What to do about it?

• Regardless of whether kernel bugs are getting worse

• • ...it would be nice to have fewer of them

• More testing is needed

• • By users!

• Better bug tracking

• • Special tracking for regressions

• Better bug fixing

• • Fixing bugs can be hard work
  • • No access to the hardware – unable to reproduce the problem
  • Developer discipline can be lacking
  • Known bugs often remain unfixed.