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Date:   Wed, 30 Nov 2022 18:37:54 -0800
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Subject: Re: fw_fallback.sh test failed in Debian 11
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To:     "Zhou, Jie2X" <jie2x.zhou@intel.com>,
        "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
CC:     "shuah@kernel.org" <shuah@kernel.org>,
        "mcgrof@kernel.org" <mcgrof@kernel.org>,
        "Zhang, Tianfei" <tianfei.zhang@intel.com>,
        "linux-kselftest@vger.kernel.org" <linux-kselftest@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "Li, Philip" <philip.li@intel.com>
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From:   Russ Weight <russell.h.weight@intel.com>
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On 11/30/22 17:28, Zhou, Jie2X wrote:
>> How much of this path exists on your machine?
>> /sys/devices/virtual/misc/test_firmware/trigger_request
> This path exists.
>
>> And is there anything in the dmesg output that indicates a failure associated with
>> the test_firmware device?
> Yes.
>
> kern  :info  : [   77.858068] test_firmware: loading 'test-firmware.bin'
> kern  :info  : [   77.864705] test_firmware: loaded: 8
> kern  :info  : [   77.874250] test_firmware: loading 'test-firmware.bin'
> kern  :warn  : [   77.880672] misc test_firmware: Direct firmware load for test-firmware.bin failed with error -2
> kern  :info  : [   77.890106] test_firmware: load of 'test-firmware.bin' failed: -2
> kern  :info  : [   78.896662] test_firmware: loading ''
> kern  :info  : [   78.901059] test_firmware: load of '' failed: -22
> kern  :info  : [   78.907422] test_firmware: loading ''
> kern  :err   : [   78.912278] test_firmware: failed to async load firmware
> kern  :info  : [   78.918594] test_firmware: loading 'nope-test-firmware.bin'
> kern  :warn  : [   78.925405] misc test_firmware: Direct firmware load for nope-test-firmware.bin failed with error -2
> kern  :info  : [   78.935260] Ignoring firmware sysfs fallback due to sysctl knob

The above message looks like the problem. Firmware sysfs fallback has been turned off
on this system using sysctl. Can you try turning it on and rerunning the test?

Thanks,
- Russ

> kern  :info  : [   78.941934] test_firmware: load of 'nope-test-firmware.bin' failed: -2
> kern  :info  : [   78.962155] test_firmware: loading 'test-firmware.bin'
> kern  :info  : [   78.968232] test_firmware: loaded: 9
> kern  :info  : [   78.986063] test_firmware: loading 'test-firmware.bin'
> kern  :info  : [   78.992269] test_firmware: loaded: 9
> kern  :info  : [   79.023611] test_firmware: reset
> kern  :info  : [   79.028466] test_firmware: batched sync firmware loading 'test-firmware.bin' 4 times
>
> best regards,