Re: [BUG] [ tip/sched/core ] System unresponsive after booting

[Daniel Lezcano]

On 01/15/2014 01:24 PM, Ingo Molnar wrote:
> * Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> > On Wed, Jan 15, 2014 at 09:27:34AM +0100, Daniel Lezcano wrote:
> > > Hi all,
> > >
> > > I use the tip/sched/core branch.
> > >
> > > After git pulling yesterday, my host is unresponsive after booting the OS.
> > >
> > >   * It boots normally
> > >   * It sends info to the console
> > >   * The graphics does not work
> > >   * The terminals show the prompt, I can enter the username but after
> > > pressing enter, it does not give the password prompt
> > >   * sysrq works more or less, I can't get the process stack but it receives
> > > the command
> > >
> > > It is like no new process can be created.
> > >
> > > I have a dual Xeon processor E5325 (2 x 4 cores).
> > >
> > > After git bisecting, the following patch seems to introduce the bug.
> > >
> > > commit d50dde5a10f305253cbc3855307f608f8a3c5f73
> >
> > OK, so my headless WSM-EP boots just fine. Obviously it cannot confirm
> > if graphics works, but I can ssh in and work on it without bother.
> >
> > I can even log in on the serial console without problems.
> >
> > I tried both tip/master and tip/sched/core.
>
> I too booted various sytems and have yet to notice similar oddity.

Ok, I was able to boot and use the system with init=/bin/bash and a 
busybox but the ubuntu distro ends up to block after booting. So I guess 
there a service triggering something in the kernel leading to this issue.


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