Developers split over split-lock detection

Posted Dec 9, 2019 23:46 UTC (Mon) by nix (subscriber, #2304)
In reply to: Developers split over split-lock detection by cesarb
Parent article: Developers split over split-lock detection

> Personally, I think this feature should be enabled by default, since it's a security fix against a local DoS issue, with a compatibility knob for those running systems with trusted but buggy software.

Isn't a SIGBUS also a local DoS? Rather more of one than a 1000-clock stall?

Developers split over split-lock detection

Posted Dec 9, 2019 23:50 UTC (Mon) by corbet (editor, #1) [Link]

The signal only affects the process creating the split lock. The slowdown affects the entire system...