poor social estrategy
Posted Jan 8, 2005 23:36 UTC (Sat) by sbergman27
In reply to: poor social estrategy
Parent article: grsecurity 2.1.0 and kernel vulnerabilities
If you go to google (it's at http://www.google.com) and do a search on:
"vm maintainer" "linux kernel"
(and you can just hit "I'm feeling lucky" because it is the first hit),
you will get a "kernel trap" article.
You can just type "www.kerneltrap.org", though, because this particular example happens to be on the front page of today's kerneltrap.org, thought the article is from Dec 27, 2004.
And it mentions that:
"An interesting dicussion on the lkml examined the efficiency of the inode cache in the 2.4 Linux kernel [forum], discussing several tunables primarily helpful to systems serving large NFS or Samba mounts. In particular, a slowdown was reported on such a system easily reproducible by doing a find / while cat'ing large files to /dev/null. In a discussion between 2.4 maintainer Marcelo Tosatti [interview], 2.6 maintainer Andrew Morton [interview] and VM maintainer Andrea Arcangeli [interview], it was decided that this was likely due to too small of an inode cache hash table resulting in a large number of collisions. For the work case in question, some tunables looked to prove helpful. Going forward, effort might be made in 2.6 or beyond to improve the inode cache."
As to my ditching your original question. do you subscribe to LKML? Do you read it?
That's where I learned this stuff, and you should too.
You ditched my question, however. Why do the grsecurity maintainers, who just released exploit code in the wild without following prescribed procedures, putting us all at risk, not already know all this?(!) How much can we trust you?
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