[mythtv-users] mythbackend crashes every 6-7 hours

[Rob Verduijn]

Hi again.

You guys are getting deep into the bowels of kernel/qt/myth. I think I
cannot be much of any assistance here, unless you want some more logs.
If you wish to reproduce the problem localy to study it some more simply
create a circular link in your video storage directory and you will get all
the errors you like.

2010/11/3 Gavin Hurlbut <gjhurlbu at gmail.com>

> > I find this interesting given that the kernel has protections against
> > dereferencing circular symbolic links endlessly.  There is even an errno
> > for it (ELOOP).
>
> That's irrelevant.  It all has to do with how directory scanning is
> implemented.
>
I think it's a good one for trivia


>
> > I find it difficult to imagine that the kernel following circular
> > symbolic links, with it's "too many links" protection built-in was
> > causing so much memory use, so I have to assume that libqt or myth was
> > in fact doing the symbolic link deferencing.  Was that the case?
>

I really have no idea.

>
> Of course our code was doing it.  That code is slated to be
> potentially removed anyways after 0.24, so I'm not going to lose much
> sleep over it.  Just don't put loops in your video filesystem that
> gets scanned, or you are asking for issues.
>
Yup I learned my lesson.

>
> > In that light, if my assumptions are correct, I'd call this one a bug.
>
I think more an exception that hasn't been caught yet.


>
> Go ahead and call it a bug.  But the workaround for now is to not have
> silly choices in your use of your filesystem. :)
>
I think it was more a decision based on ignorance and/or not reading the
manual properly.
But you could call that silly to I guess. :P


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Thanx again, I'll quit bothering you now
Rob Verduijn
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