[TLDR: I'm adding this regression report to the list of tracked regressions; all text from me you find below is based on a few templates paragraphs you might have encountered already already in similar form.]
On 20.06.22 20:49, Ben Hutchings wrote: > I've tested a 5.19-rc3 kernel on top of QEMU/KVM with machine type > pc-q35-5.2. It has a virtio balloon device defined in libvirt as: > > <memballoon model="virtio"> > <address type="pci" domain="0x0000" bus="0x05" slot="0x00" > function="0x0"/> > </memballoon> > > but the virtio_balloon driver fails to bind to it: > > virtio_balloon virtio4: init_vqs: add stat_vq failed > virtio_balloon: probe of virtio4 failed with error -5 > > On a 5.18 kernel with similar configuration, it binds successfully. > > I've attached the kernel config for 5.19-rc3. CCing the regression mailing list, as it should be in the loop for all regressions, as explained here: https://www.kernel.org/doc/html/latest/admin-guide/reporting-issues.html Thanks for the report. To be sure below issue doesn't fall through the cracks unnoticed, I'm adding it to regzbot, my Linux kernel regression tracking bot: #regzbot ^introduced v5.18..v5.19-rc3 #regzbot ignore-activity This isn't a regression? This issue or a fix for it are already discussed somewhere else? It was fixed already? You want to clarify when the regression started to happen? Or point out I got the title or something else totally wrong? Then just reply -- ideally with also telling regzbot about it, as explained here: https://linux-regtracking.leemhuis.info/tracked-regression/ Reminder for developers: When fixing the issue, add 'Link:' tags pointing to the report (the mail this one replies to), as explained for in the Linux kernel's documentation; above webpage explains why this is important for tracked regressions. Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) P.S.: As the Linux kernel's regression tracker I deal with a lot of reports and sometimes miss something important when writing mails like this. If that's the case here, don't hesitate to tell me in a public reply, it's in everyone's interest to set the public record straight.

