Re: pre-patch-2.0.31 try_to_free_page() messages

Leonard N. Zubkoff (lnz@dandelion.com)
Sun, 1 Jun 1997 10:16:12 -0700


From: alan@lxorguk.ukuu.org.uk (Alan Cox)
Date: Sun, 1 Jun 1997 15:47:49 +0100 (BST)

> Is SMP supposed to be stable now?

SMP should be the same from 2.0.18 upwards. The performance issues
under heavy I/O load (losing serial chars, slipping clock) aren not going to
change in the 2.0.x series. I do intend to put Leonards memory handling tweaks
into the code however.

I assume you're referring to my SMP deadlock patch?

My 2.0.30 SMP deadlock patch has solved the problem 100% for my systems but
some other people still reported problems. However, despite Ingo's posting a
clever new deadlock detection patch, no one has reported tracking down any of
the remaining deadlocks.

If we ever expect to find any deadlocks that remain, people who actually run
into them are going to have to assist in tracking them down, or provide
reproducible test cases so others can.

Leonard