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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/system/2489')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/system/2489 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/system/2489 b/results/classifier/mode-deepseek-r1:32b/reasoning/system/2489 new file mode 100644 index 00000000..01d6284f --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/system/2489 @@ -0,0 +1,15 @@ +<think> +Okay, so I need to figure out whether this QEMU bug is related to user-mode or system-mode. Let me start by understanding the problem. + +The issue occurs when using a plugin that registers a vcpu memory callback. The steps involve creating a VM with Windows 7, taking a snapshot, and then loading it with a specific plugin. Without the plugin, everything works fine. When the plugin is used, QEMU freezes and crashes with a segmentation fault. + +Looking at the GDB backtrace, the crash happens in `fpu_helper.c`, specifically in functions related to FPU state handling like `do_xsave_fpu` and `helper_fxsave`. These are parts of TCG (Translation Cache Generator) which is responsible for emulating CPU instructions. The fact that it's happening in the TCG code suggests that it's not a user-mode issue because TCG deals with lower-level emulation. + +The plugin uses `qemu_plugin_register_vcpu_mem_cb`, which presumably hooks into memory access on each VCPU instruction. This means the plugin is interacting with the core QEMU virtualization logic, likely at the system level since it's handling CPU instructions and memory accesses that are part of the VM's operation. + +Given that the problem involves core QEMU functionality like CPU state saving and restoring, which are critical for virtual machine execution, this points to a system-mode issue. The plugin is affecting how QEMU handles the virtualized environment, not user applications within the VM. + +So, putting it all together: the crash occurs in system-level code due to interactions with the VCPU memory callbacks provided by the plugin. Therefore, the bug is related to system-mode. +</think> + +system \ No newline at end of file |