Hello, Please consider including upstream commit b7a77235 in the next v3.13.y release. It was included upstream as of v3.15-rc5. It has been tested and confirmed to resolve http://bugs.launchpad.net/bugs/1319457 . commit b7a7723513dc89f83d6df13206df55d4dc26e825 Author: Sander Eikelenboom <linux@xxxxxxxxxxxxxx> Date: Fri May 2 15:09:27 2014 +0200 ALSA: usb-audio: Prevent printk ratelimiting from spamming kernel log while DEBUG not defined This original commit does not apply cleanly to v3.13, so I performed a backport, which is in email 1/1. The backport has been tested and cleanly applies to upstream 3.10.y, 3.11.y, 3.12.y and 3.14.y. The backport is not applicable to longterm stable 3.2.y or 3.4.y. Sander Eikelenboom (1): ALSA: usb-audio: Prevent printk ratelimiting from spamming kernel log while DEBUG not defined sound/usb/pcm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html