Am 07.01.20 um 19:56 schrieb pior...@gmail.com:
>
>>
>> Can you elaborate why you think this is a bug in udev?
>> Those are kernel messsage, likely a result of a bad optical media or a
>> bad cable.
>
> Thanks for your reply.
> I don't know if this is error in udev or not. I searched and similar
> error ("I/O error, dev sr0, sector 0") has been previously reported
> against udev in 2010.
>
> There is no media inserted, so this cannot be optical media problem.
>
> Albo, bad cable should not be an issue, drive works perfectly fine, it
> reads and writes.
>
> What I am reporting is that Debian *tried* no read /dev/sr0 with no
> media inserted which resulted in critical I/O errors.
>
> What package is responsible for this? I will be happy to re-open this
> bug in appropriate place.
>
Since I'm not able to reproduce the issue, I guess you need to find out
yourself which part of the system triggers this.
As far as udev is concerned, I can only think of the following possible
places:
> $ grep -E "scsi_id|cdrom_id" /lib/udev/rules.d/60-*
> /lib/udev/rules.d/60-cdrom_id.rules:ENV{DISK_EJECT_REQUEST}=="?*",
> RUN+="cdrom_id --eject-media $devnode", GOTO="cdrom_end"
> /lib/udev/rules.d/60-cdrom_id.rules:IMPORT{program}="cdrom_id --lock-media
> $devnode"
> /lib/udev/rules.d/60-persistent-storage.rules:KERNEL=="sd*[!0-9]|sr*",
> ENV{ID_SERIAL}!="?*", IMPORT{program}="scsi_id --export --whitelisted -d
> $devnode", ENV{ID_BUS}="scsi"
> /lib/udev/rules.d/60-persistent-storage.rules:KERNEL=="cciss*",
> ENV{DEVTYPE}=="disk", ENV{ID_SERIAL}!="?*", IMPORT{program}="scsi_id --export
> --whitelisted -d $devnode", ENV{ID_BUS}="cciss"
> /lib/udev/rules.d/60-persistent-storage-tape.rules:SUBSYSTEM=="scsi_generic",
> SUBSYSTEMS=="scsi", ATTRS{type}=="8", IMPORT{program}="scsi_id --sg-version=3
> --export --whitelisted -d $devnode", \
> /lib/udev/rules.d/60-persistent-storage-tape.rules:KERNEL=="st*[0-9]|nst*[0-9]",
> ENV{ID_SERIAL}!="?*", IMPORT{program}="scsi_id --whitelisted --export
> --device=$env{.BSG_DEV}", ENV{ID_BUS}="scsi"
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