Re: Docs on getting VirGL working with virt-manager?

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On Wed, Feb 20, 2019 at 1:29 AM Cole Robinson <crobinso@xxxxxxxxxx> wrote:
On 2/18/19 7:39 AM, Daniel Kasak wrote:
> On Tue, Feb 19, 2019 at 12:38 AM Cole Robinson <crobinso@xxxxxxxxxx
> <mailto:crobinso@xxxxxxxxxx>> wrote:
>
>     On 2/17/19 10:57 AM, Daniel Kasak wrote:
>     > On Sat, Feb 9, 2019 at 2:05 AM Cole Robinson <crobinso@xxxxxxxxxx
>     <mailto:crobinso@xxxxxxxxxx>
>     > <mailto:crobinso@xxxxxxxxxx <mailto:crobinso@xxxxxxxxxx>>> wrote:
>     >
>     >     On 2/8/19 7:49 PM, Daniel Kasak wrote:
>     >     > I've changed the following from the default:
>     >     >
>     >     > Display Spice:
>     >     >  - Listen type
>     >     >     - Default ( Address ) - no matter what other options I
>     choose with
>     >     > this, I get "SPICE GL support is local-only ..."
>     >     >     - None - I get "Error starting domain: internal error: qemu
>     >     > unexpectedly closed the monitor"
>     >     >
>     >
>     >     This last bit should be the working config, but that error means
>     >     something went wrong launching qemu. pastebin your
>     >     /var/log/libvirt/qemu/$vmname.log and I will check
>     >
>     >
>     > It's taken a while to figure out exactly what's going on here ...
>     there
>     > are *no* logs in that directory. But I caught systemd logging:
>     >   Process 15334 (qemu-system-x86) of user 1000 dumped core.
>     >  ... each time I tried to start the VM.
>     >
>     > I've tried with qemu-3.1.0 and qemu built from git.
>     >
>     > Is there a way to get virt-manager to spit out the exact command line
>     > it's using to invoke qemu?
>
>     Are you using qemu:///session maybe? Then the logs will be in
>     ~/.cache/libvirt/qemu/log/ . The log file is the the canonical location
>     to find the qemu command line that libvirt is generating
>
>
> Aha. I have the command-line now. Thanks :) Full log:

>
> char device redirected to /dev/pts/7 (label charserial0)
> ./run.sh: line 49: 31512 Bad system call         (core dumped) LC_ALL=C
> PATH=/home/dkasak/Applications/.bin:/opt/efl/bin:/usr/lib/llvm/7/bin:/opt/e22/bin:/opt/rocm/bin/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin
> HOME=/home/dkasak USER=dkasak LOGNAME=dkasak QEMU_AUDIO_DRV=spice
> /usr/bin/qemu-system-x86_64 -name guest=Android-x86,debug-threads=on -S
> -machine pc-i440fx-3.1,accel=tcg,usb=off,vmport=off,dump-guest-core=off
> -cpu kvm64 -m 1024 -realtime mlock=off -smp
> 2,sockets=2,cores=1,threads=1 -uuid 3e432cc9-8ce8-4089-912f-8ef50d9a9c8a
> -no-user-config -nodefaults -mon
> chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew
> -global kvm-pit.lost_tick_policy=delay -no-hpet -no-shutdown -global
> PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on
> -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x5.0x7 -device
> ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5
> -device
> ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1
> -device
> ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -drive
> file=/home/dkasak/.local/share/libvirt/images/Android-x86.qcow2,format=qcow2,if=none,id=drive-ide0-0-0
> -device
> ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1
> -drive if=none,id=drive-ide0-0-1,readonly=on -device
> ide-cd,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 -netdev
> user,id=hostnet0 -device
> e1000,netdev=hostnet0,id=net0,mac=52:54:00:74:b8:ea,bus=pci.0,addr=0x3
> -chardev pty,id=charserial0 -device
> isa-serial,chardev=charserial0,id=serial0 -device
> usb-tablet,id=input0,bus=usb.0,port=1 -spice
> port=0,disable-ticketing,image-compression=off,gl=on,rendernode=/dev/dri/renderD128,seamless-migration=on
> -device virtio-vga,id=video0,virgl=on,max_outputs=1,bus=pci.0,addr=0x2
> -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device
> hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev
> spicevmc,id=charredir0,name=usbredir -device
> usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=2 -chardev
> spicevmc,id=charredir1,name=usbredir -device
> usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=3 -device
> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -sandbox
> on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny
> -msg timestamp=on


Does dropping the -sandbox line make things work? Maybe that 'Bad system
call' thing is a seccomp error

It changes things ...

Now qemu just hangs instead of core-dumping :) strace on the process gives:

ppoll([{fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=19, events=POLLIN}], 5, {tv_sec=0, tv_nsec=0}, NULL, 8) = 0 (Timeout)
ppoll([{fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=19, events=POLLIN}], 5, {tv_sec=0, tv_nsec=29564013}, NULL, 8) = 0 (Timeout)
ppoll([{fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=19, events=POLLIN}], 5, {tv_sec=0, tv_nsec=0}, NULL, 8) = 0 (Timeout)
ppoll([{fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=19, events=POLLIN}], 5, {tv_sec=0, tv_nsec=29596135}, NULL, 8) = 0 (Timeout)
ppoll([{fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=19, events=POLLIN}], 5, {tv_sec=0, tv_nsec=0}, NULL, 8) = 0 (Timeout)
ppoll([{fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=19, events=POLLIN}], 5, {tv_sec=0, tv_nsec=29462631}, NULL, 8) = 0 (Timeout)
ppoll([{fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=19, events=POLLIN}], 5, {tv_sec=0, tv_nsec=0}, NULL, 8) = 0 (Timeout)
ppoll([{fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17, events=POLLIN}, {fd=19, events=POLLIN}], 5, {tv_sec=0, tv_nsec=29485905}, NULL, 8) = 0 (Timeout)

etc

Dan
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