[mythtv-users] mythbackend hanging with busy disk

[HP-mini]

On Sat, 2016-04-23 at 10:45 +0200, Jonatan Lindblad wrote:
> Den 2016-04-08 kl. 21:18, skrev HP-mini:
> > On Fri, 2016-04-08 at 13:09 +1200, HP-mini wrote:
> >> On Thu, 2016-04-07 at 22:50 +0200, Jonatan Lindblad wrote:
> >>> Den 2016-04-07 kl. 07:10, skrev HP-mini:
> >>>
> >>> <snip>
> >>>
> >>>> A 3rd can be due to a process consuming all RAM & then eating swap space
> >>>> until a kernel out-of-memory protection mechanism kills the rogue
> >>>> process.
> >>>> This can take a couple minutes to clear.
> >>>> Mythfrontend does this (here) when using RSS news feeds to access
> >>>> Gizmodo website (crash seems to be in Qt5).
> >>>
> >>> Can you give more details on the URLs, Qt version, and if possible a backtrace?  Have you tried clearing the cache, e.g. ~/.mythtv/cache/mythfrontend-<hostname>?
> >>>
> >> Apologies to OP for the thread hijack..
> >>
> >> url: "http://feeds.gawker.com/gizmodo/full"
> >> The FE crash is in libQt5WebKit.so  version 5.1.1-1ubuntu8
> >> The crash occurs after some initial components of the selected RSS
> >> item's page are rendered.
> >> The cache had/has been cleared several times.
> >
> > The above URL is the RSS feed which works in mythtv "News". The target
> > website does not (http://gizmodo.com).
> > I built a small test program (using libqt5webkit) that opens/displays
> > that URL.. works perfectly.
> 
> That is strange. It works without issues for me with libqt5webkit5 5.5.1+dfsg-2.
> 
> Jonatan
> _______________________________________________

That's good to know, an upgrade to later Qt is option.
Interestingly (or not), the FE rendered over ssh (-X -C) on a weak intel
netbook does not crash the FE while navigating news RSS & gizmodo
website.
Thanks for checking that problem site works for you.