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authorChristian Krinitsin <mail@krinitsin.com>2025-07-06 16:43:19 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-07-06 16:43:19 +0000
commit238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd (patch)
treecd8a1b75ba7b3543eb7fe6857f408e7be4d9fd0b /results/classifier/deepseek-r1:32b/reasoning/runtime/866
parent96049c939b1916d80532630d63c14e04d5244f1d (diff)
downloademulator-bug-study-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.tar.gz
emulator-bug-study-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.zip
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+<think>
+Okay, I'm trying to classify this bug report into one of three categories: instruction, syscall, or runtime. Let me go through each part carefully.
+
+The problem is about a memory leak happening when creating and destroying threads in a simple C program running on qemu-arm. The user provided steps to reproduce it using QEMU with an ARM toolchain.
+
+First, looking at the code: It's creating and joining threads in a loop. The assert statements are checking if pthread_create and pthread_join succeed, ensuring that each thread returns correctly.
+
+The symptoms show that memory usage keeps increasing until the process crashes due to out-of-memory. This suggests that each iteration is leaving some memory allocated or not properly deallocated, leading to a leak.
+
+Now, considering the categories:
+
+1. **Instruction**: This would involve an issue with specific CPU instructions causing problems. But in this case, the problem seems related to thread management and memory allocation, which isn't directly tied to a particular instruction.
+
+2. **Syscall**: Errors involving system calls could be a possibility. pthread_create and pthread_join are syscalls. If there was an error in how QEMU handles these syscalls, it might cause issues like leaks. However, the user didn't mention any specific syscall errors; instead, the issue is about resource management over time.
+
+3. **Runtime**: This category deals with runtime errors, which could include memory management issues. The continuous increase in memory usage points to a resource leak that isn't being handled properly during thread creation and destruction. Since each thread should be cleaned up after joining, but it's not happening, this is likely a runtime issue.
+
+Valgrind logs were mentioned, but without seeing them, I can only assume they point towards memory leaks rather than specific instruction or syscall errors.
+
+So, the bug seems to stem from improper handling of resources (like threads) during runtime in QEMU. It's about how memory and thread-related resources are managed as the program runs.
+</think>
+
+runtime
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