VM doesn't restart properly

[conath]

Describe the issue When my Windows 8.1 VM tries to restart, it hangs instead and lots of the following messages are printed to the console:

UTM[33562:2609718] qemuHasReset, reason = guest-reset
UTM[33562:2609718] Debug JSON recieved <- {
    data =     {
        guest = 1;
        reason = "guest-reset";
    };
    event = RESET;
    timestamp =     {
        microseconds = 330214;
        seconds = 1613568369;
    };
}

Configuration

• UTM Version: 2.0.21
• OS Version: 14.4
• Device Model: iPad Pro 11" A12X
• Is it jailbroken? No.
• How did you install UTM? Xcode, running tethered.

VM Config

QEMU Arguments export

qemu-system-x86_64 
-L /…/UTM.app/qemu 
-S
-qmp tcp:127.0.0.1:4444,server,nowait 
-spice port=5930,addr=127.0.0.1,disable-ticketing,image-compression=off,playback-compression=off,streaming-video=off
-cpu max
-smp cpus=4,sockets=1,cores=4,threads=1 
-machine q35
-accel tcg,thread=multi,tb-size=384,split-wx=on 
-vga qxl 
-global PIIX4_PM.disable_s3=1 
-global ICH9-LPC.disable_s3=1 
-boot order=d 
-m 1536 
-soundhw hda 
-name "Windows 8.1 Pro" 
-device usb-ehci 
-device usb-tablet 
-device usb-mouse 
-device usb-kbd 
-drive "if=none,media=disk,id=drive0,file=/…/Documents/Windows 8.1 Pro.utm/Images/disk-0.qcow2,cache=writethrough" 
-drive if=none,media=cdrom,id=drive1 
-device e1000e,netdev=net0 
-netdev user,id=net0 
-uuid A…4 
-rtc base=localtime 
-device ahci,id=ahci 
-device ide-drive,drive=drive0,bus=ahci.0 
-device ide-drive,drive=drive1,bus=ahci.1 
-vga none 
-device virtio-vga

[conath]

The reason is that I'm building from source using Xcode, which means the version number is slightly more recent.

[osy]

Yeah, I ran into this sometimes as well. I think it's a QEMU issue. Do you hit this always or just occasionally?

[conath]

I have only had this happen consistently with this specific VM. 

[ThatStella7922]

I can repro this reliably on v2.0.22 on Windows 10 and 8.1 on separate .UTMs. Rebooting just leads to a black screen (consistently, always happens) and I have to shut down the vm and reopen the app.

• iPad Pro 11” 2020 (A12Z)
• iPadOS 14.3RC
• Installed with AltStore

the vm i was testing with:

• Windows Embedded 8.1 Industry Pro
• x86_64, q35, 2gb ram, 4 core force multithread, virtio disk

QEMU arguments

qemu-system-x86_64
-L /[...]/App.app/qemu
-S -qmp tcp:127.0.0.1:4444,server,nowait
-vga none
-spice port=5930,addr=127.0.0.1,disable-ticketing,image-compression=off,playback-compression=off,streaming-video=off
-device qxl-vga
-smp cpus=4,sockets=1,cores=4,threads=1
-machine q35,
-accel tcg,thread=multi,tb-size=512,split-wx=on
-global PIIX4_PM.disable_s3=1
-global ICH9-LPC.disable_s3=1
-boot order=d
-m 2048
-device intel-hda
-device hda-duplex
-name "Windows 8.1"
-device usb-ehci
-device usb-tablet
-device usb-mouse
-device usb-kbd
-drive "if=virtio,media=disk,id=drive0,file=/[..]/Documents/Windows 8.1.utm/Images/disk-0.qcow2,cache=writethrough"
-device virtio-net-pci,netdev=net0
-netdev user,id=net0
-device virtio-serial
-device virtserialport,chardev=vdagent,name=com.redhat.spice.0
-chardev spicevmc,id=vdagent,debug=0,name=vdagent
-uuid 9[...]D
-rtc base=localtime

[conath]

I believe the issue is related to the BIOS used with the q35 x86_64 machines. Other configurations (i368 pc) and q35 with custom EFI-BIOS reboot fine.