From d0c85e36e4de67af628d54e9ab577cc3fad7796a Mon Sep 17 00:00:00 2001 From: Christian Krinitsin Date: Thu, 3 Jul 2025 07:27:52 +0000 Subject: add deepseek and gemma results --- results/classifier/deepseek-2/reasoning/hypervisor/650 | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 results/classifier/deepseek-2/reasoning/hypervisor/650 (limited to 'results/classifier/deepseek-2/reasoning/hypervisor/650') diff --git a/results/classifier/deepseek-2/reasoning/hypervisor/650 b/results/classifier/deepseek-2/reasoning/hypervisor/650 new file mode 100644 index 00000000..dd01ff58 --- /dev/null +++ b/results/classifier/deepseek-2/reasoning/hypervisor/650 @@ -0,0 +1,15 @@ + +Alright, let me try to figure out how to classify this bug report. The user is reporting an issue with QEMU where using the `device_add` command causes a deadlock. They mentioned that it hangs and only stopping via `kill -9` works. + +Looking at the details, they traced the problem to functions related to RCU (Read-Copy-Update). Specifically, `drain_call_rcu` is waiting indefinitely for `drain_complete_event`. Also, `cpu_exec` in `accel/tcg/cpu-exec.c` calls `rcu_read_lock` but doesn't unlock it properly. This could mean that the lock isn't being released, leading to a deadlock because other parts of the code are waiting on it. + +Another point is that when they use the `stop` command before `device_add`, there's no hang. That suggests that `cpu_exec` might be in a state where it's not releasing locks properly during certain operations. + +Now, considering the possible categories: The issue seems related to how RCU is being handled, which ties into concurrency and synchronization within QEMU. Since this involves kernel-level functions like `rcu_read_lock`, it's likely part of the hypervisor's operation. Hypervisors handle tasks like device management, CPU execution, and other low-level operations where proper locking and unlocking are critical. + +So, putting it all together, the category that best fits is "hypervisor" because the bug occurs in functions that manage resources at a low level, likely within QEMU's hypervisor component. + + +The issue involves deadlocks due to improper RCU handling during device addition, which relates to low-level resource management in QEMU's hypervisor. + +hypervisor \ No newline at end of file -- cgit 1.4.1