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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/gemma3:12b/kvm/1714331
parent7f4364274750eb8cb39a3e7493132fca1c01232e (diff)
downloademulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz
emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip
add deepseek and gemma results
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+
+Virtual machines not working anymore on 2.10
+
+Using 2.10, my virtual machine(s) don't work anymore. This happens 100% of the times.
+
+-----
+
+I use QEMU compiling it from source, on Ubuntu 16.04 amd64. This is the configure command:
+
+    configure --target-list=x86_64-softmmu --enable-debug --enable-gtk --enable-spice --audio-drv-list=pa
+
+I have one virtual disk, with a Windows 10 64-bit, which I launch in two different ways; both work perfectly on 2.9 (and used to do on 2.8, but I haven't used it for a long time).
+
+This is the first way:
+
+    qemu-system-x86_64
+      -drive if=pflash,format=raw,readonly,file=/path/to/OVMF_CODE.fd
+      -drive if=pflash,format=raw,file=/tmp/OVMF_VARS.fd.tmp
+      -enable-kvm
+      -machine q35,accel=kvm,mem-merge=off
+      -cpu host,kvm=off,hv_vendor_id=vgaptrocks,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time
+      -smp 4,cores=4,sockets=1,threads=1
+      -m 4096
+      -display gtk
+      -vga qxl
+      -rtc base=localtime
+      -serial none
+      -parallel none
+      -usb
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device virtio-scsi-pci,id=scsi
+      -drive file=/path/to/image-diff.img,id=hdd1,format=qcow2,if=none,cache=writeback
+      -device scsi-hd,drive=hdd1
+      -net nic,model=virtio
+      -net user
+
+On QEMU 2.10, I get the `Recovery - Your PC/Device needs to be repaired` windows screen; on 2.9, it boots regularly.
+
+This is the second way:
+
+    qemu-system-x86_64
+      -drive if=pflash,format=raw,readonly,file=/path/to/OVMF_CODE.fd
+      -drive if=pflash,format=raw,file=/tmp/OVMF_VARS.fd.tmp
+      -enable-kvm
+      -machine q35,accel=kvm,mem-merge=off
+      -cpu host,kvm=off,hv_vendor_id=vgaptrocks,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time
+      -smp 4,cores=4,sockets=1,threads=1
+      -m 10240
+      -vga none
+      -rtc base=localtime
+      -serial none
+      -parallel none
+      -usb
+      -device vfio-pci,host=01:00.0,multifunction=on
+      -device vfio-pci,host=01:00.1
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device usb-host,vendorid=0xNNNN,productid=0xNNNN
+      -device virtio-scsi-pci,id=scsi
+      -drive file=/path/to/image-diff.img,id=hdd1,format=qcow2,if=none,cache=writeback
+      -device scsi-hd,drive=hdd1
+      -net nic,model=virtio
+      -net user
+
+On QEMU 2.10, I get the debug window on the linux monitor, and blank screen on VFIO one (no BIOS screen at all); after 10/20 seconds, QEMU crashes without any message.
+On 2.9, this works perfectly.
+
+-----
+
+I am able to perform a git bisect, if that helps, but if this is the case, I'd need this issue to be reviewed, since bisecting is going to take me a lot of time.
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