Tuesday, March 11th, 2014

Time	Event
12:19a	A discussion between database and kernel developers On March 27, there will be a meeting between database and kernel developers at the Linux Foundation's Collaboration summit; interested developers are invited to attend. "If there are developers attending Collaboration Summit that work in the database or kernel communities, it would be great if you could come along. Previous discussions were on the PostgreSQL list and that should be expanded in case we accidentally build postgres-only features. The intent is to identify the problems encountered by databases and where relevant, test cases that can be used to demonstrate them if they exist. While the kernel community may be aware of some of the problems, they are not always widely known or understood." (Comment on this)
12:36p	"Is parallel programming hard?", first edition Paul McKenney has announced that the first edition of his 500-page book Is Parallel Programming Hard, And, If So, What Can You Do About It? is available in electronic form; a printed version will follow soon. The entire book is available under the CC-BY-SA 3.0 license. (Comment on this)
3:58p	Tuesday's security updates CentOS has updated sudo (C5: privilege escalation). Fedora has updated mediawiki (F20; F19: ), openldap (F19: denial of service), rubygem-actionpack (F20; F19: multiple vulnerabilities), and rubygem-activerecord (F20: multiple vulnerabilities). Mandriva has updated wireshark (multiple vulnerabilities). Oracle has updated sudo (OL5: privilege escalation). Red Hat has updated sudo (RHEL5: privilege escalation). Scientific Linux has updated sudo (SL5: privilege escalation). Slackware has updated udisks (privilege escalation). (Comment on this)
10:47p	[$] MCS locks and qspinlocks Impressive amounts of effort have gone into optimizing the kernel's low-level locking mechanisms over the years, but that does not mean that there is no room for improving their performance further. Some work that will be in the 3.14 3.15 kernel, with more likely to come later, has the potential to speed up kernel locking considerably, especially in situations where there are significant amounts of contention. Click below (subscribers only) for the full article from this week's Kernel Page. (Comment on this)

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