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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/system/1976')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/system/1976 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/system/1976 b/results/classifier/mode-deepseek-r1:32b/reasoning/system/1976 new file mode 100644 index 000000000..7a981a430 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/system/1976 @@ -0,0 +1,13 @@ +<think> +Alright, let's try to figure out whether this bug is related to user mode or system mode in QEMU. + +First, the problem occurs when running a RISC-V image on Android using Cuttlefish. The issue is that certain binaries crash at boot with SIGILL (ILL_OPC) due to bad MSTATUS_VS register handling. The backtrace points to functions in QEMU's target/riscv/csr.c and op_helper.c, which are part of the CPU emulation. + +Looking deeper, the error seems to stem from how the Vector Status (MSTATUS_VS) is managed. When a new vCPU thread starts, it checks if MSTATUS_VS is set, but it might not be initialized properly. This leads to the CPU incorrectly thinking vector instructions aren't supported, causing SIGILL when they're executed. + +The steps involve modifying QEMU's source code and building it for system emulation (qemu-system-riscv64), which indicates that this is a system-level issue rather than user-mode specific. The crash happens in the emulator's handling of system-level operations like CSRs and vector instructions, not within a userspace application. + +Therefore, since the bug affects how QEMU emulates the RISC-V CPU at a low level (including特权操作和设备初始化), it falls under system mode. +</think> + +system \ No newline at end of file |