On Mon, Feb 08, 2010 at 03:41:14PM +0100, Ivan Voras wrote: > On 02/08/10 15:33, Guido Falsi wrote: > > >It looks like it freezes the system for the second or two it takes > >to flush buffers to disk when there are big outputs. This happens > >when decompressiong big distfiles, mainly. The openoffice port > >triggers this almost continuosly every few seconds during compilation. > >I've also seen this when working with big files(for example graphic > >images in uncompressed formats). > > > >It gets very annoying and I don't remember this happening before > >activating the ATA_CAM flag. There was some slowdown with big disk > >access, but not a total freeze. > > I think ZFS does this all the time, i.e. regardless of underlying > device drivers. Can you test your theory by going to an older kernel > and keeping *everything* else the same?
I have made the test and in fact I see the same freezes without ATA_CAM and the legacy ata system. Maybe my idea was due to selective memory :) The other problem at boot still exists with ATA_CAM and does not without it. I'll create a new thread about this as suggested by Jeremy Chadwick. -- Guido Falsi <m...@madpilot.net> _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
