Re: incorrect usleep/select delays with HZ 2500

2009-09-07 Thread Luigi Rizzo
On Sun, Sep 06, 2009 at 05:36:29PM -0700, Peter Wemm wrote: On Sun, Sep 6, 2009 at 8:51 AM, Luigi Rizzori...@iet.unipi.it wrote: (this problem seems to affect both current and -stable, so let's see if here i have better luck) I just noticed [Note 1,2] that when setting HZ 2500 (even if

Re: svn commit: r196210 - in stable/8/sys: . amd64/include/xen cddl/contrib/opensolaris contrib/dev/acpica contrib/pf dev/ata dev/cxgb dev/sound/usb dev/usb dev/usb/controller dev/usb/input dev/usb/

2009-09-07 Thread pluknet
2009/8/14 Konstantin Belousov k...@freebsd.org: Author: kib Date: Fri Aug 14 11:22:09 2009 New Revision: 196210 URL: http://svn.freebsd.org/changeset/base/196210 Log:  MFC r196206:  Take the number of allocated freeblks into consideration for  softdep_slowdown(), to prevent kernel memory

8.0-BETA4 Available

2009-09-07 Thread Ken Smith
The fourth and most likely final BETA build for the FreeBSD 8.0 release cycle is now available. We expect the next test build to be the first if the Release Candidates, RC1. Since BETA3 many bugs that were identified from testing done so far were addressed. Some of the bigger issues were an

Re: incorrect usleep/select delays with HZ 2500

2009-09-07 Thread Clifton Royston
On Mon, Sep 07, 2009 at 09:21:59AM +0200, Luigi Rizzo wrote: On Sun, Sep 06, 2009 at 05:36:29PM -0700, Peter Wemm wrote: On Sun, Sep 6, 2009 at 8:51 AM, Luigi Rizzori...@iet.unipi.it wrote: (this problem seems to affect both current and -stable, so let's see if here i have better luck)

Re: incorrect usleep/select delays with HZ 2500

2009-09-07 Thread Chuck Swiger
Hi, all-- On Sep 7, 2009, at 12:21 AM, Luigi Rizzo wrote: 3. ?CAUSE an error in tvtohz(), reported long ago in ? ? ? ?http://www.dragonflybsd.org/presentations/nanosleep/ ? ? ? ?which causes a systematic error of an extra tick in the computation ? ? ? ?of the sleep times. ? ?FIX: the above