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If you are filing this issue with a regular release please try master as it might already be fixed.

Version, Distribution, Desktop Environment: Fedora 34 pipewire0.2-libs-0.2.7-5.fc34.x86_64 pipewire-0.3.23-2.fc34.x86_64 kernel-debug-core-5.12.0-0.rc3.170.fc35.x86_64

Description of Problem:

Underflow messages in the journal. There seems to be no manifestation of this elsewhere from the user perspective. So it's purely a cosmetic problem as far as I can tell.

How Reproducible: Often.

Steps to Reproduce:

1. mock webkit2gtk3 building while Firefox is locating on various bbc.com websites, initially not playing any audio when the messages first appear.

Actual Results:

Many messages such as:

Mar 17 16:27:03 fmac.local pipewire[2281]: (alsa_output.pci-0000_00_1b.0.analog-stereo-43) client too slow! rate:2048/48000 pos:146350592 status:triggered
Mar 17 16:27:03 fmac.local pipewire[2281]: (alsa_output.pci-0000_00_1b.0.analog-stereo-43) client too slow! rate:2048/48000 pos:146350592 status:triggered
Mar 17 16:27:03 fmac.local pipewire[2281]: (alsa_output.pci-0000_00_1b.0.analog-stereo-43) client missed 1 wakeups
Mar 17 16:30:53 fmac.local pipewire-pulse[1977]: pulse-server 0x560a49a5df80: [Firefox] UNDERFLOW channel:5 offset:475136 underrun:4096
Mar 17 16:31:07 fmac.local pipewire-pulse[1977]: pulse-server 0x560a49a5df80: [Firefox] UNDERFLOW channel:5 offset:1200128 underrun:4096
Mar 17 16:39:08 fmac.local pipewire[2281]: alsa-pcm front:0: snd_pcm_status error: Broken pipe
Mar 17 16:39:09 fmac.local pipewire[2281]: (Firefox-83) client too slow! rate:2048/48000 pos:181155328 status:awake
Mar 17 16:39:09 fmac.local pipewire[2281]: (alsa_output.pci-0000_00_1b.0.analog-stereo-43) client missed 1 wakeups
Mar 17 16:39:09 fmac.local pipewire[2281]: alsa-pcm front:0: snd_pcm_status error: Broken pipe

Expected Results:

None. Mentioned the messages on #pipewire and it was suggested I file an issue.

Additional Info Eg. pw-dump > file (As Attachment Please):

journal.logpwdump.txt