[mythtv-users] Avoid kernel 5.1.x if you use an HD-PVR

glen glenb at glenb.us
Mon Jun 17 02:37:09 UTC 2019

On Sun, 2019-06-16 at 23:13 -0300, Rick wrote:
> On 6/16/2019 9:48 PM, Keith Pyle wrote:
> > We recently installed kernel 5.1.8 on our Myth backend and
> > encountered a hard deadlock in the hdpvr driver.  (It also happens
> > on 5.1.10.)  It is very reproducible and requires nothing more than
> > reading from the HD-PVR (normal capture), even with cat. The
> > process reading from the HD-PVR becomes unkillable.  A reboot is
> > required to restore use.
> > Some initial investigation suggests that there is a mutex deadlock
> > in the hdpvr code.  I've posted a report on the linux-media mailing
> > list asking for assistance.
> > Myth users with an HD-PVR may wish to avoid upgrading to a 5.1
> > kernel for a bit.  There are no pending patches that we could find,
> > so higher kernel versions likely have the same problem at this
> > time.  I don't yet know exactly which kernel introduced the
> > problem, only that 4.1.13 does not show this problem.
> I'm using 5.1.8-300.fc30.x86_64 on mythtv 30 without any trouble. I
> have an hd-pvr master and slave with android frontend.
> Rick_______________________________________________mythtv-users
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i'm on 5.1.9-zen1-1-zen from arch linux and no problem also. but
sometime back i had to disable a few modules thatsound like what you
are seeing. i have blacklisted the following for some time now:
blacklist lirc_ziloginstall rc_core /bin/falseinstall rc_hauppauge
maybe by now that is no longer necessary but i control my box via
firewire so i have just left the file in modprobe.d

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