** Attachment added: "System hang event @ timestamp 01:45:23 while playing 
video game"
   
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1881432/+attachment/5378819/+files/syslog.5

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https://bugs.launchpad.net/bugs/1881432

Title:
  System hangs after pulseaudio error: "snd_pcm_avail() returned a value
  that is exceptionally large: 125388 bytes (710 ms)"

Status in pulseaudio package in Ubuntu:
  New

Bug description:
  This is a bug on Ubuntu 20.04 (Focal Fossa) for pulseaudio version:
  1:13.99.1-1ubuntu3.2.

  Description:

  At random intervals, pulseaudio gives the following error message:
  "snd_pcm_avail() returned a value that is exceptionally large: 125388
  bytes (710 ms)," after which the system slows down to a crawl. It has
  occurred in two instances: while playing a video game, and while
  working in two different workspaces with a zoom client and Spotify
  open (though not actively playing any audio). The system is
  recoverable with the SysRq key. I have not been able to duplicate it
  on command, but it is recurrent.

  Possible duplicates:

  https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1750947. The
  patch committed to fix this bug was reverted to fix a subsequent bug,
  https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1767784.

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