-rt 发布历程

阅读linux-rt-user邮件列表的一些记录

-rt对应kernel的版本
...
---- 2.6.19-？
---- 2.6.21-rt2
---- 2.6.22.1-rt1
---- 2.6.23-rc1-rt0
---- 2.6.23-rc4-rt1 new project URL 
---- 2.6.24-rc2-rt1 据说-rt从2.6.23移植到2.6.24非常难，花费了rostedt不少心血啊
---- 2.6.25.4-rt1    
---- 2.6.26.3-rt2    
   邮件列表中发布版本在26之后就是29了，跨过了好几个内核版本
---- 2.6.29-rc4-rt1  tglx声明以2.6.26.8-rt15为基础，而不是git tree上的2.6.28，原因是选择最稳定的补丁版本，git-rt tree
上有很多重写的新代码。以后的计划是将该-rt版本完全合并到git tree，并且整合到-tip git tree，便于使用-tip 的资源。
还要将其整到mainline kernel tree！

---- 2.6.31-rc4-rt1
---- 2.6.33-rc8-rt1
---- 3.0-rc7-rt0
---- 3.2-rc1-rt1
...

a




rostedt声称开始将工作迁移到-rt git tree，等到稳定后，以后版本都在-rt git 上发布
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-rt.git

Creating the RT git tree

rostedt详细说明了-rt git tree如何创建，分支如何管理的
a
[Announce] 2.6.29-rc4-rt1


[ANNOUNCE] 3.0-rc7-rt0

After lenghty and fruitful discussions with Peter Zijlstra - thanks a
lot Peter! - we finally agreed on trying a totally different approach
to tackle these issues: disabling migration over spinlock and get_cpu
sections. This had been discussed before, but nobody ever considered
to sit down and make it work.

This keeps the semantics which are expected by the per cpu users,
while keeping the regions preemptible. As a side effect, it allows us
to run softirq handlers directly from irq threads on local_bh_enable
which was a long desired feature to lower the performance impact of
RT.
...

[ANNOUNCE] 3.6.1-rt1 

[ANNOUNCE] 3.8.4-rt1

linux-stable-rt 

 未完待续