Re: 2.6.35-rc2-git1 - include/linux/cgroup.h:534 invoked rcu_dereference_check() without protection!

From: Peter Zijlstra
Date: Wed Jun 09 2010 - 11:24:53 EST

On Wed, 2010-06-09 at 11:11 -0400, Miles Lane wrote:
> Sorry. I misunderstood this message when I first read it. I didn't
> realize this message include a new version of the patch.
> Anyhow, I just tried to apply the patch to 2.6.35-rc2-git3 and got this:
> # patch -p1 -l -F 20 --dry-run < ../5.patch
> patching file include/linux/cgroup.h
> patching file kernel/sched.c
> Hunk #1 succeeded at 306 with fuzz 1.
> Hunk #3 FAILED at 4462.
> Hunk #4 succeeded at 4487 with fuzz 3.
> 1 out of 4 hunks FAILED -- saving rejects to file kernel/sched.c.rej

Weird.. it seems to apply without trouble to Linus' git tree.

root@twins:/usr/src/linux-2.6# git checkout -f origin/master
HEAD is now at 84f7586... Merge branch 'for-linus' of git://
root@twins:/usr/src/linux-2.6# quilt push
Applying patch patches/sched-rcu-validation.patch
patching file include/linux/cgroup.h
patching file kernel/sched.c

Now at patch patches/sched-rcu-validation.patch
root@twins:/usr/src/linux-2.6# git describe

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