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authorChristian Krinitsin <mail@krinitsin.com>2025-06-03 12:04:13 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-03 12:04:13 +0000
commit256709d2eb3fd80d768a99964be5caa61effa2a0 (patch)
tree05b2352fba70923126836a64b6a0de43902e976a /results/classifier/105/device/2530
parent2ab14fa96a6c5484b5e4ba8337551bb8dcc79cc5 (diff)
downloademulator-bug-study-256709d2eb3fd80d768a99964be5caa61effa2a0.tar.gz
emulator-bug-study-256709d2eb3fd80d768a99964be5caa61effa2a0.zip
add new classifier result
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+device: 0.873
+graphic: 0.844
+vnc: 0.827
+instruction: 0.777
+semantic: 0.568
+socket: 0.566
+network: 0.537
+mistranslation: 0.512
+boot: 0.402
+other: 0.370
+KVM: 0.192
+assembly: 0.138
+
+Duplicate ACPI _SUN
+Description of problem:
+ACPI _SUN is `the slot-unique ID number for a slot`, but qemu uses `PCI_SLOT()` which is definitely not unique
+https://gitlab.com/qemu-project/qemu/-/blob/407f9a4b121eb65166375c410e14d7b704bc1106/hw/i386/acpi-build.c#L524
+Steps to reproduce:
+1. Create a linux VM with 2 virtio NICs
+2. Look at the ACPI _SUN of the virtio-pci devices (firmware_node/sun)
+
+Both virtio-pci devices have _SUN == 0
+```
+#
+Additional information:
+In systemd we recently introduced code to use firmware_node/sun information for NIC naming
+https://github.com/systemd/systemd/commit/0a4ecc54cb9f2d3418b970c51bfadb69c34ae9eb
+
+but having duplicate _SUN is of course problematic
+https://github.com/systemd/systemd/issues/34082