Comment 21 for bug 1846539

Revision history for this message
In , david.ward (david.ward-linux-kernel-bugs) wrote :

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 f35bf70f61d389754fafd7fce75efbb3bd2eea87
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.