> From woll...@khavrinen.lcs.mit.edu Mon Sep 13 22:39:37 1999 > > I'm also aware of the possiblity of some people not liking the > > fact that we tsleep() forever (e.g. tsleep(x,x,x,0)). > > I don't have any problem with sleeping forever -- but I am concerned > about the possibility of deadlock, especially when client-NFS is > involved. If the problem just moves around and has harder-to-recover > symptoms, the change isn't helping.
IMHO merely sleeping can't help if we deal with a DoS. Instead of sleeping, kernel should find out where all kernel memory is wasted and free some memory (and, probably, remove/log reason). And, partially, this mechanism is already implemented in ip_drain() and tp_drain(). -- Stas Kisel. UNIX, security, C, TCP/IP, Web. UNIX - the best adventure game http://www.tekmetrics.com/transcript.shtml?pid=20053 http://www.crimea.edu +380(652)510222,230238 ; s...@crimea.edu s...@sonet.crimea.ua ; 2:460/54.4 To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message
