linux-kernel - Re: system gets stuck in a lock during boot

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Message-Id: <1254791938.13160.211.camel@gandalf.stny.rr.com>
Date:	Mon, 05 Oct 2009 21:18:58 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	"Justin P. Mattock" <justinmattock@...il.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Jason Baron <jbaron@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Li Zefan <lizf@...fujitsu.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: system gets stuck in a lock during boot

On Mon, 2009-10-05 at 18:00 -0700, Justin P. Mattock wrote:
> Justin Mattock wrote:

> o.k. I put back on that system, and
> hit the error. I add your patch to 2.6.31-rc6,
> and the latest git(a few days old).
> I still am hitting this, but with your patch
> I'm able to see the beginning of this panic:
> (Ill write it manually)
> 
> [   2.523966] kernel panic - not syncing: No init found. try passing 
> init= option
> to the kernel
> [   2.524394] Pid: 1, comm: swapper Not tainted 2.6.31-rc6 #6
> [   2.524633] Call Trace:
> [   2.524875] [<ffffffff813a5b72>] panic+0x75/0x120
> [   2.525119] [<ffffffff8100910f>] init_post+0xef/0xf5

Strange. This panic is just telling you it could not find an "init" to
execute.

-- Steve

> [   2.525357] [<ffffffff815f6cf0>] kernel_init+0x198/0x1a3
> [   2.525600] [<ffffffff8102410a>] child_rip+0xa/0x20
> [   2.525842] [<ffffffff815f6b58>] ? kernel_init+0x0/0x1a3
> [   2.526084] [>ffffffff810224100>] ? child_rip+0x0/0x20
> 
> Seems I only hit this with using gcc 4.5.0 and compiling
> sysvinit with SELinux support to load the policy at boot.
> (here's the patch I used
> http://readlist.com/lists/tycho.nsa.gov/selinux/3/15451.html).
> 
> Sound's like gcc is doing something(correct me if I'm
> wrong) because the other systems I have are using the same
> packages except for and older version of gcc.
> maybe  I should update sysvinit with a better patch to load the policy.
> 
> Justin P. Mattock

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