[Sound-open-firmware] Question about scheduling IPC task vs pipeline task

[Ranjani Sridharan]

On Wed, 2020-04-22 at 00:05 +0300, Daniel Baluta wrote:
> On Tue, Apr 21, 2020 at 11:59 PM Ranjani Sridharan
> <ranjani.sridharan at linux.intel.com> wrote:
> > 
> > On Tue, 2020-04-21 at 23:55 +0300, Daniel Baluta wrote:
> > > Hi Tomasz,
> > > 
> > > Running aplay I get this timeout, on kernel side:
> > > 
> > > sof-audio-of 3b6e8000.dsp: error: ipc timed out for 0x60040000
> > > size
> > > 12
> > > This is the command for SOF_IPC_STREAM_TRIG_START.
> > 
> > Hi Daniel,
> > 
> > Do you have any further logs in dmesg? Usually, timeouts are
> > followed
> > by any DSP FW exceptions IIRC.
> > Is the DSP still after you see the timeout?
> 
> Indeed, it could make sense that DSP has crashed. The infrastructure
> for traces when DSP
> crashes is not quite implemented on IMX.
> 
> Let me try to add something adhoc.
> 
> Trace on the kernel side is not very helpful:
> 
>    60.140624] sof-audio-of 3b6e8000.dsp: error: ipc timed out for
> 0x60040000 size 12
> [   60.148212] sof-audio-of 3b6e8000.dsp: error: waking up any trace
> sleepers
> [   60.155150]  Port0: ASoC: trigger FE cmd: 1 failed: -110
> [   60.155433] sof-audio-of 3b6e8000.dsp: error: trace IO error
> [   60.684636] sof-audio-of 3b6e8000.dsp: error: ipc timed out for
> 0x60050000 size 12
> [   60.692227] sof-audio-of 3b6e8000.dsp: error: waking up any trace 
You could try sedning a "ping" with the FLOOD_TEST IPC if you have the
debug option enabled to check quickly if the DSP is still alive.

Thanks,
Ranjani