Date: Wed, 01 Mar 2006 17:06:52 -0500 From: Mike Jakubik <mikej@rogers.com> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: Still seeing "calcru: runtime went backwards" messages Message-ID: <44061AFC.4080109@rogers.com> In-Reply-To: <200603011357.12175.jhb@freebsd.org> References: <4405E745.9040604@rogers.com> <200603011357.12175.jhb@freebsd.org>
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John Baldwin wrote: > On Wednesday 01 March 2006 13:26, Mike Jakubik wrote: > >> FYI, I just did a fresh cvsup and buildworld yesterday night, and i am >> still getting the clacru messages: >> >> Mar 1 02:41:37 fbsd kernel: calcru: runtime went backwards from 32465 >> usec to 32464 usec for pid 490 (sh) >> Mar 1 02:41:37 fbsd kernel: u 0:0/0 s 1:32465/32464 i 0:0/0 >> Mar 1 02:41:37 fbsd kernel: calcru: runtime went backwards from 17198 >> usec to 17197 usec for pid 318 (devd) >> Mar 1 02:41:37 fbsd kernel: u 0:0/0 s 2:17198/17197 i 0:0/0 >> Mar 1 02:45:45 fbsd kernel: calcru: runtime went backwards from 3403872 >> usec to 3403870 usec for pid 722 (perl5.8.8) >> Mar 1 02:45:45 fbsd kernel: u 367:2852102/2852101 s 71:551769/551768 i >> 0:1/1 >> Mar 1 02:45:45 fbsd kernel: calcru: runtime went backwards from 5135265 >> usec to 5135263 usec for pid 1 (init) >> Mar 1 02:45:45 fbsd kernel: u 298:2383658/2383657 s 344:2751606/2751605 >> i 0:1/1 >> > > Try this fix for one. It fixes the case that once time goes backward once > we keep using the last known time rather than using the new shorter time: > > Index: kern_resource.c > =================================================================== > RCS file: /usr/cvs/src/sys/kern/kern_resource.c,v > retrieving revision 1.156 > diff -u -r1.156 kern_resource.c > --- kern_resource.c 22 Feb 2006 16:58:48 -0000 1.156 > +++ kern_resource.c 22 Feb 2006 17:00:38 -0000 > Still seeing them: Mar 1 17:04:27 fbsd kernel: calcru: runtime went backwards from 6995 usec to 6994 usec for pid 662 (perl) Mar 1 17:04:27 fbsd kernel: calcru: runtime went backwards from 31894 usec to 31893 usec for pid 491 (sh) Mar 1 17:04:27 fbsd kernel: calcru: runtime went backwards from 1229911 usec to 1229878 usec for pid 30 (pagezero) Mar 1 17:04:27 fbsd kernel: calcru: runtime went backwards from 21876 usec to 21875 usec for pid 15 (swi5: +) Mar 1 17:04:27 fbsd kernel: calcru: runtime went backwards from 6995 usec to 6994 usec for pid 662 (perl) Mar 1 17:04:27 fbsd kernel: calcru: runtime went backwards from 31894 usec to 31893 usec for pid 491 (sh) Mar 1 17:04:27 fbsd kernel: calcru: runtime went backwards from 1229911 usec to 1229878 usec for pid 30 (pagezero) Mar 1 17:04:27 fbsd kernel: calcru: runtime went backwards from 21876 usec to 21875 usec for pid 15 (swi5: +) Its odd, because they only seem to appear about 2 minutes after the system is booted, and then its quiet.
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