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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:34:26 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:35:44 +0000
commit25f8033d556aa17afaea4a5196ea7a69fe248320 (patch)
tree0f056db167683be54ea1e5e72d29d6069af55e7d /results/classifier/deepseek-2-tmp/reasoning/hypervisor/1826827
parent8e6da29e4ee5fc14bc1cc816a24f21271f14090d (diff)
downloademulator-bug-study-25f8033d556aa17afaea4a5196ea7a69fe248320.tar.gz
emulator-bug-study-25f8033d556aa17afaea4a5196ea7a69fe248320.zip
add new temporary deepseek-r1:14b results
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+<think>
+Okay, let me try to figure this out. So, the bug report is about QEMU crashing when running with a specific machine type and configuration. The problem occurs during device tree generation.
+
+First, I see that the issue starts with `dtc` (device tree compiler) crashing. The error message mentions an assertion failure in `get_node_by_phandle` because it receives a phandle value of 0, which isn't expected unless fixups are needed, but they aren't happening here.
+
+Looking deeper, the problem arises from the function `fdt_get_phandle(fdt, lpc_off)` returning 0. This happens when trying to set the interrupt-parent for the "isa-serial@i3f8" node to the phandle of "lpc@0". Since it can't find the phandle, it defaults to 0.
+
+The user suggests that if they comment out the line setting the interrupt-parent in `pnv_dt_serial`, the crash doesn't happen. This implies that the issue is related to how the device tree nodes are being handled during compilation or generation.
+
+QEMU's role here is in generating the device tree, and since the problem occurs when using the `-machine powernv` option, it's likely an issue with QEMU's handling of PowerPC (PPC) architecture, specifically with the device trees for that machine type.
+
+The possible categories include 'hypervisor', which makes sense because QEMU acts as a hypervisor for PPC machines like powernv. Issues in device tree generation could be part of the hypervisor setup or management.
+</think>
+
+hypervisor
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