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Diffstat (limited to 'results/classifier/deepseek-2/reasoning/mistranslation/1078')
| -rw-r--r-- | results/classifier/deepseek-2/reasoning/mistranslation/1078 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/reasoning/mistranslation/1078 b/results/classifier/deepseek-2/reasoning/mistranslation/1078 new file mode 100644 index 000000000..b5e4f5d5b --- /dev/null +++ b/results/classifier/deepseek-2/reasoning/mistranslation/1078 @@ -0,0 +1,19 @@ +<think> +Alright, let me try to figure out how to classify this bug report for QEMU. The user is having trouble with QEMU not being able to use LPAE (Large Physical Address Extension) on an ARM system. They provided a detailed description of the issue and included steps to reproduce it. + +First, I'll look at the problem they're facing: when running QEMU with a 4GB memory setup using highmem=on, the system fails because the addressing is limited to 32 bits, which can't handle more than 3GB. This suggests an issue with how physical addresses are being handled in the ARM architecture within QEMU. + +They mentioned that they set the physical address bits to 40 if LPAE is enabled but that when ARM_FEATURE_V7VE is present without proper handling, it causes a problem. Their patch seems to adjust how pa_bits is determined, considering both LPAE and V7VE features, which are related to ARM's architectural extensions. + +However, after applying their fix, QEMU hangs. They did some bisecting and found that reverting another commit (39a1fd2528) allows QEMU to boot successfully. That commit was about fixing the handling of LPAE block descriptors in target/arm. This indicates a possible interaction between different parts of the code related to address translation or virtualization. + +Looking at the categories provided: mistranslation, assembly lowering, device, graphic, socket, network, KVM, etc. The issue here is with physical addressing and feature flags (LPAE, V7VE), which are part of the CPU's architecture handling in QEMU, particularly for ARM systems. This seems to fall under the 'mistranslation' category because it involves incorrect mapping or handling of addresses when certain features are enabled. + +Alternatively, since this might be related to how devices or peripherals are handled, but given that it's about address bits and CPU features, I think 'mistranslation' is more accurate. It's not a problem with user-mode assembly lowering, nor does it seem to be a device-specific issue. +</think> + +The bug report involves incorrect handling of physical address bits in the ARM architecture when certain features are enabled, leading to a 32-bit addressing limitation despite having sufficient memory. The issue arises from how LPAE and V7VE features are managed, causing QEMU to fail or hang. This points to an error in the semantic mapping or address translation process within the QEMU codebase. + +**Answer:** + +mistranslation \ No newline at end of file |