search for: pmtimer

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/chap-Virtualization-KVM_guest_timing_management.html Want to get some more people's opinion on this: the above doc says to use the boot parameter "/use pmtimer" to use the RTC "instead of the TSC for all time sources which resolves guest timing issues". One: does this have any bearing on whether the host has the constant_tsc flag (i.e. are all the sections that follow "Configuring hosts without a constant Time Stamp Counter" subo...

In order to support the eventual MFC of a limited and experimental acpi(4) driver from -CURRENT, I have merged a few changes from -CURRENT to -STABLE including: - Power management interface (subr_power.c) - pmtimer(4) driver. Unlike -CURRENT this driver does not require 'device pmtimer' in the kernel config so that existing kernel configs do not have to be changed. - Updated suspend/resume code in the i386 interrupt and clock code. - APM driver updated for the above changes (includes syncing with...

The value of ACPI PM-Timer may be broken on save unless the timer mode is delay_for_missed_ticks. With other timer modes, vcpu->arch.hvm_vcpu.guest_time is always zero and the adjustment from its value is wrong. This patch fixes the saved value of ACPI PM-Timer: - don''t adjust the PM-Timer if vcpu->arch.hvm_vcpu.guest_time is zero. - consolidate calculations of PM-Timer to one

...t-locks and hard-locks on Xen back in September 2010, associated with HPET broadcast. I''m seeing similar issues. If I disable C-states as Jimmy suggests above, the problem goes away. If I set the clocksource to pit, the problem goes away. It may go away also if I set the clocksource to pmtimer/acpi, or if I remove HPET from the list of available platform timers. Did this issue ever get resolved? Is there a better solution that using pit as a clocksource? I''d really prefer to not disable C-states, as the hardware I''m using gets significant performance and performance...

...ff000 (d6) Detected Xen v4.6.6-9.el7 (d6) xen: copy BIOS tables... (d6) Copying SMBIOS entry point from 0x00010020 to 0x000f6600 (d6) Copying MPTABLE from 0xfc001160/fc001170 to 0x000f6500 (d6) Copying PIR from 0x00010040 to 0x000f6480 (d6) Copying ACPI RSDP from 0x000100c0 to 0x000f6450 (d6) Using pmtimer, ioport 0xb008 (d6) Scan for VGA option rom (d6) Running option rom at c000:0003 (d6) pmm call arg1=0 (d6) Turning on vga text mode console (d6) SeaBIOS (version ?-20150729_130325-) (d6) Machine UUID 8ebc5a48-2f57-4408-9fcb-344604913e27 (d6) UHCI init on dev 00:01.2 (io=c200) (d6) Found 0 lpt ports...

...-9.el7 > (d6) xen: copy BIOS tables... > (d6) Copying SMBIOS entry point from 0x00010020 to 0x000f6600 > (d6) Copying MPTABLE from 0xfc001160/fc001170 to 0x000f6500 > (d6) Copying PIR from 0x00010040 to 0x000f6480 > (d6) Copying ACPI RSDP from 0x000100c0 to 0x000f6450 > (d6) Using pmtimer, ioport 0xb008 > (d6) Scan for VGA option rom > (d6) Running option rom at c000:0003 > (d6) pmm call arg1=0 > (d6) Turning on vga text mode console > (d6) SeaBIOS (version ?-20150729_130325-) > (d6) Machine UUID 8ebc5a48-2f57-4408-9fcb-344604913e27 > (d6) UHCI init on dev 00:01...

...RIDIAN_VCPU: apic_assist 0x%llx\n", + (unsigned long long) p.apic_assist); +} + int main(int argc, char **argv) { int entry, domid; @@ -439,7 +447,8 @@ int main(int argc, char **argv) case HVM_SAVE_CODE(HPET): dump_hpet(); break; case HVM_SAVE_CODE(PMTIMER): dump_pmtimer(); break; case HVM_SAVE_CODE(MTRR): dump_mtrr(); break; - case HVM_SAVE_CODE(VIRIDIAN): dump_viridian(); break; + case HVM_SAVE_CODE(VIRIDIAN_DOMAIN): dump_viridian_domain(); break; + case HVM_SAVE_CODE(VIRIDIAN_VCPU): dump_viridian_vcpu(); break;...

