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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
commitd0c85e36e4de67af628d54e9ab577cc3fad7796a (patch)
treef8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/deepseek-2/output/hypervisor/1288385
parent7f4364274750eb8cb39a3e7493132fca1c01232e (diff)
downloadqemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz
qemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip
add deepseek and gemma results
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+
+VFIO passthrough causes assertation failure
+
+Since commit 5e95494380ec I am no longer able to passthrough my Nvidia GTX 770 using VFIO. Qemu terminates with:
+
+qemu-system-x86_64: hw/pci/pcie.c:240: pcie_cap_slot_hotplug_common: Assertion `((pci_dev->devfn) & 0x07) == 0' failed.
+
+Above output was generated using commit f55ea6297cc0.
+
+
+Lspci of the vga card:
+
+01:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 770] (rev a1)
+	Subsystem: Gigabyte Technology Co., Ltd Device 360c
+	Kernel driver in use: vfio-pci
+01:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1)
+	Subsystem: Gigabyte Technology Co., Ltd Device 360c
+	Kernel driver in use: vfio-pci
+
+
+Commandline used to start qemu:
+
+qemu-system-x86_64 -machine accel=kvm \
+        -nodefaults \
+        -name VFIO-Test \
+        -machine q35 \
+        -cpu host \
+        -smp 1 \
+        -enable-kvm \
+        -m 1024 \
+        -k de \
+        -vga none \
+        -device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \
+        -device vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on \
+        -device vfio-pci,host=01:00.1,bus=root.1,addr=00.1 \
+        -rtc base=utc \
+        -boot order=d \
+        -device ide-cd,drive=drive-cd-disk1,id=cd-disk1,unit=0 \
+        -drive file=/home/bluebird/Downloads/systemrescuecd-x86-4.0.0.iso,if=none,id=drive-cd-disk1,media=cdrom \
+        -nographic
+
+
+Full output of git bisect:
+
+5e95494380ecf83c97d28f72134ab45e0cace8f9 is the first bad commit
+commit 5e95494380ecf83c97d28f72134ab45e0cace8f9
+Author: Igor Mammedov <email address hidden>
+Date:   Wed Feb 5 16:36:52 2014 +0100
+
+    hw/pci: switch to a generic hotplug handling for PCIDevice
+    
+    make qdev_unplug()/device_set_realized() to call hotplug handler's
+    plug/unplug methods if available and remove not needed anymore
+    hot(un)plug handling from PCIDevice.
+    
+    In case if hotplug handler is not available, revert to the legacy
+    hotplug method for compatibility with not yet converted buses.
+    
+    Signed-off-by: Igor Mammedov <email address hidden>
+    Reviewed-by: Michael S. Tsirkin <email address hidden>
+    Signed-off-by: Michael S. Tsirkin <email address hidden>
+
+:040000 040000 9bdab0d75fbc9be4fe2e4274e58e0cdcd347ac7e d6d6294ea9c06e80a0fc8fcabd6345dfae5137ad M	hw
+:040000 040000 d064d75ca8b8f169c41eee2683082e8f9104e968 f2abbf9bee754ada0f49135968455fd1a69b2186 M	include
+:040000 040000 c515daff6c77f9bd2cc32873be4c5c3a1c20cbb9 c506f5587afe8f7ee129a7ca6e3ae2e5118254f9 M	tests
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