Generally speaking you should consider plugging in more memory. In case of heavy swap activities system performance will for sure suffer from encryption. I remember such situations from various kinds of programs that caused intensive swapping. Another supplementary measure is a fresh system installation from time to time. However, program crashs can allways lead to an unresponsive system. This is not the fault of loop-aes as such. A look at ksysguard may help you identifying weak points. Good luck! Best regards Peter -------- Original-Nachricht -------- > Datum: Sat, 2 Aug 2008 23:15:36 +0300 > Von: Jan Klod <janklodvan@xxxxxxxxx> > An: linux-crypto@xxxxxxxxxxxx > Betreff: denial of service problem > Hello, > > it's been some year now since I use loopAES (thanks to Jari!) and it's > hard to > complain. Still, there is one problem really bothering me when using my > laptop: if some application is using encrypted disk IO intensively, it is > even sometimes possible to reach a complete denial of service for ~10 > min!!! > For example, today I managed to achieve it just by starting video player > and > some terrible disk IO began for some reason (swap perhaps). I hate to > reboot... > This might be my main security vulnerability now. > The question I would like to ask: is there some way to balance system > resources consumption such a way, I still have acceptable responsibility > (access shell, lock session etc)? > It might be, I gave too little information, so I'd appreciate some > questions > or ready-usable advices! > > Apparently slow disk IO is the problem, but it IS caused by particular > programs, which could possibly have much lower priority. It is terribly > high > now... > > Have you experienced too slow reaction on session locking requests? What > did > you do? > > Regards, > Jan > > - > Linux-crypto: cryptography in and on the Linux system > Archive: http://mail.nl.linux.org/linux-crypto/ -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
