Date: Thu, 19 Jan 2012 22:03:18 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: =?ISO-8859-2?Q?L=E1szl=F3_K=E1rolyi?= <laszlo@karolyi.hu> Cc: Alexander Motin <mav@FreeBSD.org>, freebsd-stable@FreeBSD.org Subject: Re: Strange 'hangs' with RELENG_9 Message-ID: <4F187706.90201@FreeBSD.org> In-Reply-To: <C41CA864-08B8-4D38-BAA9-713BD8FB549B@karolyi.hu> References: <4F181FE7.30904@karolyi.hu> <4F18506C.4050604@FreeBSD.org> <C41CA864-08B8-4D38-BAA9-713BD8FB549B@karolyi.hu>
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on 19/01/2012 21:24 László Károlyi said the following: > On 2012.01.19., at 18:18, Andriy Gapon wrote: > >> Please provide output of the following sysctls: >> sysctl kern.eventtimer >> sysctl kern.timecounter > > > [root@sys ~]# sysctl kern.eventtimer > kern.eventtimer.choice: HPET(450) HPET1(450) HPET2(450) LAPIC(400) i8254(100) RTC(0) > kern.eventtimer.et.LAPIC.flags: 15 > kern.eventtimer.et.LAPIC.frequency: 0 > kern.eventtimer.et.LAPIC.quality: 400 > kern.eventtimer.et.i8254.flags: 1 > kern.eventtimer.et.i8254.frequency: 1193182 > kern.eventtimer.et.i8254.quality: 100 > kern.eventtimer.et.HPET.flags: 3 > kern.eventtimer.et.HPET.frequency: 14318180 > kern.eventtimer.et.HPET.quality: 450 > kern.eventtimer.et.HPET1.flags: 3 > kern.eventtimer.et.HPET1.frequency: 14318180 > kern.eventtimer.et.HPET1.quality: 450 > kern.eventtimer.et.HPET2.flags: 3 > kern.eventtimer.et.HPET2.frequency: 14318180 > kern.eventtimer.et.HPET2.quality: 450 > kern.eventtimer.et.RTC.flags: 17 > kern.eventtimer.et.RTC.frequency: 32768 > kern.eventtimer.et.RTC.quality: 0 > kern.eventtimer.periodic: 0 > kern.eventtimer.timer: HPET > kern.eventtimer.idletick: 0 > kern.eventtimer.singlemul: 2 > [root@sys ~]# sysctl kern.timecounter > kern.timecounter.tick: 1 > kern.timecounter.choice: TSC-low(800) HPET(950) i8254(0) ACPI-fast(900) dummy(-1000000) > kern.timecounter.hardware: HPET > kern.timecounter.stepwarnings: 0 > kern.timecounter.tc.ACPI-fast.mask: 4294967295 > kern.timecounter.tc.ACPI-fast.counter: 3649705857 > kern.timecounter.tc.ACPI-fast.frequency: 3579545 > kern.timecounter.tc.ACPI-fast.quality: 900 > kern.timecounter.tc.i8254.mask: 65535 > kern.timecounter.tc.i8254.counter: 27536 > kern.timecounter.tc.i8254.frequency: 1193182 > kern.timecounter.tc.i8254.quality: 0 > kern.timecounter.tc.HPET.mask: 4294967295 > kern.timecounter.tc.HPET.counter: 1224089625 > kern.timecounter.tc.HPET.frequency: 14318180 > kern.timecounter.tc.HPET.quality: 950 > kern.timecounter.tc.TSC-low.mask: 4294967295 > kern.timecounter.tc.TSC-low.counter: 1655163352 > kern.timecounter.tc.TSC-low.frequency: 11772185 > kern.timecounter.tc.TSC-low.quality: 800 > kern.timecounter.smp_tsc: 1 > kern.timecounter.invariant_tsc: 1 I wonder whether there could be an interference between HPET being used as timecounter and HPET being used as an event timer. Alexander, what do you think? László, can you please try changing kern.timecounter.hardware to TSC-low or ACPI-fast? -- Andriy Gapon
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