[mythtv-users] HDPVR Causing Backend to Hard Freeze
Jason Sharpe
mythtv.list at gmail.com
Mon May 24 20:16:08 UTC 2010
> Date: Mon, 24 May 2010 11:22:37 -0500
> From: Johnny Walker <johnnyjboss at gmail.com>
> Subject: Re: [mythtv-users] HDPVR Causing Backend to Hard Freeze
> To: Discussion about mythtv <mythtv-users at mythtv.org>
> Message-ID:
> <AANLkTilPeoGbXxGRBAgfeFd6mhijMrsuzgmb-2LzLiZL at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> On Mon, May 24, 2010 at 11:16 AM, Jason Sharpe <mythtv.list at gmail.com>
> wrote:
> >
> >>
> >> Message: 18
> >> Date: Mon, 24 May 2010 11:36:17 -0400
> >> From: Greg <greg12866 at nycap.rr.com>
> >> Subject: Re: [mythtv-users] HDPVR Causing Backend to Hard Freeze
> >> To: Discussion about mythtv <mythtv-users at mythtv.org>
> >> Message-ID: <4BFA9CF1.5040204 at nycap.rr.com>
> >> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
> >>
> >> On 05/24/2010 09:47 AM, Jason Sharpe wrote:
> >> >
> >> > Date: Sun, 23 May 2010 23:43:35 -0500
> >> > From: <mythtv.list at gmail.com <mailto:mythtv.list at gmail.com>>
> >> > Subject: [mythtv-users] HDPVR Causing Backend to Hard Freeze
> >> > To: mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>
> >> > Message-ID:
> >> > <AANLkTik9Zpyq8ZGeHXcEEKNrF8ZOXOqSYFqqVJguPivq at mail.gmail.com
> >> >
> >> > <mailto:AANLkTik9Zpyq8ZGeHXcEEKNrF8ZOXOqSYFqqVJguPivq at mail.gmail.com
> >>
> >> > Content-Type: text/plain; charset="iso-8859-1"
> >> >
> >> > Hello,
> >> >
> >> > I have been fighting this issue for a days now and I wanted to
> >> > throw this
> >> > out there to see if anyone else has seen/heard of anything like
> >> > this. I can
> >> > recreate the issue over and over but I am not sure what is causing
> >> > it.
> >> >
> >> > When one recording is ending on a tuner and another is beginning
> >> > on my HDPVR
> >> > my whole backend hard freezes requiring a push of the reset button
> >> > for the
> >> > PC to come back up.
> >> >
> >> > In Other Words:
> >> > Tuner 1: HD Homerun Records from 09:00 - 10:00
> >> > Tuner 2: HDPVR Has a show starting at 10:00
> >> >
> >> > At 09:59 when the backend should start recording from the HDPVR
> >> > the backend
> >> > hard freezes.
> >> >
> >> > Using that example above, if the HDPVR starts to record at 09:30
> >> > everything
> >> > is fine. It is only when 1 show is ending and another is beginning
> >> > on the
> >> > HDPVR.
> >> >
> >> > I can record from each tuner just fine for multiple shows back to
> >> > back on
> >> > the same tuner without issue, so the tuners work.
> >> >
> >> > Here is the strange thing, the other way around, there is no
> >> > freezing.
> >> >
> >> > Meaning:
> >> > Tuner 1: HDPVR Records from 09:00 - 10:00
> >> > Tuner 2: HD Homerun Has a show starting at 10:00
> >> >
> >> > In that senerio, everything works just fine.
> >> >
> >> > I have elimitated the HD Homerun as the source of the problem by
> >> > trying a
> >> > pcHDTV HD-3000 instead, still freezes.
> >> >
> >> > Details:
> >> > HD Homerun using Tuner 0 (Over the Air ATSC)
> >> > HDPVR and a Dishnetwork ViP 211k receiver (Component and SPDIF)
> >> >
> >> > Note: IR blasting is done via a homebrew serial blaster, I am
> >> > _not_ using
> >> > the HDPVR for blasting.
> >> >
> >> > Both the HD Homerun and the HDPVR are running the latest firmware.
> >> > I was
> >> > going to downgrade the firmware in the HDPVR, but I read that the
> >> > previous
> >> > version had its own problems.
> >> >
> >> > I am running Mythdora 12.23, mythbackend version:
> tags/release-0-23
> >> > [0.23-1.md12 (r24509).
> >> >
> >> > The backend log isn't much help, since when it freezes it can't
> >> > write to it,
> >> > heh (HW Tuner 44 is the HDPVR)
> >> >
> >> > 2010-05-23 21:58:00.784 Reschedule requested for id 0.
