bug in the emulation of the CPU instructions. Since SME is part of the CPU architecture, handling tiles is part of the user-mode execution because these instructions are executed in the context of the application running on the CPU. + +QEMU's system mode handles things like device emulation, MMU, and other system-level operations. But this bug is about how specific CPU instructions (SME) operate within a user program, so it should be related to the user-mode emulation. + +Therefore, I classify this as a 'user' bug because it pertains to how QEMU emulates the SME instruction set in the context of running user applications. +</think> + +The issue involves incorrect handling of specific CPU instructions (SME) within an application, which is part of user-mode execution. Therefore, the classification is: + +user \ No newline at end of file |