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SubjectRe: new processes very slow on otherwise responsive system (2.1.127 and 128)
On Sun, 15 Nov 1998, Simon Kirby wrote:

>I just tried 2.1.129pre1 + arca-19 (less the lp stuff that got rejected),
>and I was able to replicate this problem with the kernel compiled to UP.

You mean that SMP is safe and UP is buggy? I am using SMP over UP machine.
Do I need to recompile UP?

>It just happened 30 seconds ago, actually, and lasted for about 3 minutes.
>During this time, I filled every console I have with current IP values,
>which I will be looking at shortly to see if I can see where the loop is.

Note in arca-19 you can also press CTRL+scroll lock and the PC value will
be the same of wchan in ps lax. This way even if you can' t execute `ps'
you can get where stalled processes are stalling.

>BTW...I triggered this with:
>
>find usr -type f -print | tmp/fork-test 2

Very well.

>("fork-test" posted on linux-kernel not so long ago)

I just saved it infact.

>And it started to freeze up shortly after 11800 children.

Good.

Andrea Arcangeli


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