Re: [PATCH 0/6] qemu: Fix cdrom as SCSI hostdev via -blockdev

Sent: Thursday, October 22, 2020 at 8:54 PM From: "daggs" <daggs(a)gmx.com&gt; To: "Peter Krempa" <pkrempa(a)redhat.com&gt; Cc: libvir-list(a)redhat.com Subject: Re: [PATCH 0/6] qemu: Fix cdrom as SCSI hostdev via -blockdev Greetings Peter, I've built the os with scsi virtio, now I do see the cdrom, see: # ls -lia /sys/bus/scsi/devices total 0 7017 drwxr-xr-x 2 root root 0 Oct 22 2020 . 7015 drwxr-xr-x 4 root root 0 Oct 22 2020 .. 18874 lrwxrwxrwx 1 root root 0 Oct 22 2020 0:0:0:0 -> ../../../devices/pci0000:00/0000:00:1e.0/0000:06:00.0/0000:07:01.0/virtio2/host0/target0:0:0/0:0:0:0 17468 lrwxrwxrwx 1 root root 0 Oct 22 2020 host0 -> ../../../devices/pci0000:00/0000:00:1e.0/0000:06:00.0/0000:07:01.0/virtio2/host0 18051 lrwxrwxrwx 1 root root 0 Oct 22 2020 host1 -> ../../../devices/pci0000:00/0000:00:1f.2/ata1/host1 18099 lrwxrwxrwx 1 root root 0 Oct 22 2020 host2 -> ../../../devices/pci0000:00/0000:00:1f.2/ata2/host2 18147 lrwxrwxrwx 1 root root 0 Oct 22 2020 host3 -> ../../../devices/pci0000:00/0000:00:1f.2/ata3/host3 18195 lrwxrwxrwx 1 root root 0 Oct 22 2020 host4 -> ../../../devices/pci0000:00/0000:00:1f.2/ata4/host4 18243 lrwxrwxrwx 1 root root 0 Oct 22 2020 host5 -> ../../../devices/pci0000:00/0000:00:1f.2/ata5/host5 18291 lrwxrwxrwx 1 root root 0 Oct 22 2020 host6 -> ../../../devices/pci0000:00/0000:00:1f.2/ata6/host6 18835 lrwxrwxrwx 1 root root 0 Oct 22 2020 target0:0:0 -> ../../../devices/pci0000:00/0000:00:1e.0/0000:06:00.0/0000:07:01.0/virtio2/host0/target0:0:0 I've tested with 6.7.0 and 6.8.0 + your patchset, in both the cdrom is visible, in 6.7.0, the guest's dmesg is filled with theses errors: [ 57.510366] sr 0:0:0:0: ioctl_internal_command return code = 8000002 [ 57.510400] sr 0:0:0:0: Sense Key : 0xb [current] [ 57.510403] sr 0:0:0:0: ASC=0x0 ASCQ=0x6 every few seconds these lines are added to the log. with 6.8.0 + your patchset, I see these outputs only few times in the boot process. here is the dmesg: https://dpaste.com/F32A9B92H I've inserted a audio cd and expected the os ui to detected it but it didn't. I assume there is another bug there. anything I can do to help hunting this bug?