linux-kernel - Re: next-20120604 WARNING: at block/blk-cgroup.c:867

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Date:	Tue, 05 Jun 2012 23:37:27 -0400
From:	valdis.kletnieks@...edu
To:	Jens Axboe <axboe@...nel.dk>, Tejun Heo <tj@...nel.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: next-20120604 WARNING: at block/blk-cgroup.c:867

On Tue, 05 Jun 2012 23:23:40 -0400, Valdis Kletnieks said:

(hit SEND a tad too soon)

> % zgrep CGR /proc/config.gz
> CONFIG_CGROUPS=y
> CONFIG_CGROUP_DEBUG=y
> CONFIG_CGROUP_FREEZER=y
> CONFIG_CGROUP_DEVICE=y
> CONFIG_CGROUP_CPUACCT=y
> CONFIG_CGROUP_MEM_RES_CTLR=y
> CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
> CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED=y
> # CONFIG_CGROUP_MEM_RES_CTLR_KMEM is not set
> CONFIG_CGROUP_PERF=y
> CONFIG_CGROUP_SCHED=y
> CONFIG_BLK_CGROUP=y
> # CONFIG_DEBUG_BLK_CGROUP is not set
> # CONFIG_NET_CLS_CGROUP is not set
> CONFIG_NETPRIO_CGROUP=m

Also, I have this:

zgrep CFQ /proc/config.gz
CONFIG_IOSCHED_CFQ=y
# CONFIG_CFQ_GROUP_IOSCHED is not set
CONFIG_DEFAULT_CFQ=y

Am guessing that lacking CFQ_GROUP_IOSCHED is what causes the indigestion.


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