3 ms·

Network performance regressions from TCP SACK vulnerability fixes

• xyzzy_plugh 7y ago
  The article includes no details on what kernel patch they applied, what kernel version is in their AMI, or if they even have SACK enabled. Guess you're on your own, Team Databricks!
  • rxin 7y ago
    More coming next week. We believe we got to the bottom of this last night.
  • rxin 7y ago
    We posted more details just now. Will share more next week too.
  • deleted 7y ago
    [deleted]
• outworlder 7y ago
  If true, this is unfortunate for anyone who was forced to apply their workaround in their systems, due to them being flagged by some "compliance" tool, even though they are not even accessible externally.
• ryacko 7y ago
  Regressions should be expected, because the unpatched code would have less checks to ensure correct operation.