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Kernel competition in the enterprise space

Kernel competition in the enterprise space

Posted Mar 16, 2012 4:34 UTC (Fri) by dlang (subscriber, #313)
In reply to: Kernel competition in the enterprise space by dag-
Parent article: Kernel competition in the enterprise space

as someone who has been deploying custom kernels in production (in what decidedly qualifies as an "enterprise" datacenter) for 15 years, I can say that as long as I avoided some of the most convoluted RedHat systems (back in the kernel 2.1 and 2.3 days when the 'stable' kernel was so out of date that nobody could use it). There are really very few cases where a new kernel requires a userspace upgrade.

There are some cases where you need some new userspace tools to take advantage of some of the new kernel features, but Linus is pretty good at preventing changes that require userspace updates (and at the same time RedHat has gotten better at avoiding userspace incompatible kernel modifications)

I expect there to be very few problems with these updates


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Kernel competition in the enterprise space

Posted Mar 21, 2012 20:09 UTC (Wed) by dag- (subscriber, #30207) [Link]

Well, for my RHEL6.2 system kernel 3.2 is already one kernel too far. The Intel chipset on my Thinkpad X201 starts flickering once Xorg/Gnome is started. Adding intel_iommu=igfx_off surpresses some kernel messages, but does not fix the screen flickering. Kernel 3.3 makes no difference.

And we're not even 2 years into RHEL6, 8+ years to go :-)


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