Bug 1981663
| Summary: | Add support for optional audio drivers | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux Advanced Virtualization | Reporter: | Lili Zhu <lizhu> |
| Component: | qemu-kvm | Assignee: | Virtualization Maintenance <virt-maint> |
| qemu-kvm sub component: | Audio | QA Contact: | Guo, Zhiyi <zhguo> |
| Status: | CLOSED NOTABUG | Docs Contact: | |
| Severity: | low | ||
| Priority: | low | CC: | coli, ddepaula, dyuan, jinzhao, juzhang, kkiwi, kraxel, lmen, virt-maint, zhguo |
| Version: | 8.5 | Keywords: | RFE, Triaged |
| Target Milestone: | rc | ||
| Target Release: | 8.5 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-07-15 14:40:26 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Fo This bug report looks odd. * Why are we testing qemu-6.0.0 on RHEL-8 (non-AV)? * Was this testcase successful before (where?) * can you run qemu with '-audio-help' and check the available drivers? * Is package qemu-audio-pa installed? Thanks, -Klaus (In reply to Klaus Heinrich Kiwi from comment #2) > This bug report looks odd. > > * Why are we testing qemu-6.0.0 on RHEL-8 (non-AV)? > * Was this testcase successful before (where?) > * can you run qemu with '-audio-help' and check the available drivers? > * Is package qemu-audio-pa installed? > > Thanks, > > -Klaus (In reply to Klaus Heinrich Kiwi from comment #2) > This bug report looks odd. > > * Why are we testing qemu-6.0.0 on RHEL-8 (non-AV)? Sorry about mistaking the product, the product has been changed to "RHEL-av" > * Was this testcase successful before (where?) I did not test this testcase before, this case was introduced by an RFE of libvirt. Please refer to Bug #1788807. So I have no idea of the situation before. > * can you run qemu with '-audio-help' and check the available drivers? # /usr/libexec/qemu-kvm -audio-help Environment variable based configuration deprecated. Please use the new -audiodev option. Equivalent -audiodev to your current environment variables: (Since you didn't specify QEMU_AUDIO_DRV, I'll list all possibilities) -audiodev id=none,driver=none > * Is package qemu-audio-pa installed? I did not find qemu-audio-pa rpm build of rhel or centos. Please help to check. Thanks (In reply to Lili Zhu from comment #4) > (In reply to Klaus Heinrich Kiwi from comment #2) > > This bug report looks odd. > > > > * Why are we testing qemu-6.0.0 on RHEL-8 (non-AV)? > Sorry about mistaking the product, the product has been changed to "RHEL-av" > > > * Was this testcase successful before (where?) > I did not test this testcase before, this case was introduced by an RFE of > libvirt. > Please refer to Bug #1788807. So I have no idea of the situation before. I'm having a hard-time connecting the dots here.. There was a blog-post by Gerd showing that libvirt now supports the new standardized '-audiodev' argument to qemu, instead of the old -audio xxx. Then that created a Bugzilla to bring that support to libvirt downstream (why? how was that decided?) And then it created the testcase which resulted in this bug... But so far, I haven't seen any evidence that even 'qemu -audio xxxx' was ever supported to begin with.. > > > * can you run qemu with '-audio-help' and check the available drivers? > # /usr/libexec/qemu-kvm -audio-help > Environment variable based configuration deprecated. > Please use the new -audiodev option. > > Equivalent -audiodev to your current environment variables: > (Since you didn't specify QEMU_AUDIO_DRV, I'll list all possibilities) > -audiodev id=none,driver=none > > > * Is package qemu-audio-pa installed? > I did not find qemu-audio-pa rpm build of rhel or centos. > > Please help to check. Thanks The command above shows that the are no audio drivers compiled.. I couldn't find the build logs for this package to confirm that was by design (I strongly believe it is) - Daniel, is this something you can point us to? And for posterity / education purposes, where can we find the latest compose + build logs from each individual package? I tried browsing brew for them but couldn't find qemu-kvm-6.0.0-23.module+el8.5.0+11740+35571f13.x86_64 Thanks https://brewweb.engineering.redhat.com/brew/packageinfo?packageID=18283 You add qemu-kvm into the package search in brew and it should show up. I can definitely see that particular qemu-kvm build from there. You click on it and you should have access to the build log and etc. About the audio driver: Yes, we're disabling the audio driver list in build time. See http://pkgs.devel.redhat.com/cgit/rpms/qemu-kvm/tree/qemu-kvm.spec?h=stream-av-LP-rhel-8.5.0-advanced-virt It's been this way for the whole RHEL-8 release: http://pkgs.devel.redhat.com/cgit/rpms/qemu-kvm/tree/qemu-kvm.spec?h=stream-8.1-LP-rhel-8.1.0-advanced-virt So I don't