...# support for X server on a vt console #options FAT_CURSOR # start with block cursor #device agp # support several AGP chipsets # Power management support (see NOTES for more options) #device apm # Add suspend/resume support for the i8254. device pmtimer # PCCARD (PCMCIA) support # PCMCIA and cardbus bridge support device cbb # cardbus (yenta) bridge device pccard # PC Card (16-bit) bus device cardbus # CardBus (32-bit) bus # Serial (COM) ports device sio # 8250, 16[45]5...

...page_cgroup [ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups [ 0.000000] installing Xen timer for CPU 0 [ 0.000000] tsc: Fast TSC calibration failed [ 0.000000] tsc: Unable to calibrate against PIT [ 0.000000] tsc: No reference (HPET/PMTIMER) available [ 0.000000] tsc: Detected 2394.058 MHz processor [ 0.002000] Calibrating delay loop (skipped), value calculated using timer frequency.. 4788.11 BogoMIPS (lpj=2394058) [ 0.002000] pid_max: default: 32768 minimum: 301 [ 0.002000] Security Framework initialized [ 0.002000] SE...

...SC_CUT_SPACES2TABS #options SC_CUT_SEPCHARS=\"x09\" #options SC_TWOBUTTON_MOUSE #options SC_NO_CUTPASTE #options SC_NO_FONT_LOADING #options SC_NO_HISTORY #options SC_NO_SYSMOUSE #options SC_NO_SUSPEND_VTYSWITCH device npx #device pmtimer #device sio # 8250, 16[45]50 based serial ports # Parallel port #device ppc #device ppbus # Parallel port bus (required) #device lpt # Printer #device plip # TCP/IP over parallel #device ppi # Parallel port interface device #device vpo # Requires scbus and da device miibus # MII...

...stalled-CPUs detection is disabled. [??? 0.000000] NR_IRQS:2304 nr_irqs:256 [??? 0.000000] Console: colour dummy device 80x25 [??? 0.000000] console [ttyS0] enabled [??? 0.000000] Fast TSC calibration failed [??? 0.000000] TSC: Unable to calibrate against PIT [??? 0.000000] TSC: No reference (HPET/PMTIMER) available [??? 0.000000] Marking TSC unstable due to could not calculate TSC khz [??? 0.028000] Calibrating delay loop... 194.04 BogoMIPS (lpj=388096) [??? 0.104000] pid_max: default: 32768 minimum: 301 [??? 0.108000] Security Framework initialized [??? 0.112000] AppArmor: AppArmor initialized [??...

...ptive. device isa device pci device atkbdc # AT keyboard controller device atkbd # AT keyboard device psm # PS/2 mouse device vga # VGA video card driver device splash # Splash screen and screen saver support device sc device agp # support several AGP chipsets device npx device pmtimer device sio # 8250, 16[45]50 based serial ports device ppc device ppbus # Parallel port bus (required) device lpt # Printer device miibus # MII bus support device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards device loop # Network loopback device mem # Memory and kernel memory dev...

...detection of stalled CPUs is disabled.[ 0.000000] NR_IRQS:16640 nr_irqs:256 16[ 0.000000] Console: colour dummy device 80x25[ 0.000000] console [ttyS0] enabled[ 0.000000] Fast TSC calibration failed[ 0.000000] TSC: Unable to calibrate against PIT[ 0.000000] TSC: No reference (HPET/PMTIMER) available[ 0.000000] Marking TSC unstable due to could not calculate TSC khz[ 0.080000] Calibrating delay loop... 52.32 BogoMIPS (lpj=261632)[ 0.220000] pid_max: default: 32768 minimum: 301[ 0.220000] Security Framework initialized[ 0.240000] AppArmor: AppArmor initialized[ 0.240...

...ce> on ppbus0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ppi0: <Parallel I/O> on ppbus0 sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 sio0: type 16550A pmtimer0 on isa0 orm0: <ISA Option ROM> at iomem 0xc0000-0xc8fff on isa0 atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual...

