On Sun, 2005-10-23 at 17:47 -0700, Paul E. McKenney wrote:
> On Sun, Oct 23, 2005 at 12:05:21PM -0700, Andrew Morton wrote:
> > Ingo Oeser <[email protected]> wrote:
> > >
> > > DEBUG_KERNEL should do nothing more than showing the debugging
> > > options.
> >
> > yup.
> >
> > > E.g. I don't expect to enable any additional code in an
> > > unrelated file, if I enable Magic-SysRQ on an embedded, unattended device
> > > to be able to analyze potential problems via serial console.
> > >
> > > @Andrew: Would you accept a patch to fix that?
> >
> > more yup.
>
> OK, the attached patch covers this and also fixes the redundant #include
> that Greg KH spotted.
>
> Thoughts?
Paul,
I enabled RCU_TORTURE_TEST in 2.6.14-rc5-mm1. My machine took 10+
minutes to boot and let me login. RCU kthreads are hogging the CPU.
Is this expected ?
Thanks,
Badari
top - 15:32:55 up 22 min, 1 user, load average: 10.96, 12.07, 9.18
Tasks: 94 total, 11 running, 83 sleeping, 0 stopped, 0 zombie
Cpu(s): 2.5% us, 97.5% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi,
0.0% si
Mem: 7145152k total, 350656k used, 6794496k free, 50876k buffers
Swap: 1048784k total, 0k used, 1048784k free, 160168k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
168 root 20 -5 0 0 0 R 50.2 0.0 10:44.01
rcu_torture_rea
171 root 20 -5 0 0 0 R 50.2 0.0 10:47.86
rcu_torture_rea
175 root 20 -5 0 0 0 R 50.2 0.0 10:49.83
rcu_torture_rea
169 root 20 -5 0 0 0 R 49.9 0.0 10:47.07
rcu_torture_rea
172 root 20 -5 0 0 0 R 49.9 0.0 10:50.04
rcu_torture_rea
173 root 20 -5 0 0 0 R 49.9 0.0 10:43.79
rcu_torture_rea
174 root 20 -5 0 0 0 R 49.9 0.0 10:39.16
rcu_torture_rea
170 root 20 -5 0 0 0 R 40.2 0.0 10:38.68
rcu_torture_rea
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