search for: current_clocksource

Dear fellow Xen''ers! I''m having a problem with my new Xen-enabled colocation server.. I hope ( at least ;) ) one of you guys know how to fix this problem.. For a certain amount of time ( 1-2 days ) the domU runs fine.. until the console starts spitting out messages like these: [80182.004456] clocksource/0: Time went backwards: delta=-6917292717540055641 shadow=80182004054805

...roblem. The point is that my vm has the clock unsynchronize, i tried many things and it seems that its work fine but im not sure. Now im using ntpd to synchronize the time but im not trust on it because it didnt work before. First, i tried the jiffies on /sys/devices/system/clocksource/clocksource0/current_clocksource with ntpd but it doesnt work and after to tried many thing i thought to back for the begining eho "xen"> /sys/devices/system/clocksource/clocksource0/current_clocksource Thats work for me but its very strange im not sure if its working correctly or not. For that, i would like to know...

Hi there, I am getting very low throughput (around 0.29Mbps) while running netperf benchmark for guest to guest communication on a single physical host. To analyse where the time is spent in hypervisor I wanna use profiling. Please help me choosing good profiler according to my requirments. Should it be better in my case, Xentrace, gprof, xenoprof  or Oprofile. Is it possible to use some vtune

Hi there, I am getting very low throughput (around 0.29Mbps) while running netperf benchmark for guest to guest communication on a single physical host. To analyse where the time is spent in hypervisor I wanna use profiling. Please help me choosing good profiler according to my requirments. Should it be better in my case, Xentrace, gprof, xenoprof  or Oprofile. Is it possible to use some vtune

....ini file?" There is no cpufreq directory under /sys/devices/system/cpu/cpu0; all I see is "cache" (dir), "crash_notes" (a file) and "topology" (dir). However under /sys/devices/system/clocksource/clocksource0, available_clocksource reads acpi_pm jiffies tsc pit, current_clocksource reads pit. (I put in the line clocksource=pit) in the grub boot up line. Divider=10 in the bootup line causes the boot up process to hang and a reset has to be performed; removing it and the CentOS boots properly. I'm currently using 2.6.18-53.1.13.el5, with boot up options are "noapic...

...ate) machine will BSOD when Ubuntu was booted with VMI turned on; only in the recent Workstation 6.0.3 patch that this bug has been fixed. For 3), Ubuntu default to vmi-timer if 1) and 2) are working properly; can be verified by /sys/devices/system/clocksource/clocksource0/available_clocksource and current_clocksource For 4), I didn't want to constantly lock the CPU of my laptop at highest speed at any time, as I don't need the CPU at full blast when I'm browsing website, or using MSOffice. So what I've done is by using distributed.net - this program uses idle CPU power to do calculations. This...

Hi, I''m getting errors while live migrating a pv guest. I''m running Xen 3.4.3 on CentOS 5.5, DRBD 8.3.8.1 and OCFS2 1.4.7-1. The two servers are identical. After live migrating the Debian lenny PV guest(2.6.26-2-686-bigmem), it crashes, It prints this on console [ 502.689357] BUG: recent printk recursion! [ 502.689357] BUG: recent printk recursion! [ 502.689357] BUG: recent

...:33:28 UTC (1323941608) ata_piix 0000:00:01.1: setting latency timer to 64 Clocksource tsc unstable (delta = -547592984 ns) [root at xxxx ~]# cat /sys/devices/system/clocksource/clocksource0/available_clocksource kvm-clock acpi_pm [root at xxxx ~]# cat /sys/devices/system/clocksource/clocksource0/current_clocksource kvm-clock cpuspeed service is not active on the guest. acpid service is active on the guest (so it can be shut down from the host with "virsh shutdown"). reading Redhat documentation, I did everything ok (that is : guest clocksource set to "kvm-clock" and physical host has a C...

...#39;t understand is that the host does not seem to help the client with it's timekeeping. On a fedora16 machine I can tell that kvm-clock is being used: cat /sys/devices/system/clocksource/clocksource0/available_clocksource kvm-clock tsc acpi_pm cat /sys/devices/system/clocksource/clocksource0/current_clocksource kvm-clock One the centos5 client I can think I see the same: dmesg|grep time.c time.c: Using 1.193182 MHz WALL KVM GTOD KVM timer. If I suspend a client, I see the time is correct just after resume. If I save and restore the time is left at the saved time: ssh valk5 date;virsh save valk5 /var/li...

