Just rebuild v3.15. The message in the subject appears to be at the error level. Sound plays fine. Everything seems to work as intended.
[ 6.779741] snd_hda_intel 0000:00:10.1: Disabling MSI [ 6.781978] ALSA device list: [ 6.781980] No soundcards found. [ 6.785907] snd_hda_intel 0000:00:10.1: CORB reset timeout#1, CORBRP = 0 [ 7.670040] sound hdaudioC0D0: autoconfig: line_outs=1 (0x10/0x0/0x0/0x0/0x0) type:speaker [ 7.670046] sound hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 7.670049] sound hdaudioC0D0: hp_outs=1 (0x11/0x0/0x0/0x0/0x0) [ 7.670052] sound hdaudioC0D0: mono: mono_out=0x0 [ 7.670055] sound hdaudioC0D0: dig-out=0x13/0x0 [ 7.670057] sound hdaudioC0D0: inputs: [ 7.670060] sound hdaudioC0D0: Mic=0x14 [ 8.730734] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:10.1/sound/card0/hdaudioC0D0/input10 [ 8.731256] input: HDA NVidia Front Headphone as /devices/pci0000:00/0000:00:10.1/sound/card0/input11
Is this reason for concern?