[Mageia-dev] Video/X/GL/gnome-shell issues?

Fri Jul 27 23:39:48 CEST 2012

On Fri, Jul 27, 2012 at 10:49:51AM +0200, Thierry Vignaud wrote:
+> On 27 July 2012 02:34, Olav Vitters <olav at vitters.nl> wrote:
+> > Problems:
+> > 1. Cannot skip in mplayer (said to be glibc problem)
+> 
+> It is.
+> It first happens when tmb privately offers me to test glibc-2.16.
+> Downgrading glibc to 2.14 reliably makes the issue go away.
+> Of course, it could be a side effect of the new glibc exposing a
+> bug but...
+> 
+> There's nothing interesting in glibc-2.16 branch.
+> FC17 works fine with glibc-2.15.
+
+When mplayer hangs while skipping through a video, strace shows:
+futex(0x25ec004, FUTEX_WAIT_REQUEUE_PI_PRIVATE, 17, NULL, 0x25ec9d0
+
+
+When GNOME shell last hanged the screen completely, strace also had
+something like above:
+futex(XXXX, FUTEX_WAIT_REQUEUE_PI_PRIVATE, 17, NULL, XXX
+
+
+Pretty sure the 17 + FUTEX_WAIT_REQUEUE_PI_PRIVATE were the same.
+
+
+
+Are we missing maybe some glibc patches that Fedora did apply?
+
+Note: I'm wondering if futex is glibc or kernel material. But as I
+removed all old kernels, cannot test that theory anyway.
+-- 
+Regards,
+Olav
+