diff options
Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/runtime/1799200')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/runtime/1799200 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/runtime/1799200 b/results/classifier/qwen3:32b/reasoning/runtime/1799200 new file mode 100644 index 00000000..971314e7 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/runtime/1799200 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting a null pointer dereference in the function tcg_emit_op when they inserted a custom TCG helper function in i386_tr_insn_start. The code they added creates a TCGv_ptr with tcg_const_ptr and then calls gen_helper_mad_exec. Most of the time QEMU runs okay, but with certain software it crashes. + +Looking at the call stack, the crash happens in tcg_emit_op, which is part of TCG (Tiny Code Generator). The problem might be related to how the helper function is being generated or used. The user is using gen_helper_mad_exec, which likely generates a call to a helper function. But if that helper isn't properly set up or if there's an issue with the TCG temporaries, it could lead to invalid operations being generated, causing a null pointer dereference when the code is executed. + +The inserted code creates a TCGv_ptr with the CPU pointer, which is then passed to the helper. If the helper isn't correctly declared or if the TCG operations are not properly handled, this could result in incorrect code generation. For example, if the helper function isn't properly registered or if there's a mismatch in the parameters, TCG might generate invalid operations that dereference a null pointer during execution. + +Since the crash occurs during the execution of generated code (in tcg_emit_op), and it's related to the TCG helper function insertion, this is likely a runtime error. The problem isn't with a syscall or a specific instruction, but rather with how the helper is integrated into the TCG code generation process, leading to invalid code that causes a null pointer dereference at runtime. So the category should be 'runtime'. +</think> + +runtime \ No newline at end of file |