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Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/syscall/856')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/syscall/856 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/syscall/856 b/results/classifier/qwen3:32b/reasoning/syscall/856 new file mode 100644 index 00000000..a59a65cb --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/856 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an occasional deadlock in QEMU's linux-user mode when running a threadcount test on sh4. The steps to reproduce involve setting up a Docker container, configuring QEMU with specific options, building it, and then running a test that sometimes deadlocks. + +Looking at the backtrace provided, there are multiple threads involved. The main thread (thread 1) is in safe_syscall_base, which is part of QEMU's safe syscall handling. Thread 2 is in a system call, specifically in syscall(), and it's related to qemu_futex_wait and call_rcu_thread. Thread 3 is also in safe_syscall_base, but with different parameters. + +The key here seems to be the use of futexes (fast user-space mutexes) and the RCU (Read-Copy-Update) mechanism. The threads are waiting on futexes, which suggests that there might be a problem with how QEMU is handling synchronization between threads, especially in the context of system calls. The deadlock might be due to a situation where threads are waiting on each other's locks or futexes, leading to a circular wait. + +The safe_futex function is part of QEMU's syscall handling, which wraps futex calls with error checking. The backtraces show that the threads are stuck in these futex operations. Since the issue is related to the handling of system calls and thread synchronization, this points towards a syscall-related problem. The runtime category is for other runtime errors, but since the problem is specifically tied to syscall handling and futexes, which are system calls, the correct category should be syscall. +</think> + +syscall \ No newline at end of file |