Friday, 28 March 2014 11:43

SUSE releases module to patch running kernel

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SUSE Linux has released the code for kGraft, a module which can be used to patch a running Linux kernel. The company had promised to make the release this month.

The head of the company's kernel development, Vojtech Pavlik, said in a media release: "Originally a research project from SUSE Labs, kGraft has quickly shown its promise as a live patching Linux tool for enterprise users."

There are two existing methods of patching a running kernel - Ksplice and OpenVZ Checkpointing. The open source version of the first has not been updated.

Ksplice, which was developed by Ksplice Inc under an open source licence until July 2011 when it was bought by Oracle, is used by the company as an incentive to get companies to use Oracle Linux. Prior to being acquired, it was available for the Red Hat, CentOS, Debian, Ubuntu and Fedora Linux distributions.

"Providing quick and reliable response to unscheduled patching needs without requiring the shutting down or rebooting of any number of servers will increase the stability, cost efficiency and security of enterprise customers' environments," Pavlik said. "This technology will enhance uptime in mission-critical environments."

The release was announced at the Linux Foundation's Collaboration Summit in Napa, California, where Pavlik also gave a presentation on the new module.

The code will be sent upstream for inclusion in the main Linux kernel. 


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Sam Varghese

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Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

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