[Bug 207677] atrtc Warning: Couldn't map I/O on Skylake Supermicro X11SSH-LN4F (10.3-BETA3)

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Thu Mar 3 12:39:00 UTC 2016


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207677

            Bug ID: 207677
           Summary: atrtc Warning: Couldn't map I/O on Skylake Supermicro
                    X11SSH-LN4F (10.3-BETA3)
           Product: Base System
           Version: 10.3-BETA2
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: will at sundivenetworks.com
                CC: freebsd-amd64 at FreeBSD.org
                CC: freebsd-amd64 at FreeBSD.org

Created attachment 167682
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=167682&action=edit
dmesg.boot from X11SSH-LN4F.

I'm testing a new Skylake server based on the Supermicro X11SSH-LN4F
motherboard.

When booting I see the following atrtc warning:

FreeBSD 10.3-BETA3 #0 r296074: Fri Feb 26 01:13:37 UTC 2016
    root at releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
CPU: Intel(R) Xeon(R) CPU E3-1260L v5 @ 2.90GHz (2904.14-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x506e3  Family=0x6  Model=0x5e  Stepping=3
...
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 24000000 Hz quality 950
Event timer "HPET" frequency 24000000 Hz quality 550
atrtc0: <AT realtime clock> port 0x70-0x77 irq 8 on acpi0
atrtc0: Warning: Couldn't map I/O.
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
...

I have attached the full boot dmesg for reference.

Kernel timer info:
# sysctl kern.eventtimer
kern.eventtimer.periodic: 0
kern.eventtimer.timer: LAPIC
kern.eventtimer.idletick: 0
kern.eventtimer.singlemul: 2
kern.eventtimer.choice: LAPIC(600) HPET(550) i8254(100) RTC(0)
kern.eventtimer.et.i8254.quality: 100
kern.eventtimer.et.i8254.frequency: 1193182
kern.eventtimer.et.i8254.flags: 1
kern.eventtimer.et.RTC.quality: 0
kern.eventtimer.et.RTC.frequency: 32768
kern.eventtimer.et.RTC.flags: 17
kern.eventtimer.et.HPET.quality: 550
kern.eventtimer.et.HPET.frequency: 24000000
kern.eventtimer.et.HPET.flags: 7
kern.eventtimer.et.LAPIC.quality: 600
kern.eventtimer.et.LAPIC.frequency: 12000594
kern.eventtimer.et.LAPIC.flags: 7

PS. I have assigned this to 10.3-BETA2 because 10.3-BETA3 was not in the
version list.

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