Re: Some questions about linux kernel.

From: David Whysong (
Date: Tue Mar 21 2000 - 14:43:24 EST

[ cc list trimmed yet again ]

On Tue, 21 Mar 2000, Richard B. Johnson wrote:
>The rogue program would have to _touch_ all the pages in the system during
>a single time-slice. Once it started using pages in the backing-store,
>this would be impossible because disk I/O sleeps.

Ok, so as long as there is free swap, and the daemon is mlock()'ed, it
should have a chance of killing a rogue program. Fair enough.

But I still think that the OOM killer patch (with optional daemon to set
policy in user-space) is a good idea. The last time I checked (earlier
2.3.x) I could kill my system by running out of memory.

Most people probably don't want to run a daemon, and it makes sense to fix
the kernel, especially since the fix already exists for 2.2.x kernels...

Is that unreasonable?


David Whysong
Astrophysics graduate student University of California, Santa Barbara
My public PGP keys are on my web page -
DSS PGP Key 0x903F5BD6 : FE78 91FE 4508 106F 7C88 1706 B792 6995 903F 5BD6
D-H PGP key 0x5DAB0F91 : BC33 0F36 FCCD E72C 441F 663A 72ED 7FB7 5DAB 0F91

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

This archive was generated by hypermail 2b29 : Thu Mar 23 2000 - 21:00:34 EST