Summary: append to VM’s kernel, for i386,i686 => ‘divider=10 clocksource=acpi_pm’, for x86_64 => ‘divider=10 notsc’
This is needed to fix the drifting clock issue on VMs that are not using pv_clock driver
Posted in 3.0, asterisk, clock, clocksource, drift, kernel, kvm, Linux, RHEVM, sysadmin, virtualization, vm | Comments Off | permalink
Summary: append to VM’s kernel, for i386,i686 => ‘divider=10 clocksource=acpi_pm’, for x86_64 => ‘divider=10 notsc’
This is needed to fix the drifting clock issue on VMs that are not using pv_clock driver
Posted in 3.0, asterisk, clock, clocksource, drift, kernel, kvm, Linux, RHEVM, sysadmin, virtualization, vm | Comments Off | permalink
Notes on how to get sane traffic flows for a linux box that has 2 network cards connected to the same network. NOTE: this is a required setup if you are using multiple network cards feature on AWS VPC
Posted in amazon, aws, cloud, default, gateway, kernel, Linux, multiple, policy, routing, sysadmin | Comments Off | permalink
Notes on how to get sane traffic flows for a linux box that has 2 network cards connected to the same network. NOTE: this is a required setup if you are using multiple network cards feature on AWS VPC
Posted in amazon, aws, cloud, default, gateway, kernel, Linux, multiple, policy, routing, sysadmin | Comments Off | permalink
Notes on how to get sane traffic flows for a linux box that has 2 network cards connected to the same network. NOTE: this is a required setup if you are using multiple network cards feature on AWS VPC
Posted in amazon, aws, cloud, default, gateway, kernel, Linux, multiple, policy, routing, sysadmin | Comments Off | permalink
Kernel.org machines were hacked into, possibly via stolen credentials. Investigation is underway.
Thanks to GIT crypt-signing each commit, there is no danger to linux kernel code.
Posted in hacking, kernel, kernel.org, Linux, Security | Comments Off | permalink
Posted in for:@twitter, for:collidr, hacking, has:for, kernel, kernel.org, Linux, Security | Comments Off | permalink
Quote from the article: “Therefore,
the most we can read from the overall balance of marks is
that open source development approaches do not produce
software of markedly higher quality than proprietary software
development.”
A subjective code quality …
Posted in comparison, freebsd, kernel, Linux, programming, quality, research, software-engineering, windows | Comments Off | permalink
explanation on why `-m state –state ‘ does not work for IPv6 in older kernels
Posted in firewall, iptables, kernel, Linux, modules, network | Comments Off | permalink
Also see http://shader.kaist.edu/packetshader/io_engine/index.html and http://www.ndsl.kaist.edu/~kyoungsoo/papers/2010-lanman-100Gbps.pdf
Using latest x86 hardware and GPU to build a 100GB pc router / possible theoretically, but as of now, is not co…
Posted in 100GB, gpgpu, gpu, kernel, Linux, network, networking, performance, programming, router, routing, software | Comments Off | permalink
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Konstantin Antselovich (c) 2004-2011
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