> >> > 2010-05-23 21:58:01.977 Scheduled 781 items in 1.2 = 0.01 match +
> >> > 1.17 place
> >> > 2010-05-23 21:58:01.991 scheduler: Scheduled items: Scheduled 781
> >> > items in
> >> > 1.2 = 0.01 match + 1.17 place
> >> > 2010-05-23 21:58:29.861 TVRec(44): ASK_RECORDING 44 29 0 0
> >> > 2010-05-23 21:59:01.227 ProgramInfo(): Updated pathname '':'' ->
> >> > '5389_20100523215900.mpg'
> >> > 2010-05-23 21:59:01.346 TVRec(44): Changing from None to
> >> > RecordingOnly
> >> > 2010-05-23 21:59:01.358 TVRec(44): HW Tuner: 44->44
> >> > 2010-05-23 21:59:02.471 ret_pid(0) child(11739) status(0x0)
> >> > 2010-05-23 21:59:03.484 ret_pid(0) child(11739) status(0x0)
> >> > 2010-05-23 21:59:04.501 ret_pid(0) child(11739) status(0x0)
> >> > 2010-05-23 21:59:05.519 ret_pid(0) child(11739) status(0x0)
> >> > 2010-05-23 21:59:06.536 ret_pid(0) child(11739) status(0x0)
> >> >
> >> > The next line of the log is the backend starting after I had to
> >> > push the
> >> > reset button.
> >> >
> >> > I am at my wits end, any ideas?
> >> >
> >> > Thanks in advance for any help.
> >> >
> >> >
> >> >
> >> > So I spent some more time working on the issue this morning.
> >> >
> >> > I downgraded the firmware of the HDPVR, no change, still hangs as
> >> > described.
> >> >
> >> > I reloaded the newest firmware of the HDPVR into it and changed the
> >> > USB port it was plugged into making sure it was on a different bus, no
> >> > change, still hangs as described.
> >> >
> >> >
> >> >
> >> > _______________________________________________
> >> > mythtv-users mailing list
> >> > mythtv-users at mythtv.org
> >> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >> >
> >> Most people with this problem add a sleep to their channel changing
> >> script...Search this list for hdpvr channel script... I would guess that
> >> is your problem also..
> >
> >
> > Thanks for the reply.
> >
> > I had read that when I got the HDPVR, so since day 1 with the HDPVR I
> have
> > had a 3 sec sleep at the end of the script. I just checked my script and
> > confirmed the 3.0 sec sleep at the end.
> >
> > Any other ideas?
> >
>
> Seeings as you're on Mythdora and I've not used it I was trying to
> stay out of this thread.
>
> However I am curious if you run the backend with '-v most' and
> pastebin the logs and post the link back here if we'd see something
> more meaningful.
>
> Also is .23-release in your version number indicative that you're NOT
> following the fixes branch? Someone with more experience with a fedora
> based OS might want to suggest how to get the fixes branch on your
> box.
>
> -Johnny
>
>
Thanks all to who are replying, I have been troubleshooting all morning.
I updated the kernel hoping it would become more stable, it now is. I am
running kernel.i686 0:2.6.32.12-115.fc12.
Now the backend computer doesn't freeze when I have the problem, so it does
provide more logging. (A side note: it doesn't hang however I lose network
connectivity when this happens, a reboot brings the network back)
I am NOT running the fixes branch of mythtv.
Checking the system log messages, I get this EVERY time the IR Blaster is
accessed, either on backend startup, manually sending commands, or normal
recordings:
May 24 13:40:48 localhost lircd-0.8.6[1780]: accepted new client on
/dev/lircd1
May 24 13:40:48 localhost lircd-0.8.6[1780]: removed client
May 24 13:40:48 localhost lircd-0.8.6[1780]: buffer too small
May 24 13:40:49 localhost lircd-0.8.6[1780]: accepted new client on
/dev/lircd1
May 24 13:40:49 localhost lircd-0.8.6[1780]: removed client
May 24 13:40:49 localhost lircd-0.8.6[1780]: buffer too small
May 24 13:40:49 localhost lircd-0.8.6[1780]: accepted new client on
/dev/lircd1
May 24 13:40:50 localhost lircd-0.8.6[1780]: removed client
May 24 13:40:50 localhost lircd-0.8.6[1780]: buffer too small
running:
[root at mythtv storage] mythbackend -v most > crash.log
irsend: timeout
irsend: timeout
irsend: timeout
irsend: timeout
The timeouts don't appear when the backend starts, they show up when the
script runs to change the channel when another tuner is running.
Note: If no other tuner is recording, I can record from the HDPVR without
issue, that is the confusing part.
You can view the crash.log at: http://pastebin.com/mMWVbrjn
HW Tuner 44 is the HDPVR
The recording starts on line 4081
When this recording starts I am recording something on the HD Homerun
My Channel Change Script is:
#!/bin/bash
PATH=/bin:/usr/bin:/usr/sbin
REMOTE=dish
irsend --device=/dev/lircd1 SEND_START $REMOTE SELECT
sleep 4.0
for digit in `echo $1 | sed 's/\(.\)/\1 \n/g'` ; do
irsend --device=/dev/lircd1 SEND_START $REMOTE $digit
sleep 0.2
done
irsend --device=/dev/lircd1 SEND_START $REMOTE SELECT
sleep 0.2
irsend --device=/dev/lircd1 SEND_START $REMOTE CANCEL
sleep 3.0
The first select is to wake up the receiver if it is asleep, the last cancel
is to get rid of the OSD from the receiver
Thanks again, I would glady by someone a cold case of beer if they have the
answer..:)
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