At Thu, 31 Jul 2008 13:24:13 -0500, Timur Tabi wrote:

A customer is reporting that he's seeing this message every now and then, but when I try to examine the kernel source code, I don't see the source of it. In fact, when I do a google search of "alsa-back-porting", I get zero hits. So maybe the customer is using some older kernel, but when I scan the git change history for sound/core/pcm_lib.c, I still don't see it.

So can someone tell me what "alsa-back-porting" means, and where it comes from?

Hm... no certain idea. Might be a warning for using a deprecated function? The alsa-lib version and kernel version of your customer may suggest a bit more...

Takashi