...after resume? E.g. i don't see any log message that indicates to a guest that it had been paused and was just woken up. The problem that i am trying to solve is that when i reboot the host (pausing all guests), the guests' system clocks are a few minutes late after resume. The guests RTC (current_clocksource = kvm-clock) are correct though, so a "hwclock --hctosys" fixed the offset. I only need to find out how to call hwclock right after resume! Right now i call hwclock every few minutes, but i'd like to shorten the window of wrong time. OTOH i'd like to avoid installing ntpd into a...

Hi, I have upgraded my Dell C151 to the latest 5.6. I have always used ntp to sync this machine and then the rest of the machines in the network would sync from it. Since the update I cannot keep the right time on the machine. This is with / without ntp. I have attempted various scenario's with no luck. I am now trying the old kernel now as I type this out. If anyone else has any

(Moving from offlist discussion.) I''m interested in opinions... Assume there are four single vcpu domains A, B, C, D, running on a 2-CPU physical machine. We wish to test for time skew on domain A. Assuming B, C, and D are all running some workload that attempts to fully saturate the (single) cpu. 1) Should the affect on domain A be essentially the same regardless of what load

v3: - Various changes to dhclient/dhcpcd as discussed on the mailing list.

v2: - Make virbr0 configurable. - Fix the tests.

...6_64 x86_64 x86_64 GNU/Linux with @ grub, kernel /vmlinuz root=/dev/V0/ROOT rootfstype=ext4 rootflags=journal_checksum resume=/dev/V0/SWAP showopts splash=silent selinux=0 SELINUX_INIT=NO elevator=cfq vga=0x31a console=tty0 console=ttyS0,57600n8 cat /sys/devices/system/clocksource/clocksource0/current_clocksource tsc on 5 different mobos, all with AMD Phenom II X4 Deneb Cores (http://en.wikipedia.org/wiki/List_of_AMD_Phenom_microprocessors#.22Deneb.22_.28C2.2C_45_nm.2C_quad-core.29) e.g., grep "model name" /proc/cpuinfo model name : AMD Phenom(tm) II X4 920 Processor grep flags /pr...

...6_64 x86_64 x86_64 GNU/Linux with @ grub, kernel /vmlinuz root=/dev/V0/ROOT rootfstype=ext4 rootflags=journal_checksum resume=/dev/V0/SWAP showopts splash=silent selinux=0 SELINUX_INIT=NO elevator=cfq vga=0x31a console=tty0 console=ttyS0,57600n8 cat /sys/devices/system/clocksource/clocksource0/current_clocksource tsc on 5 different mobos, all with AMD Phenom II X4 Deneb Cores (http://en.wikipedia.org/wiki/List_of_AMD_Phenom_microprocessors#.22Deneb.22_.28C2.2C_45_nm.2C_quad-core.29) e.g., grep "model name" /proc/cpuinfo model name : AMD Phenom(tm) II X4 920 Processor grep flags /pr...

Hi, all -- I''m in the process of configuring a new machine for use as a Xen server, and am having some rather significant stability issues. The hardware/distro/kernel info is: opensuse 10.3 Linux offxen2 2.6.22.5-31-xen #1 SMP 2007/09/21 22:29:00 UTC x86_64 x86_64 x86_64 GNU/Linux 2 x Dual-Core AMD Opteron(tm) Processor 2212 HE 8 x 2GB PC2-5300 RAM Xen 3.1.0_15042-51 I currently have

Hi list! We currently have a PRI gateway composed by a box with two Digium quad-span PRI cards (a TE420 and a ). One of the cards is filled with TELCO1, while the other has first two slots filled with TELCO2, and 3rd slot with TELCO3. I am currently having (timer ?) issues on TELCO3 (span 7) D-Chan (202 as determined by dahdi_genconf ) is constantly failing causing on-going calls to terminate.

Hi, I have a KVM host running ubuntu 18.04 with libguestfs-tools version 1.36.13-1ubuntu3.3 installed from the Ubuntu's repo and when I try to use virt-cat for example on a VM it fails with: libguestfs: error: appliance closed the connection unexpectedly. > libguestfs: error: guestfs_launch failed. After doing "export LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1" and running the

...t; nfit 57344 0 > crc32_generic 16384 0 > crct10dif_pclmul 16384 0 > crc32_pclmul 16384 0 > + date > Thu Sep 3 10:30:22 UTC 2020 > + echo -n 'clocksource: ' > clocksource: + cat /sys/devices/system/clocksource/clocksource0/current_clocksource > kvm-clock > + echo -n 'uptime: ' > uptime: + cat /proc/uptime > 0.95 0.14 > + test '' = 1 > + cmd=guestfsd > ++ grep -Eo 'guestfs_channel=[^[:space:]]+' /proc/cmdline > + eval > + test x '!=' x > + test 1 = 1 > + cmd='guestfsd -...