...o card driver device splash # Splash screen and screen saver support # syscons is the default console driver, resembling an SCO console device sc device agp # support several AGP chipsets # Add suspend/resume support for the i8254. device pmtimer # Serial (COM) ports device sio # 8250, 16[45]50 based serial ports # Parallel port device ppc device ppbus # Parallel port bus (required) device lpt # Printer device plip # TCP/IP over parallel device...

...ce splash # Splash screen and screen saver support # syscons is the default console driver, resembling an SCO console device sc #device agp # support several AGP chipsets # Power management support (see NOTES for more options) #device apm # Add suspend/resume support for the i8254. device pmtimer # PCCARD (PCMCIA) support # PCMCIA and cardbus bridge support device cbb # cardbus (yenta) bridge device pccard # PC Card (16-bit) bus device cardbus # CardBus (32-bit) bus # Serial (COM) ports device sio # 8250, 16[45]50 based serial ports device uart # Generic UART driver # Parallel...

...[ 0.000000] NR_IRQS:8448 nr_irqs:488 16 > > [ 0.000000] Console: colour VGA+ 80x25 > > [ 0.000000] console [tty0] enabled > > [ 0.000000] tsc: Fast TSC calibration failed > > [ 0.000000] tsc: Unable to calibrate against PIT > > [ 0.000000] tsc: using PMTIMER reference calibration > > [ 0.000000] tsc: Detected 2297.102 MHz processor > > [ 0.060019] Calibrating delay loop (skipped), value calculated using timer frequency.. 4594.20 BogoMIPS (lpj=22971020) > > [ 0.060712] pid_max: default: 32768 minimum: 301 > > [ 0.0610...

...eaf=16, nr_cpu_ids=8 > [ 0.000000] NR_IRQS:8448 nr_irqs:488 16 > [ 0.000000] Console: colour VGA+ 80x25 > [ 0.000000] console [tty0] enabled > [ 0.000000] tsc: Fast TSC calibration failed > [ 0.000000] tsc: Unable to calibrate against PIT > [ 0.000000] tsc: using PMTIMER reference calibration > [ 0.000000] tsc: Detected 2297.102 MHz processor > [ 0.060019] Calibrating delay loop (skipped), value calculated using timer frequency.. 4594.20 BogoMIPS (lpj=22971020) > [ 0.060712] pid_max: default: 32768 minimum: 301 > [ 0.061048] ACPI: Core revis...

...eaf=16, nr_cpu_ids=8 > [ 0.000000] NR_IRQS:8448 nr_irqs:488 16 > [ 0.000000] Console: colour VGA+ 80x25 > [ 0.000000] console [tty0] enabled > [ 0.000000] tsc: Fast TSC calibration failed > [ 0.000000] tsc: Unable to calibrate against PIT > [ 0.000000] tsc: using PMTIMER reference calibration > [ 0.000000] tsc: Detected 2297.102 MHz processor > [ 0.060019] Calibrating delay loop (skipped), value calculated using timer frequency.. 4594.20 BogoMIPS (lpj=22971020) > [ 0.060712] pid_max: default: 32768 minimum: 301 > [ 0.061048] ACPI: Core revis...

...f000 (d6) Detected Xen v4.4-unstable (d6) xen: copy BIOS tables... (d6) Copying SMBIOS entry point from 0x00010010 to 0x000f1920 (d6) Copying MPTABLE from 0xfc001170/fc001180 to 0x000f1820 (d6) Copying PIR from 0x00010030 to 0x000f17a0 (d6) Copying ACPI RSDP from 0x000100b0 to 0x000f1770 (d6) Using pmtimer, ioport 0xb008, freq 3579 kHz (d6) Scan for VGA option rom (d6) WARNING! Found unaligned PCI rom (vd=1b36:0100) (d6) Running option rom at c000:0003 (XEN) stdvga.c:147:d6 entering stdvga and caching modes (d6) Turning on vga text mode console (d6) SeaBIOS (version debian/1.7.3-1-1-ga76c6f1-dirty-20...