Re: too short/too long (sys/kern_tc.c)


Had this problem for a while.. It seems
to have disappear when booting with acpi enabled??

Dunno what may cause your bug, however I still gets
some of this:

calcru: runtime went backwards from 37004444177421276
usec to 18502193351497934 usec for pid 81026 (zsh)

FreeBSD flick 7.0-CURRENT FreeBSD 7.0-CURRENT #13: Mon
Jan 29 14:05:04 EST 2007
root@flick:/usr/src/sys/i386/compile/CURRENT i386


Are both bugs described correlated?

TIA,
Etienne


--- Eric Anderson <anderson@xxxxxxxxxxx> wrote:

When I boot a -CURRENT box with boot verbose enabled
inside qemu, I see
one of these messages about every second:

15.f68c5ee76faebe10 too short
16.0f822e13092c5580 too long

I can obviously whack the printf's, but what's the
'right way' to fix
this? Set HZ to something? Pick a different timer?

kern.timecounter.tick: 1
kern.timecounter.choice: TSC(800) i8254(0)
dummy(-1000000)
kern.timecounter.hardware: TSC
kern.timecounter.nsetclock: 2
kern.timecounter.ngetmicrotime: 80036
kern.timecounter.ngetnanotime: 0
kern.timecounter.ngetbintime: 0
kern.timecounter.ngetmicrouptime: 29057
kern.timecounter.ngetnanouptime: 109
kern.timecounter.ngetbinuptime: 488
kern.timecounter.nmicrotime: 1708
kern.timecounter.nnanotime: 11
kern.timecounter.nbintime: 1719
kern.timecounter.nmicrouptime: 687
kern.timecounter.nnanouptime: 0
kern.timecounter.nbinuptime: 3734
kern.timecounter.stepwarnings: 0
kern.timecounter.tc.i8254.mask: 4294967295
kern.timecounter.tc.i8254.counter: 7769
kern.timecounter.tc.i8254.frequency: 1193182
kern.timecounter.tc.i8254.quality: 0
kern.timecounter.tc.TSC.mask: 4294967295
kern.timecounter.tc.TSC.counter: 809045640
kern.timecounter.tc.TSC.frequency: 1995115260
kern.timecounter.tc.TSC.quality: 800
kern.timecounter.smp_tsc: 0

FreeBSD 7.0-CURRENT FreeBSD 7.0-CURRENT #3: Fri Feb
23 09:28:20 CST
2007 i386

Eric


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----
Etienne Robillard
7680 de jouvence, La Plaine
J7M-2K9, Québec
Telephone: 450-478-5026
Yahoo Messenger ID: granted14
Skype ID: incidah

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