On 240527 0734, Thomas Huth wrote:
> On 27/05/2024 06.07, Alexander Bulekov wrote:
> > Fixes test-failure on Fedora 40 CI.
> >
> > Reported-by: Thomas Huth <th...@redhat.com>
> > Signed-off-by: Alexander Bulekov <alx...@bu.edu>
> > ---
> > tests/qtest/fuzz/generic_fuzz_configs.h | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/tests/qtest/fuzz/generic_fuzz_configs.h
> > b/tests/qtest/fuzz/generic_fuzz_configs.h
> > index 4d7c8ca4ec..ef0ad95712 100644
> > --- a/tests/qtest/fuzz/generic_fuzz_configs.h
> > +++ b/tests/qtest/fuzz/generic_fuzz_configs.h
> > @@ -150,7 +150,8 @@ const generic_fuzz_config predefined_configs[] = {
> > "-chardev null,id=cd0 -chardev null,id=cd1 "
> > "-device usb-braille,chardev=cd0 -device usb-ccid -device
> > usb-ccid "
> > "-device usb-kbd -device usb-mouse -device usb-serial,chardev=cd1
> > "
> > - "-device usb-tablet -device usb-wacom-tablet -device usb-audio",
> > + "-device usb-tablet -device usb-wacom-tablet "
> > + "-device usb-audio,audiodev=snd0 -audiodev none,id=snd0",
> > .objects = "*usb* *uhci* *xhci*",
> > }
>
> Reviewed-by: Thomas Huth <th...@redhat.com>
>
> The patch makes sense and I think we should include it, thanks! .. but I
> still don't understand why the behavior of the fuzzing job was different
> between Fedora 38 and 40, do you? Why does it complain about "no default
> audio driver available" on F40 but works fine on F38, though both build jobs
> include the Alsa, pulseaudio and OSS backends?
>
Yes that's strange, if the behavior is different.
The full config here is:
.args = "-machine q35 -nodefaults "
"-drive file=null-co://,if=none,format=raw,id=disk0 "
"-device qemu-xhci,id=xhci -device usb-tablet,bus=xhci.0 "
"-device usb-bot -device usb-storage,drive=disk0 "
"-chardev null,id=cd0 -chardev null,id=cd1 "
"-device usb-braille,chardev=cd0 -device usb-ccid -device usb-ccid "
"-device usb-kbd -device usb-mouse -device usb-serial,chardev=cd1 "
"-device usb-tablet -device usb-wacom-tablet "
"-device usb-audio"
This contains "nodefaults", which should always be causing the error,
since this change:
c753bf479a ("audio: disable default backends if -audio/-audiodev is used")
This adds audio to qemu_disable_default_devices, which should be called
by -nodefaults. I wonder if for some reason the order in which the
audiodev is configured and the default audiodev is disabled is different
between builds.
