[BUG]Regression. MixInMixOut. Silent in captured files

[wszypelt]

Describe the bug

TEST DESCRIPTION:
Transfer data with Mix In -> maximum number of MixOuts test as host-host loopback.
MixIn -> multiple MixOuts is used in Linux topology.

    Tested Topology:
    +----+  +--------------------+   +--------------------+
    |    |  | +------+   +-----+ |   | +------+  +------+ |       1
    |    |--->|Copier|-->|MixIn|---+-->|MixOut|->|Copier|--------->+
    |    |  | +------+   +-----+ | | | +------+  +------+ |        |
    |    |  +--------------------+ | +--------------------+        |
    |    |                         |                               |
    |    |                         | ...                           |
    |    |                         |                               |
    |    |                         | +--------------------+        |
    |    |                         | | +------+  +------+ |   N    |
    |    |                         +-->|MixOut|->|Copier|----->|   |
    |    |                           | +------+  +------+ |    |   |
    |HOST|                           +--------------------+    |   |
    |    |                                                     |   |
    |    |  N                                                  |   |
    |    |<--------------------------------------------------- |   |
    |    |                                                         |
    |    |...                                                      |
    |    |                                                         |
    |    | 1                                                       |
    |    |<-------------------------------------------------------+|
    |    |
    |    |
    +----+

    _____________________
    TEST STEPS:
    1. Load FW
    2. Generate playback file
    3. Build topology
    4. Run all pipelines concurrently
    5. Wait for playback stream to finish
    6. Stop all pipelines concurrently
    8. Verify recorded files
    _____________________
    ACCEPTANCE CRITERIA:
    ·       No errors during test
    ·       Successful output files verification

To Reproduce
pytest -s "tests/avs/fw_01_base_fw_modules/test_18_mixers_topologies.py::TestMixinMixout::test_01_18_mixers_max_outputs[channel_count_8-mixout_count_3]"
Reproduction Rate
100%

Impact
After Bisect:
Last passed: SOF_FW_MASTER_01.01.00.4022 (https://quickbuild.igk.intel.com/build/11180522) 2023-01-05 23:31:54
First failed: SOF_FW_MASTER_01.01.00.4025 (https://quickbuild.igk.intel.com/build/11184576) 2023-01-06 23:31:34

Environment

1. Branch name and commit hash of the 2 repositories: sof (firmware/topology) and linux (kernel driver).
   • Kernel: {SHA}
   • SOF: [SOF_FW_MASTER_01.01.00.4059
2. Name of the platform(s) on which the bug is observed.
   • Platform: MTL RVP

Screenshots or console output
logsmixer.zip

[wszypelt]

@ranj063 Can you look at this bug? I think it could be your changes

[mengdonglin]

@wszypelt Can you please clarify which commit introduced this regression?
There are updates on module adapter and Zephyr:
Last Passed: https://quickbuild.igk.intel.com/build/11180522/log
First Failed: https://quickbuild.igk.intel.com/build/11184576/log

[wszypelt]

@mengdonglin Okay, I'll try to clarify which commit introduced this regression

[kv2019i]

MTL only, moving to v2.6

[wszypelt]

@mengdonglin
@abonislawski already found the exact commit that causes this: fba35b1

[lgirdwood]

@ranj063 can you check, looks like we are not copying data for capture.

[wszypelt]

@ranj063 any update?