From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Sat, 23 May 2015 00:26:27 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Message-ID: <20150522222627.GC1987@hermes.click-hack.org>
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 <20150522210503.GA1987@hermes.click-hack.org>
 <9184F070-BBB8-44F8-AD64-79536BCDFA52@gatech.edu>
 <20150522215216.GB1987@hermes.click-hack.org>
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Subject: Re: [Xenomai] 3.14.17 patch initial ram disk hangup
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To: "Yogi A. Patel" <yapatel@gatech.edu>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>

On Fri, May 22, 2015 at 06:00:56PM -0400, Yogi A. Patel wrote:
> > On May 22, 2015, at 17:52, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> wrote:
> > 
> >> On Fri, May 22, 2015 at 05:37:16PM -0400, Yogi A. Patel wrote:
> >> 
> >>> On May 22, 2015, at 17:05, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> wrote:
> >>> 
> >>> On Fri, May 22, 2015 at 04:47:59PM -0400, Yogi A. Patel wrote:
> >>>> Hi -
> >>>> 
> >>>> I have a Dell OptiPlex 9020 running 3.14.17. I am trying to get this system to run 3.14.17 with xenomai (using the 3.14.17 patch in the xenomai 2.6.4 source).
> >>>> 
> >>>> The computer hangs when I select the kernel at “Loading initial ram disk”. I tried booting into recovery mode and go the following output:
> >>>> 
> >>>> Kernel panic - not syncing: timer doesn’t work through Interrupt-remapped IO-APIC.
> >>>> CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.17-xenomai-2.6.4.
> >>>> 
> >>>> I’m having a hard time finding the source of the error. I’ve attached my config file. Any suggestions appreciated!
> >>> 
> >>> Does the exact same kernel configuration, but without CONFIG_IPIPE
> >>> and CONFIG_XENOMAI work ?
> >>> 
> >>> -- 
> >>>                        Gilles.
> >> 
> >> Sorry, I may have misunderstood but if you’re asking if 3.14.17 works out of the box (withough being patched), then yes it does work.
> > 
> > The question is: with the exact same configuration?
> > 
> > -- 
> >                        Gilles.
> 
> I can't get the kernel to compile if I turn those two options off (but leave everything else the same).
> 
> I get the following error: 
> 
> kernel/fork.c: In function ‘dup_task_struct’:
> kernel/fork.c:317:29: error: ‘struct thread_info’ has no member named ‘ipipe_data’
> __ipipe_init_threadinfo(&ti->pipe_data);
> make[2] *** [kernel/fork.o] Error 1
> make[1] *** [kernel] Error 2

You were talking about the unpatched kernel. Does the unpatched
kernel work with the exact same configuration (only without
CONFIG_IPIPE and CONFIG_XENOMAI).

-- 
					    Gilles.