[mythtv-users] random mythfrontend seqment faults

James Abernathy jfabernathy at gmail.com
Wed Jul 20 19:26:24 UTC 2022


On Wed, Jul 20, 2022 at 3:21 PM glen <glenb at glenb.net> wrote:

> On Wed, 2022-07-20 at 15:17 -0400, James Abernathy wrote:
>
>
>
> On Wed, Jul 20, 2022 at 3:08 PM glen <glenb at glenb.net> wrote:
>
> On Wed, 2022-07-20 at 14:05 -0400, James Abernathy wrote:
>
>
>
> On Wed, Jul 20, 2022 at 1:53 PM Klaas de Waal <klaas.de.waal at gmail.com>
> wrote:
>
>
> Could be the problem reported in issue #593
> https://github.com/MythTV/mythtv/issues/593
> <http://email.mg.glenb.net/c/eJwlzbkOwyAQBNCvMV0QsKyBgiJNunRRek5jyUdkcKT8fZAsTfFmmok2ZBdRktmGaMAIUBpDNk6ngCxK5FJkJhNjEVBlI72mwa1pGSSblrR5uqVGigWThOdeMO0RwSgdOWgnFYTRy5EjWWxp7VMHuA_i0TPNrZyehn3t5flr5fXuWDvat2Ou9Uy1Aw2Qw1777azpqP35qnQ_pj8WYjsC>
> although that only mentions master.
> Even better than a gdb trace is a sequence with which the problem can be
> reproduced without relying on specific hardware such as described in #593.
> If it can be reproduced on a VM and that VM can also be easily
> configured/installed/copied that would help.
>
> Klaas.
>
>
> Okay, I can generate the steps to reproduce.  My VM is libvirt/KVM./QEMU
> on Linux Mint Debian Edition 5 which is based on Bullseye. I have a network
> bridge setup for the PC so the VM can be setup on the same subnet as the
> host.  That way I can connect to my HDHR tuners so I can fully test the
> backend and frontend.
>
> I'll have to post my scripts for the backend setup to my Google Drive due
> to the email size limit that Mythtv mailing list has.
>
> I can do either Archlinux or Debian Testing (bookworm). Any choice in that
> for you?
>
> Jim A
>
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>
>
> from the aur on arch, this comment:
>
> bauner [1] added the following comment to mythtv [2]:
>
> @boomshalek
> @hamelg
>
> Uninstalling libva-vdpau-driver fixed the frontend segfault for me
> (Nvidia GT710 with 470.129.06 driver)
>
>
> I saw that comment . In my case I'm completely Intel hardware and it's a
> VM within that.   The only solution I've found is to start with --noupnp on
> mythfrontend, but that doesn't explain the seq faults occasionally on
> mythtv-setup.
>
> Jim A
>
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>
>
> thats a libva (intel) driver they are talking about. it accommodates vdpau
> calls. so maybe still check if by any chance thats installed.
>

I build my mythtv on Archlinux without the AUR so I can just disable the
vdpau option in the configure.  I'll see what that does

Jim A
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