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Diffstat (limited to 'results/classifier/deepseek-r1:32b/reasoning/runtime/856')
| -rw-r--r-- | results/classifier/deepseek-r1:32b/reasoning/runtime/856 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:32b/reasoning/runtime/856 b/results/classifier/deepseek-r1:32b/reasoning/runtime/856 new file mode 100644 index 000000000..200a84ebd --- /dev/null +++ b/results/classifier/deepseek-r1:32b/reasoning/runtime/856 @@ -0,0 +1,15 @@ +<think> +Alright, let's try to figure out how to classify this bug report. The problem occurs when running a threadcount test on QEMU using the sh4-linux-user target. From the provided information, it seems that the system is deadlocking occasionally. + +Looking at the steps to reproduce, they involve building and running QEMU with specific configurations, including some sanitization flags. When the test runs, sometimes it hangs, which means something's causing the program to stop responding or get stuck. + +The backtrace from GDB shows threads waiting on futex operations. Futexes are used for synchronization between threads, so this points towards issues in thread management or synchronization within QEMU. The main thread (thread 1) is in a safe_syscall_base function, which suggests it's handling some system call safely, but it's stuck there. + +Thread 2 is inside the qemu_futex_wait function, waiting on an RCU (Read-Copy-Update) event. This indicates that the RCU mechanism might not be properly releasing or signaling, causing a deadlock. Thread 3 is also in safe_syscall_base but with different arguments, showing another thread stuck in a similar situation. + +Considering all this, the issue seems related to how QEMU handles system calls and thread synchronization, particularly around futex operations used by RCU. Since RCU relies on proper memory management and timely completion of grace periods, any miscommunication here could lead to deadlocks. + +The problem doesn't appear to be a faulty instruction or an error directly in the syscall implementation but rather how these syscalls are being handled in a multithreaded environment during runtime. Therefore, this falls under runtime errors because it's about how QEMU operates and manages threads at runtime. +</think> + +runtime \ No newline at end of file |