Date: Mon, 13 Feb 2006 17:15:08 -0600 From: "J. Buck Caldwell" <buckaroo@bitparts.org> To: freebsd-stable@freebsd.org Subject: Re: calcru: negative time (Interrupt Storm on cpu0: timer) Message-ID: <43F112FC.3040000@bitparts.org> In-Reply-To: <20060213230934.GA1549@scott.blazing.de> References: <20060213230934.GA1549@scott.blazing.de>
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Only time I've ever seen this problem is running on a VMWARE virtual server. Is that the case here? If so, try: sysctl kern.timecounter.hardware=TSC That did the trick for me. Frank Steinborn wrote: > Hello, > > After reboot yesterday, my system suddenly started to flood syslog with > following message: > > calcru: runtime went backwards from 1966191374 usec to 1966189453 usec > for pid 29988 (screen) > > It's not only screen, i saw sh and su also, but in the last hour only > screen. A vmstat -i and the same 5 seconds later: > > interrupt total rate > irq1: atkbd0 1 0 > irq13: npx0 1 0 > irq14: ata0 410366 5 > irq17: em0 20882069 263 > cpu0: timer 158483081 2000 > Total 179775518 2268 > > interrupt total rate > irq1: atkbd0 1 0 > irq13: npx0 1 0 > irq14: ata0 410430 5 > irq17: em0 20885602 263 > cpu0: timer 158505514 2000 > Total 179801548 2268 > > Is this an interrupt storm? I know that there is a FAQ entry about the > negative time issue, but it seems this is more a bad workaround I > guess. The system was running without problems for 3 months or so and > as I said the problem suddenly appeared yesterday. > > Any hints on whats wrong here? > > Thanks in advance, > Frank > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > > >
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