From: Andrea Arcangeli <andrea@suse.de>
To: Duncan Sands <duncan.sands@math.u-psud.fr>
Cc: linux-kernel@vger.kernel.org
Subject: Re: xine pauses with recent (not -ac) kernels
Date: Sat, 13 Oct 2001 00:15:53 +0200 [thread overview]
Message-ID: <20011013001553.F714@athlon.random> (raw)
In-Reply-To: <01101208552800.00838@baldrick> <20011012161052.R714@athlon.random> <01101300085600.00832@baldrick>
In-Reply-To: <01101300085600.00832@baldrick>; from duncan.sands@math.u-psud.fr on Sat, Oct 13, 2001 at 12:08:56AM +0200
On Sat, Oct 13, 2001 at 12:08:56AM +0200, Duncan Sands wrote:
> On Friday 12 October 2001 4:10 pm, Andrea Arcangeli wrote:
> > On Fri, Oct 12, 2001 at 08:55:28AM +0200, Duncan Sands wrote:
> > > Subject: xine pauses with recent (not -ac) kernels
> > >
> > > Problem: using xine to view an (encrypted) DVD, xine is slow to move
> > > on to the second .vob file: at the end of the first file, it at best
> > > waits a few seconds with a black screen and consuming no CPU, before
> > > moving on to the second file, but sometimes it waits for a long time.
> > >
> > > Correct behaviour: the second .vob file starts playing at once.
> > >
> > > I think this is a kernel problem because it did not occur up to
> > > 2.4.9. The problem appeared between 2.4.10-pre10 and 2.4.10-pre13.
> > > It is present in 2.4.12. It doesn't seem to occur in any -ac kernels.
> > >
> > > linux-2.4.9 : correct
> > > ...
> > > linux-2.4.10-pre10 : correct
> > > linux-2.4.10-pre11 : fails to compile
> > > linux-2.4.10-pre12 : oops during system init
> > > linux-2.4.10-pre13 : problem present
> > > ...
> > > linux-2.4.12 : problem present
> > >
> > > If I replay the DVD several times, the length of the pause varies, and
> > > sometimes it does not occur at all.
> > >
> > > Any ideas?
> >
> > can you reproduce also on 2.4.12aa1?
> >
> > ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.12
> >aa1.bz2
> >
> > Andrea
>
> Yes, it seems to have the same problem. It even seems a bit worse
> (just my impression, I didn't do any statistics).
can you send me a `vmstat 1` during the skips?
are you swapping or making use of applications that uses MAP_SHARED?
Andrea
next prev parent reply other threads:[~2001-10-12 22:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-12 6:55 xine pauses with recent (not -ac) kernels Duncan Sands
[not found] ` <20011012161052.R714@athlon.random>
2001-10-12 22:08 ` Duncan Sands
2001-10-12 22:15 ` Andrea Arcangeli [this message]
2001-10-13 13:24 ` Duncan Sands
2001-10-13 14:10 ` Andrea Arcangeli
2001-10-13 3:51 ` Linus Torvalds
2001-10-13 14:23 ` Andrea Arcangeli
2001-10-13 19:58 ` Duncan Sands
-- strict thread matches above, loose matches on Subject: below --
2001-10-13 19:39 Andrei Lahun
2001-10-13 20:40 Andrei Lahun
2001-10-14 4:31 Chris Rankin
2001-10-17 21:38 Guenter Bartsch
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