Re: Kernel Preemption and Entropy Pool

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On Mon, 29 May 2006, Soorej P wrote:

From its older days i thought Linux Kernel is preemptive.. But now i heard
after the release of 2.6 the Linux kernel became preemptive.. so 2.4 was non
preemptive? Will you please tell me more about Linux kernel preemption?

In 2.4 user processes were preemptable, but not the kernel itself, i.e. once kernel code takes control of the CPU it could not be preempted. In 2.6 the kernel too is preemptable.

/Ricard
--
Ricard Wolf Wanderlöf                           ricardw(at)axis.com
Axis Communications AB, Lund, Sweden            www.axis.com
Phone +46 46 272 2016                           Fax +46 46 13 61 30

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