Messages in this thread |  | | | Date | Fri, 6 Jan 2012 14:06:25 -0800 | | From | Andrew Morton <> | | Subject | Re: [resubmit] Re: [patch-final] Re: patch] cpusets, cgroups: disallow attaching kthreadd |
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On Wed, 07 Dec 2011 05:36:57 +0100 Mike Galbraith <efault@gmx.de> wrote:
> cpusets, cgroups: disallow attaching kthreadd > > Allowing kthreadd to be moved to a non-root group makes no sense, it being > a global resource, and needlessly leads unsuspecting users toward trouble. > > 1. An RT workqueue worker thread spawned in a task group with no rt_runtime > allocated is not schedulable. Simple user error, but harmful to the box. > > 2. A worker thread which acquires PF_THREAD_BOUND can never leave a cpuset, > rendering the cpuset immortal. > > Save the user some unexpected trouble, just say no.
Someone's been screwing around in linux-next during the merge window. afacit some patch which was previously there has magically disappeared. That killed your patch - the original version of the kernel/sched/core.c chagne applies to the new linux-next but the kernel/cpuset.c part is all wrecked.
There's been a lot of screwing around this time. There were a large number of rejects merging current linux-next onto current mainline this morning due to conflicting changes in tools/perf/.
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