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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/1909')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/1909 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/1909 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1909 new file mode 100644 index 00000000..c9974e60 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1909 @@ -0,0 +1,23 @@ +<think> +Okay, so I'm trying to figure out whether this bug is related to user-mode or system-mode in QEMU. Let's start by understanding what the problem is. + +The issue described involves a test program that segfaults when using QEMU 8.0.0 with coverage counters. The error happens during an instruction where it tries to store a value into a memory address, which seems valid because the previous check shows the address has some data (0x4fe9d0). However, after stepping through, it still causes a segfault. + +Looking at the provided information: + +1. **GDB Output**: The program is trying to increment a coverage counter using `str x8, [x9, #2512]`, where x8 is 1 and x9 points to an address in .bss section. The memory at that address exists but still causes a segfault. + +2. **QEMU Versions**: Using QEMU 6.2.0 works without this particular issue, implying something changed between versions 6.2.0 and 8.0.0 that's causing the problem. + +3. **Coverage Tools**: The test uses gcov with clang, which suggests it's about user-space code coverage rather than kernel or system-level stuff. + +4. **Reproduction Steps**: It involves compiling a program statically with specific target flags for AArch64 and running it under QEMU. This points towards user-mode emulation since it's executing a regular application without OS involvement beyond the emulator. + +5. **Bug Type**: Segfaults in user programs usually relate to how the CPU or memory is emulated in user mode, especially if it's about instruction execution or memory access. + +Considering all this, the problem seems to be within how QEMU 8.0.0 handles certain instructions or memory accesses for user-space applications when coverage tools are involved. Since the crash happens while running a regular application without OS interaction beyond what's provided by the emulator, it's likely a user-mode issue. + +So, classifying this as 'user' because it's about executing user-space code with specific compiler flags and coverage tools. +</think> + +user \ No newline at end of file |