[mythtv-users] Ticket # 10414
Mario Limonciello
mario.mailing at gmail.com
Fri Nov 16 22:34:14 UTC 2012
On Fri, Nov 16, 2012 at 12:39 PM, Brian Phillips <brian.phillips at byu.net>wrote:
> Mark Greenwood wrote:
> > Something I noticed is that that setting appears to be screwing
> > really badly with the performance of my NFS shares and SSH
> > connections to my myth box. Disabling it seems to have cured the
> > problems I was having. I say seems to as it's only been a day, but
> > I've so far noticed none of the regular pauses I used to have during
> > SSH connections or when transferring files via NFS.
> >
> > Mark
>
> Very interesting, I'll watch for that.
>
> Reading the ticket more in-depth, I noticed Mythbuntu 12.04 is not using
> the
> same version of libhdhomerun as mentioned in the ticket. I went and
> grabbed
> the libhdhomerun from 12.10 and installed it and will monitor any changes
> in
> the performance.
>
> libhdhomerun is actually included directly in mythtv and compiled as
libmythhdhomerun. So grabbing a newer libhdhomerun will only actually help
hdhomerun_config_gui and hdhomerun_config.
That being said I have the same problem as described here even with the
rbuf_max change in the packages. I chatted a little bit with a SD rep in
their IRC channel. They haven't been able to reproduce it themselves but
have gotten a lot of reports from *buntu users and some fedora users.
He says it's most likely a firmware issue.
Current working theory from SD is that nothing on the myth box is
responding to SSDP requests from the HDHR. Normally W7/W8 WMC will respond
to these requests. When they did their testing for Linux they didn't
encounter it maybe because W7/W8 WMC are still on the network and speaking
to the HDHR even if it's just control/status signals while the Linux box is
recording.
All that said, I put this upstart job in place and it seems to have at
least helped the last two nights of recordings that I was previously
encountering problems. It's basically leveraging that workaround that was
mentioned in the ticket on every boot.
#Ping of Death, by mario limonciello
#workaround for http://code.mythtv.org/trac/ticket/10414
#and http://www.silicondust.com/forum/viewtopic.php?t=13227
description "endlessly ping a HDHR prime"
start on net-device-up IFACE!=lo
script
ID=$(hdhomerun_config discover | awk '{ print $6 }')
ping -i 1 -n $ID > /dev/null
end script
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