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    SubjectRe: [GIT PULL] sound updates for 5.16-rc1
    On Wed, 17 Nov 2021 18:48:26 +0100,
    Kirill A. Shutemov wrote:
    >
    > On Wed, Nov 17, 2021 at 05:24:28PM +0100, Takashi Iwai wrote:
    > > On Wed, 17 Nov 2021 17:18:55 +0100,
    > > Kirill A. Shutemov wrote:
    > > >
    > > > On Wed, Nov 03, 2021 at 11:24:10AM +0100, Takashi Iwai wrote:
    > > > > Linus,
    > > > >
    > > > > please pull sound updates for v5.16-rc1 from:
    > > > >
    > > > > git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git tags/sound-5.16-rc1
    > > > >
    > > > > The topmost commit is df0380b9539b04c1ae8854a984098da06d5f1e67
    > > > >
    > > > > ----------------------------------------------------------------
    > > > >
    > > > > sound updates for 5.16-rc1
    > > > >
    > > > > Lots of code development have been see in ASoC side as usual, while
    > > > > the continued development on memalloc helper and USB-audio low-
    > > > > latency support are found in the rest. Note that a few changes in the
    > > > > unusual places like arch/sh are included, which are a part of ASoC DAI
    > > > > format cleanups.
    > > > >
    > > > > ALSA core:
    > > > > - Continued memallloc helper updates and cleanups, now supporting
    > > > > non-coherent and non-contiguous pages
    > > > > - Fixes for races in mixer OSS layer
    > > > >
    > > > > ASoC:
    > > > > - A new version of the audio graph card which supports a wider range
    > > > > of systems
    > > > > - Several conversions to YAML DT bindings
    > > > > - Continuing cleanups to the SOF and Intel code
    > > > > - Move of the Cirrus DSP framework into drivers/firmware to allow for
    > > > > future use by non-audio DSPs
    > > > > - An overhaul of the cs42l42 driver, correcting many problems
    > > > > - DAI format terminology conversions over many drivers for cleanups
    > > > > - Support for AMD Vangogh and Yelow Cap, Cirrus CS35L41, Maxim
    > > > > MAX98520 and MAX98360A, Mediatek MT8195, Nuvoton NAU8821, nVidia
    > > > > Tegra210, NXP i.MX8ULP, Qualcomm AudioReach, Realtek ALC5682I-VS,
    > > > > RT5682S, and RT9120 and Rockchip RV1126 and RK3568
    > > > >
    > > > > USB-audio:
    > > > > - Continued improvements on low-latency playback
    > > > > - Quirks for Pioneer devices, Line6 HX-Stomp XL, Audient iD14
    > > > >
    > > > > HD-audio:
    > > > > - Reduce excessive udelay() calls on Intel platforms; this should
    > > > > reduce the CPU load with PulseAudio
    > > > > - Quirks for HP and Clevo laptops
    > > > >
    > > > > FireWire:
    > > > > - Support for meter information on MOTU
    > > > >
    > > >
    > > > ...
    > > >
    > > > > Takashi Iwai (29):
    > > > > ALSA: hda: Reduce udelay() at SKL+ position reporting
    > > > > ALSA: hda: Use position buffer for SKL+ again
    > > > > ALSA: usb-audio: Restrict rates for the shared clocks
    > > > > ALSA: usb-audio: Fix possible race at sync of urb completions
    > > > > ALSA: usb-audio: Rename early_playback_start flag with lowlatency_playback
    > > > > ALSA: usb-audio: Disable low-latency playback for free-wheel mode
    > > > > ALSA: usb-audio: Disable low-latency mode for implicit feedback sync
    > > > > ALSA: usb-audio: Check available frames for the next packet size
    > > > > ALSA: usb-audio: Add spinlock to stop_urbs()
    > > > > ALSA: usb-audio: Improved lowlatency playback support
    > > >
    > > > This commit breaks audio playback for me. The sample plays for fraction of
    > > > a second than stops.
    > > >
    > > > I use SMSL SA300. Let me know what ifo is needed to track it down.
    > > >
    > > > Also I can test potential fixups if needed.
    > >
    > > Could you give alsa-info.sh output with the device? Run the script
    > > with --no-upload option, and attach the output.
    >
    > Attached. I run it on kernel without the commit. I hope it is fine.
    >
    > One note: I use monolitic kernel without CONFIG_MODULES. The script
    > complained about missing /proc/asound/modules and other modules related
    > stuff.

    It's a known problem I forgot, but this doesn't matter much.

    > > Also /proc/asound/card*/stream* file for that usb device, too,
    > > please.
    >
    > Attached.

    Thanks!

    > > And, which environment are you testing, more exactly? Which platform,
    > > and with PulseAudio, pipewire, JACK, or direct ALSA device use?
    >
    > Nothing fancy. Direct ALSA. I tested with 'speaker-test -c2 -t wav' during
    > bisect.

    Did you notice the problem with other applications, too?

    When you wrote "The sample plays for fraction of a second than
    stops.", it means that the speaker-test program stalls? Or it's
    shorter playbacks?

    Also, please test booting with snd_usb_audio.lowlatency=0 boot
    option. Does it behave like before again?

    > > For checking the behavior, we'd need to check hw_params in
    > > /proc/asound/card*/pcm*/sub*/* for the corresponding device during
    > > playback/capture operations.
    >
    > You need this to be collected when the problem triggers, right?
    > I will follow up with this.

    I'll need to test my device at first. Maybe tomorrow.


    thanks,

    Takashi

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