Bug report: https://bugzilla.redhat.com/show_bug.cgi?id=498858
To reproduce, pause a video in mplayer and then hit play:
ALSA sound/core/pcm_lib.c:263: hda_codec: hw_ptr skipping! [Q] (pos=11263, delta=17400, period=1024, jdelta=21/362/0) ALSA sound/core/pcm_lib.c:337: hda_codec: hw_ptr skipping! (pos=11730, delta=1490, period=1024, jdelta=10/31) ALSA sound/core/pcm_lib.c:337: hda_codec: hw_ptr skipping! (pos=11734, delta=1494, period=1024, jdelta=10/31) ALSA sound/core/pcm_lib.c:337: hda_codec: hw_ptr skipping! (pos=11734, delta=1494, period=1024, jdelta=10/31) ALSA sound/core/pcm_lib.c:337: hda_codec: hw_ptr skipping! (pos=11735, delta=1495, period=1024, jdelta=10/31) ALSA sound/core/pcm_lib.c:263: hda_codec: hw_ptr skipping! [Q] (pos=12287, delta=2047, period=1024, jdelta=21/42/0) ALSA sound/core/pcm_lib.c:337: hda_codec: hw_ptr skipping! (pos=12449, delta=2209, period=1024, jdelta=4/46)