think this was ever different. I'm wondering if this test case ever worked. Answering some other questions: qemu-audio-pa is not available downstream. Last but not least, by opening the "virtualization features supported in RHEL" I don't see any reference to audio there. So the question that remains: Did this ever work? If no, and if not supported, do we actually have PM ack to add this feature? (In reply to Danilo Cesar Lemes de Paula from comment #6) > https://brewweb.engineering.redhat.com/brew/packageinfo?packageID=18283 > > You add qemu-kvm into the package search in brew and it should show up. > I can definitely see that particular qemu-kvm build from there. > You click on it and you should have access to the build log and etc. > Thanks, I was having issues with brew's search function. I was able to find the package if I search for a 'build' with the particular string, stripped from arch. https://brewweb.engineering.redhat.com/brew/buildinfo?buildID=1658391 > About the audio driver: Yes, we're disabling the audio driver list in build > time. > See > http://pkgs.devel.redhat.com/cgit/rpms/qemu-kvm/tree/qemu-kvm.spec?h=stream- > av-LP-rhel-8.5.0-advanced-virt > It's been this way for the whole RHEL-8 release: > http://pkgs.devel.redhat.com/cgit/rpms/qemu-kvm/tree/qemu-kvm.spec?h=stream- > 8.1-LP-rhel-8.1.0-advanced-virt > So I don't think this was ever different. I'm wondering if this test case > ever worked. > > Answering some other questions: qemu-audio-pa is not available downstream. > > Last but not least, by opening the "virtualization features supported in > RHEL" I don't see any reference to audio there. > > So the question that remains: Did this ever work? If no, and if not > supported, do we actually have PM ack to add this feature? I guess it's safe to say that we don't support this scenario. We can continue the conversation (here or on virt-devel) but I'll close this issue for now. |
Description of problem: Add support for optional audio drivers Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: Tested with: libvirt-daemon-7.5.0-1.module+el8.5.0+11664+59f87560.x86_64 qemu-kvm-6.0.0-23.module+el8.5.0+11740+35571f13.x86_64 1. prepare a guest using non-root account with the following xml ... <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'> <listen type='address' address='0.0.0.0'/> </graphics> <audio id='1' type='pulseaudio'> <input mixingEngine='yes' fixedSettings='yes' voices='1' bufferLength='100'> <settings frequency='44100' channels='2' format='s16'/> </input> <output mixingEngine='yes' fixedSettings='yes' voices='2' bufferLength='100'> <settings frequency='22050' channels='4' format='f32'/> </output> </audio> ... 2. start the guest $ virsh start avocado-vt-vm1 Domain 'avocado-vt-vm1' started 3. check the qemu cmd line ... -audiodev id=audio1,driver=pa,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=100,out.frequency=22050,out.channels=4,out.format=f32 -vnc 0.0.0.0:1,audiodev=audio1 ... 4. check the pulseaudio daemon $ systemctl --user status pulseaudio ● pulseaudio.service - Sound Service Loaded: loaded (/usr/lib/systemd/user/pulseaudio.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2021-06-28 10:23:05 CST; 42min ago Main PID: 2290 (pulseaudio) CGroup: /user.slice/user-1000.slice/user/pulseaudio.service └─2290 /usr/bin/pulseaudio --daemonize=no --log-target=journal Jun 28 10:23:05 192.168.122.1 systemd[2269]: Starting Sound Service... Jun 28 10:23:05 192.168.122.1 systemd[2269]: Started Sound Service. 5. login the guest, using vlc to play some audio file (can not hear any sound) 6. check the log $ cat /home/lizhu/.cache/libvirt/qemu/log/avocado-vt-vm1.log ... audio: Unknown audio driver `pa' audio: warning: Using timer based audio emulation ... Actual results: can not hear any sound Expected results: Additional info: I checked the build file .... qemu 6.0.0 Directories Install prefix: /usr BIOS directory: share/qemu-kvm firmware path: /usr/share/qemu-firmware binary directory: bin library directory: lib64 module directory: lib64/qemu-kvm libexec directory: libexec include directory: include config directory: /etc local state directory: /var Manual directory: share/man Doc directory: /usr/share/doc Build directory: /builddir/build/BUILD/qemu-6.0.0/qemu_kvm_build Source path: /builddir/build/BUILD/qemu-6.0.0 GIT submodules: Host binaries git: git make: make python: /usr/libexec/platform-python (version: 3.6) sphinx-build: YES genisoimage: smbd: "/usr/sbin/smbd" Configurable features Documentation: YES system-mode emulation: YES user-mode emulation: NO block layer: YES Install blobs: YES module support: YES alternative module path: NO plugin support: NO fuzzing support: NO Audio drivers: Trace backends: dtrace QOM debugging: NO