[Bug 1851547] [NEW] qemu 4 crashes with this parameter attached -usb -device usb-host, hostbus=1, hostaddr=7 \

[Marietto]

Public bug reported:

Hello.

qemu / kvm does not start anymore after upgrading ubuntu from 19.04 to
19.10 and qemu from 3 to 4,as you can see below. what can I do ?

root@ziomario-Z390-AORUS-PRO:/home/ziomario/Scrivania/OS-KVM# ./boot-OS-
HSP2.sh

----> qemu-system-x86_64: /build/qemu-
UryNDZ/qemu-4.0+dfsg/hw/usb/core.c:720: usb_ep_get: asserzione "dev !=
NULL" non riuscita.

./boot-OS-HSP2.sh: riga 40: 26312 Annullato (core dump creato) qemu-
system-x86_64 -enable-kvm -m 16000 -cpu
Penryn,kvm=on,vendor=GenuineIntel,+invtsc,vmware-cpuid-
freq=on,$MY_OPTIONS -machine pc-q35-2.9 -smp 4,cores=2 -vga none -device
vfio-pci,host=01:00.0,bus=pcie.0,multifunction=on -device vfio-
pci,host=01:00.1,bus=pcie.0 -device vfio-pci,host=01:00.2,bus=pcie.0
-device vfio-pci,host=01:00.3,bus=pcie.0 -usb -device usb-
host,hostbus=1,hostaddr=7 -drive
if=pflash,format=raw,readonly,file=$OVMF/OVMF_CODE.fd -drive
if=pflash,format=raw,file=$OVMF/OVMF_VARS-1024x768.fd -smbios type=2
-device ich9-ahci,id=sata -drive
id=Clover,if=none,snapshot=on,format=qcow2,file=./'Mo/CloverNG.qcow2'
-device ide-hd,bus=sata.2,drive=Clover -device ide-
hd,bus=sata.3,drive=InstallMedia -drive
id=InstallMedia,if=none,file=BaseSystemHS.img,format=raw -drive
id=BsdHDD,if=none,file=/dev/sdg,format=raw -device ide-
hd,bus=sata.4,drive=BsdHDD -netdev
tap,id=net0,ifname=tap0,script=no,downscript=no -device
e1000-82545em,netdev=net0,id=net0,mac=52:54:00:c9:18:27 -monitor stdio

It seems that this line is not good anymore (it worked with qemu 3.x) :

-usb -device usb-host,hostbus=1,hostaddr=7 \

when I removed it,it works. But I need that. With what can I change it ?
You can reproduce that upgrading ubuntu 19.04 to 19.10 because in that
way also qemu will be upgraded from 3 to 4. These are the packages that
I'm using :

root@ziomario-Z390-AORUS-PRO:/home/ziomario# qemu-system-x86_64 --version
QEMU emulator version 4.0.0 (Debian 1:4.0+dfsg-0ubuntu9)

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1851547

Title:
  qemu 4 crashes with this parameter attached -usb -device usb-
  host,hostbus=1,hostaddr=7 \

Status in QEMU:
  New

Bug description:
  Hello.

  qemu / kvm does not start anymore after upgrading ubuntu from 19.04 to
  19.10 and qemu from 3 to 4,as you can see below. what can I do ?

  root@ziomario-Z390-AORUS-PRO:/home/ziomario/Scrivania/OS-KVM# ./boot-
  OS-HSP2.sh

  ----> qemu-system-x86_64: /build/qemu-
  UryNDZ/qemu-4.0+dfsg/hw/usb/core.c:720: usb_ep_get: asserzione "dev !=
  NULL" non riuscita.

  ./boot-OS-HSP2.sh: riga 40: 26312 Annullato (core dump creato) qemu-
  system-x86_64 -enable-kvm -m 16000 -cpu
  Penryn,kvm=on,vendor=GenuineIntel,+invtsc,vmware-cpuid-
  freq=on,$MY_OPTIONS -machine pc-q35-2.9 -smp 4,cores=2 -vga none
  -device vfio-pci,host=01:00.0,bus=pcie.0,multifunction=on -device
  vfio-pci,host=01:00.1,bus=pcie.0 -device vfio-
  pci,host=01:00.2,bus=pcie.0 -device vfio-pci,host=01:00.3,bus=pcie.0
  -usb -device usb-host,hostbus=1,hostaddr=7 -drive
  if=pflash,format=raw,readonly,file=$OVMF/OVMF_CODE.fd -drive
  if=pflash,format=raw,file=$OVMF/OVMF_VARS-1024x768.fd -smbios type=2
  -device ich9-ahci,id=sata -drive
  id=Clover,if=none,snapshot=on,format=qcow2,file=./'Mo/CloverNG.qcow2'
  -device ide-hd,bus=sata.2,drive=Clover -device ide-
  hd,bus=sata.3,drive=InstallMedia -drive
  id=InstallMedia,if=none,file=BaseSystemHS.img,format=raw -drive
  id=BsdHDD,if=none,file=/dev/sdg,format=raw -device ide-
  hd,bus=sata.4,drive=BsdHDD -netdev
  tap,id=net0,ifname=tap0,script=no,downscript=no -device
  e1000-82545em,netdev=net0,id=net0,mac=52:54:00:c9:18:27 -monitor stdio

  It seems that this line is not good anymore (it worked with qemu 3.x)
  :

  -usb -device usb-host,hostbus=1,hostaddr=7 \

  when I removed it,it works. But I need that. With what can I change it
  ? You can reproduce that upgrading ubuntu 19.04 to 19.10 because in
  that way also qemu will be upgraded from 3 to 4. These are the
  packages that I'm using :

  root@ziomario-Z390-AORUS-PRO:/home/ziomario# qemu-system-x86_64 --version
  QEMU emulator version 4.0.0 (Debian 1:4.0+dfsg-0ubuntu9)

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