On Wed, 2006-08-16 at 21:10 -0400, William W. Austin wrote: > I have a machine which was running FC4, and I installed FC5 on it. > > Same disks (3 sata, 320GB/sata3 on promise card, and 2 240GB/sata1 on > onboard sata (sata_sil driver; 1 160GB eide drive on on-board mb > controller). Same other H/W, same computer. Nothing changes. (athlon > 2500xp+, 2gb ram, scsi tape and scanner - no scsi drives on this box). > > If I boot back to FC4, the problems go away - if I boot FC5, they > occur. > > I have searched both the list and bugzilla but I guess I have not done > a great job because I found a few 'sorta' similar problems but not > these two in partiular - if I missed it and it is there, sorry to waste > the bandwidth. > > Problem 1: firefox CRAWLS. Mozilla, galeon, epiphany and konqueror ALL > load web pages, images, etc. far faster. Time comparison for loading a > local web page (fairly straightforward - text and jpeg images mixed - > but rather large) takes under a second with any of the other browsers, > and takes over 20 seconds with firefox. If I boot back to FC4 and run > 1.0.8.1-1.fc4 it runs essentially the same speed as the other browsers. > I collect astronomy images (primarily very large tiff images), and the > download time delays are short with the other browsers (FC5) but often > more than 15 seconds BEFORE the download starts with firefox. If I > boot back to FC4, the problem goes away. > > Problem 2: I cannot burn a dvd (typical command cdrecord > --dev=/dev/hdc -v -dao -data XYZ.iso) without getting MANY underruns - > about 13 on a DVD with 3GB of data on it. Boot back to FC4 and the > problem goes away. > > The ONLY major difference is that I went ahead and enabled selinux on > the machine when installing FC5, whereas in FC4 I did not (I also have > a dedicated firwall box which theoretically eliminates the need for > selunx, but I wanted to try it). > > So my question is, are these problems (a) known, or (b) peculiar to > selinux, and/or (c) does anybody have a suggestion for a solution? - Is your FC5 fully updated? - Are you getting any avc messages in your /var/log/messages file or /var/log/audit/audit.log file (the former if not running auditd, the latter if running it)? -- Stephen Smalley National Security Agency
