devd(8) complains loudly when DVD player is empty, possibly due to r298134

[Alan Somers]

"-q" is only really intended for embedded systems that don't use the
standard syslogd or that are extremely concerned about syslogd's pipe
bandwidth and/or CPU usage.  Most people should control devd's chattiness
with /etc/syslog.conf.  This setting is good for most people.  It will log
actions devd takes based on the stuff in /etc/devd/, but not much else.

!devd
*.>=notice                                    /var/log/devd.log

And if you're directing every facility to its own file, you might consider
something like this:

!-devd
user.*                                        /var/log/user.log

-Alan

On Sun, May 1, 2016 at 9:07 AM, Trond Endrestøl <
Trond.Endrestol at fagskolen.gjovik.no> wrote:

> On Wed, 27 Apr 2016 13:46-0400, Scott Long wrote:
>
> > Thanks for the report.  I might be mistaken, but the default system
> > is not configured to direct devd messages to user.info, so I didn’t
> > see this during my development.  However, what you’re reporting is
> > definitely annoying, so Warner Losh and I are working on a solution.
> >
> > Scott
>
> I solved the problem by running devd with -q, i.e. devd_flags="-q" in
> /etc/rc.conf. This should probably be the default anyway.
>
> All of my systems (stable/10) have custom logging where each facility
> has its own file. Also *.*;mark.* is sent to /dev/ttyvb and to the
> central log host. /dev/ttyvb was pretty busy on the log host.
>
> Making devd less chatty does have its merits.
> The next servers I buy will probably exclude a DVD player.
>
> Happy hacking.
>
> > > On Apr 27, 2016, at 1:23 PM, Trond Endrestøl <
> Trond.Endrestol at fagskolen.gjovik.no> wrote:
> > >
> > > Hi,
> > >
> > > The symptoms began after upgrading from stable/10 r298033 to stable/10
> r298573.
> > >
> > > Apr 27 18:40:00 <user.info> [HOSTNAME] devd: Processing event
> '!system=CAM subsystem=periph type=error device=cd0 serial="R8KL6GKC900AFG"
> cam_status="0xcc" scsi_status=2 scsi_sense="70 02 04 01" CDB="00 00 00 00
> 00 00 " '
> > >
> > > These messages are just seconds apart:
> > >
> > > Apr 27 18:40:01 <user.info> [HOSTNAME] devd: Processing event
> '!system=CAM subsystem=periph type=error device=pass1
> serial="R8KL6GKC900AFG" cam_status="0xcc" scsi_status=2 scsi_sense="70 02
> 04 01" CDB="00 00 00 00 00 00 " '
> > > Apr 27 18:40:03 <user.info> [HOSTNAME] devd: Processing event
> '!system=CAM subsystem=periph type=error device=pass1
> serial="R8KL6GKC900AFG" cam_status="0xcc" scsi_status=2 scsi_sense="70 02
> 04 01" CDB="00 00 00 00 00 00 " '
> > > Apr 27 18:40:05 <user.info> [HOSTNAME] devd: Processing event
> '!system=CAM subsystem=periph type=error device=pass1
> serial="R8KL6GKC900AFG" cam_status="0xcc" scsi_status=2 scsi_sense="70 02
> 04 01" CDB="00 00 00 00 00 00 " '
> > >
> > > When I put a CD or DVD in the DVD player, the messages stop. As soon
> > > as I eject the disc, they start appearing again.
> > >
> > > Here's the relevant part from dmesg:
> > >
> > > cd0 at ahcich1 bus 0 scbus1 target 0 lun 0
> > > cd0: <TSSTcorp DVD+-RW SN-208BB D500> Removable CD-ROM SCSI device
> > > cd0: Serial Number R8KL6GKC900AFG
> > > cd0: 150.000MB/s transfers (SATA 1.x, UDMA5, ATAPI 12bytes, PIO
> 8192bytes)
> > > cd0: Attempt to query device size failed: NOT READY, Medium not
> present - tray closed
> > >
> > > This is on a mid-2012 Dell Latitude E5530 with the stock DVD player.
> > >
> > > Upgrading to stable/10 r298705 doesn't resolve this issue.
> > >
> > > Does anyone else see this?
> > >
> > > Maybe r298134 is to blame:
> > >
> > >  stable/10/sys/cam/cam_periph.c
> > >
> > >  MFC r298004:
> > >
> > >  Add a devctl/devd notification conduit for CAM errors that happen at
> the
> > >  periph level.
> > >
> > >  Due to not merging the changes to ata_res_sbuf(), this version is a
> little
> > >  messy.
> > >
> > >  Sponsored by:      Netflix
> > >
> > > http://svnweb.freebsd.org/base?view=revision&revision=298134
>
> --
> +-------------------------------+------------------------------------+
> | Vennlig hilsen,               | Best regards,                      |
> | Trond Endrestøl,              | Trond Endrestøl,                   |
> | IT-ansvarlig,                 | System administrator,              |
> | Fagskolen Innlandet,          | Gjøvik Technical College, Norway,  |
> | tlf. mob.   952 62 567,       | Cellular...: +47 952 62 567,       |
> | sentralbord 61 14 54 00.      | Switchboard: +47 61 14 54 00.      |
> +-------------------------------+------------------------------------+
> _______________________________________________
> freebsd-stable at freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to "freebsd-stable-unsubscribe at freebsd.org"
>