Date: Tue, 16 Aug 2016 11:46:50 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 211897] horrible time skew under 10.3-R-p7 Message-ID: <bug-211897-6-JA86TgSypH@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-211897-6@https.bugs.freebsd.org/bugzilla/> References: <bug-211897-6@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211897 --- Comment #1 from Martin S. Weber <freebsd-bugzilla@ayaken.net> --- This is probably the culprit: from my -p7 dmesg: Aug 16 09:28:15 hephaistos kernel: Timecounter "TSC-low" frequency 11098724= 66 Hz quality 1000 vs.=20 Timecounter "TSC-low" frequency 2000036900 Hz quality 1000 on -p4 Here's a grep -i time /var/run/dmesg.boot (i.e., -p4): Event timer "LAPIC" quality 600 hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0 Timecounter "HPET" frequency 14318180 Hz quality 950 Event timer "HPET" frequency 14318180 Hz quality 550 atrtc0: <AT realtime clock> port 0x70-0x77 irq 8 on acpi0 Event timer "RTC" frequency 32768 Hz quality 0 attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0 Timecounter "i8254" frequency 1193182 Hz quality 0 Event timer "i8254" frequency 1193182 Hz quality 100 Timecounter "ACPI-fast" frequency 3579545 Hz quality 900 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1808-0x180b on acpi0 Timecounters tick every 1.000 msec Timecounter "TSC-low" frequency 2000036900 Hz quality 1000 Here's the same for the -p7:=20 Aug 16 09:28:15 hephaistos kernel: Event timer "LAPIC" quality 600 Aug 16 09:28:15 hephaistos kernel: hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0 Aug 16 09:28:15 hephaistos kernel: Timecounter "HPET" frequency 14318180 Hz quality 950 Aug 16 09:28:15 hephaistos kernel: Event timer "HPET" frequency 14318180 Hz quality 550 Aug 16 09:28:15 hephaistos kernel: atrtc0: <AT realtime clock> port 0x70-0x= 77 irq 8 on acpi0 Aug 16 09:28:15 hephaistos kernel: Event timer "RTC" frequency 32768 Hz qua= lity 0 Aug 16 09:28:15 hephaistos kernel: attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0 Aug 16 09:28:15 hephaistos kernel: Timecounter "i8254" frequency 1193182 Hz quality 0 Aug 16 09:28:15 hephaistos kernel: Event timer "i8254" frequency 1193182 Hz quality 100 Aug 16 09:28:15 hephaistos kernel: Timecounter "ACPI-fast" frequency 357954= 5 Hz quality 900 Aug 16 09:28:15 hephaistos kernel: acpi_timer0: <24-bit timer at 3.579545MH= z> port 0x1808-0x180b on acpi0 Aug 16 09:28:15 hephaistos kernel: Timecounters tick every 1.000 msec Aug 16 09:28:15 hephaistos kernel: Timecounter "TSC-low" frequency 11098724= 66 Hz quality 1000 --=20 You are receiving this mail because: You are on the CC list for the bug.=
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