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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/2422')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/2422 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/2422 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/2422 new file mode 100644 index 00000000..c129c617 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/2422 @@ -0,0 +1,15 @@ +<think> +Okay, so I have this bug report about QEMU not handling a specific RISC-V instruction correctly. The issue is related to the `vsetvli` instruction when it's used in a reserved way. From what I understand, when you execute a `vsetvli zero,zero,...` that changes VLMAX, the spec says implementations may set the `vill` bit. But QEMU isn't doing that, which is causing an assertion failure. + +The user provided a C program that tests this scenario. They first check if `vill` is clear, then execute some valid `vsetvli` instructions without issues. The problem comes when they try to use a reserved form of `vsetvli`, expecting `vill` to be set, but it's not. + +I need to figure out whether this is a user-mode or system-mode issue. User-mode relates to general application execution without needing special privileges, while system-mode involves higher privileges, devices, peripherals, or the OS itself. + +In this case, the problem occurs when running a user-space program that uses vector instructions. The `vsetvli` instruction is part of the RISC-V Vector Extension (V), which is used in user-mode code for vector operations. The issue arises because QEMU's emulation isn't correctly setting the `vill` bit as per the specification when this reserved instruction form is used. + +Since the test program doesn't require any special privileges and runs as a regular application, it seems like the bug lies within how QEMU emulates user-mode instructions, specifically the vector instructions. Therefore, this should be classified under 'user' because it's about the behavior of an application running in user mode without involving system-level components or privileged operations. + +I don't think this relates to system-mode aspects like device drivers, interrupts, or higher privilege levels since the test is straightforward and doesn't involve any such elements. It's purely about the execution of vector instructions as per the RISC-V spec. +</think> + +user \ No newline at end of file |