I have bisected this to the Sound Open Framework support from Intel that was added during the v5.2-rc1 cycle. Specifically, the issue is present beginning with this commit:
For me, this is occurring on a Dell Latitude 7350, running out-of-the-box Fedora 30 or Arch Linux. I see the output from dmesg that others have mentioned and then more -- including a kernel bug involving sst_dsp_dma_put_channel(). I will attach it here.
Liam and Pierre-Louis,
I have bisected this to the Sound Open Framework support from Intel that was added during the v5.2-rc1 cycle. Specifically, the issue is present beginning with this commit:
commit f35bf70f61d3897 54fafd7fce75efb b3bd2eea87
Author: Liam Girdwood <email address hidden>
Date: Fri Apr 12 11:09:03 2019 -0500
ASoC: Intel: Make sure BDW based machine drivers build for SOF
BDW uses hard coded IPC calls to set SSP, not needed in SOF as SSP is
configured via topology.
Signed-off-by: Liam Girdwood <email address hidden>
Signed-off-by: Pierre-Louis Bossart <email address hidden>
Reviewed-by: Takashi Iwai <email address hidden>
Signed-off-by: Mark Brown <email address hidden>
For me, this is occurring on a Dell Latitude 7350, running out-of-the-box Fedora 30 or Arch Linux. I see the output from dmesg that others have mentioned and then more -- including a kernel bug involving sst_dsp_ dma_put_ channel( ). I will attach it here.