The HyperNews Linux KHG Discussion Pages

Question: Tunable Kernel Parameters?

Forum: The Linux Kernel Hackers' Guide
Keywords: kernel tuning, file handles, Bus error
Date: Sat, 19 Apr 1997 13:07:40 GMT
From: <>

In a recent comp.os.linux. article I saw a reference to tunable kernel parameters, which I think may help me with a problem I'm having with expireover on a Debian 1.2, Inn 1.4 unoff4 news server.

The gist of the article was that the other fellow's problem may have been caused by running out of file handles, and that file handles were a compile time option.

I'm runnming 2.0.27, 64mb ram, raid 0 on three 2gb drives for /var/spool/news.

News expires fine, but expireover causes errors like:

no memory for named no memory for expireover

then finally:

Bus error

At this point serveral drivers usually die or go zombie and the system has to be restarted.

Monitoring the system with top while expireover is running shows plenty of available memory, with hardly any swap being used out of the 64mb swap space. By available memory, I mean there is about 30 odd mb in the buffer cache.

I've been looking for some docs on tuning kernel parameters like file handles, and can't seem to find it. Can someone please point me in the right direction?

Any other suggestions would be greatly appreciated.


Denny Fox,


1. Feedback: sysctl in Linux by Jukka Santala