Quote of the week [LWN.net]

It turns out that RCU has no fewer than 11 ways to wait for a grace period, a fact that would have shocked my year-2000 self. But here we are.

— Paul McKenney

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Interesting read...

Posted Dec 30, 2024 10:57 UTC (Mon) by RobertLadyman (guest, #169190) [Link] (3 responses)

The linked page by Paul McKenney is rather a good read, even if you don't undertand the technical bits - it's comforting to see others make the same mistakes as I do when debugging.

Interesting read...

Posted Jan 3, 2025 0:50 UTC (Fri) by PaulMcKenney (✭ supporter ✭, #9624) [Link] (2 responses)

Glad you like it!

And yes, I do make the usual mistakes. In fact, I have had more practice than most at making them. ;-)

Interesting read...

Posted Jan 9, 2025 1:58 UTC (Thu) by gus3 (guest, #61103) [Link] (1 responses)

> I could have saved a few days by more carefully checking my initial instrumentation. Debug code is also code, and thus can also contain bugs!

This ^^^

Interesting read...

Posted Jan 11, 2025 22:15 UTC (Sat) by PaulMcKenney (✭ supporter ✭, #9624) [Link]

True enough!

Of course, you can get into just as much trouble over-engineering diagnostics, this being a real world and all. ;-)