[Bug 1871129] Re: htop is blank when using in focal in wsl1

[Balint Reczey]

** Description changed:

+ [Impact]
+ 
+ Programs previously using nanosleep syscall and with glibc 31's update
+ being switched to use clock_nanosleep broke due to clock_nanosleep using
+ CLOCK_REALTIME returns EINVAL in wsl1.
+ 
+ [Test Case]
+ 
+ Run sleep in WSL1 on Windows 10 2004 or older version.
+ The fixed version works correctly, the not fixed version breaks in Focal.
+ 
+ [Regression Potential]
+ 
+ The fix is falling back to using monotonic time ... FIXME
+ 
+ 
+ [Original Bug Text]
+ 
  Right now I am trying Ubuntu 20.04 on WSL and I noticed that when I run
  htop in WSL 1st generation, it is completely blank:
  
  https://user-images.githubusercontent.com/15316889/78563857-31697b00
  -784e-11ea-9f21-338a6cf8cb23.gif
  
  The previous version (htop 2.1.0) works without any issue.
  
  I am using htop 2.2.0-2build1 on Ubuntu 20.04 on WSL1 on Windows 10
  build 19592.1001.

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https://bugs.launchpad.net/bugs/1871129

Title:
  htop is blank when using in focal in wsl1

Status in Ubuntu WSL:
  In Progress
Status in glibc package in Ubuntu:
  Fix Committed
Status in htop package in Ubuntu:
  Invalid

Bug description:
  [Impact]

  Programs previously using nanosleep syscall and with glibc 31's update
  being switched to use clock_nanosleep broke due to clock_nanosleep
  using CLOCK_REALTIME returns EINVAL in wsl1.

  [Test Case]

  Run sleep in WSL1 on Windows 10 2004 or older version.
  The fixed version works correctly, the not fixed version breaks in Focal.

  [Regression Potential]

  The fix is falling back to using monotonic time ... FIXME

  
  [Original Bug Text]

  Right now I am trying Ubuntu 20.04 on WSL and I noticed that when I
  run htop in WSL 1st generation, it is completely blank:

  https://user-images.githubusercontent.com/15316889/78563857-31697b00
  -784e-11ea-9f21-338a6cf8cb23.gif

  The previous version (htop 2.1.0) works without any issue.

  I am using htop 2.2.0-2build1 on Ubuntu 20.04 on WSL1 on Windows 10
  build 19592.1001.

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