[alsa-devel] alsa crash with “ ALSA sound/usb/urb.c:179 cannot submit urb (err = -27)” on imx6q sabrelite

[Daniel Mack]

On 02.09.2013 12:51, Ankit Agarwal wrote:
> I am using alsa pcm player to listen to audio. The alsa pcm crashes with
> the error: ALSA sound/usb/urb.c:179 cannot submit urb (err = -27). I am
> able to hear the data initially but when other transaction begins on HID
> report endpoint, alsa crashes with the mentioned error.

-27 == -EFBIG, which seems to relate to a scheduling problem on the bus,
and hence probably rather to a host controller bug than an issue with
snd-usb.

> I am working on imx6q board with linux kernel-3.0.35. I am using Apple
> device to get the digital audio.

Please try with a more recent kernel, and see if you can find the
location where EFBIG is initially reported.


Daniel