linux-kernel - Re: RT-Kernel boot stalls because of change in fs/dcache.c

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Message-ID: <20181219113650.ak3wj3h3oapfy3tj@linutronix.de>
Date:   Wed, 19 Dec 2018 12:36:51 +0100
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Schrempf Frieder <frieder.schrempf@...tron.de>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-rt-users@...r.kernel.org" <linux-rt-users@...r.kernel.org>
Subject: Re: RT-Kernel boot stalls because of change in fs/dcache.c

On 2018-12-19 07:50:17 [+0000], Schrempf Frieder wrote:
> + linux-rt-users
> 
> On 17.12.18 11:42, Frieder Schrempf wrote:
> > Hi,
> > 
> > I have tried to boot a 4.14-Kernel with the RT-patches and 
> > PREEMPT_RT_FULL on an i.MX6UL board. Unfortunately the boot stalls at 
> > some point and never finishes.
> > 
> > I did some bisecting and found out, that reverting this change: [1], 
> > makes the board boot correctly.
> > 
> > Can anyone help to come up with a proper fix for this?

can you check if the hashtable is initialized twice?

> > Thanks,
> > Frieder
> > 
> > [1]: 
> > https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git/commit/?h=v4.14-rt&id=56684d21f7f8341f7a5ed1433714112f49294590 

Sebastian