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Date: Mon, 6 Feb 2017 18:41:56 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Gabriel C <nix.or.die@gmail.com>
Cc: linux-kernel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        torvalds@linux-foundation.org, stable@vger.kernel.org, lwn@lwn.net,
        Jiri Slaby <jslaby@suse.cz>, Thomas Gleixner <tglx@linutronix.de>,
        Ruslan Ruslichenko <rruslich@cisco.com>
Subject: Re: Linux 4.9.6 ( Restore IO-APIC irq_chip retrigger callback ,
 breaks my box )
Message-ID: <20170206174156.GB10441@kroah.com>
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On Mon, Feb 06, 2017 at 06:30:15PM +0100, Gabriel C wrote:
> 
> On 26.01.2017 08:48, Greg KH wrote:
> 
> Hi Greg,
> 
> > I'm announcing the release of the 4.9.6 kernel.
> 
> 
> Somewhat late , however I didn't tested 4.9.6 but jumped from 4.9.5 to 4.9.7
> and found out by box won't boot anymore.
> 
> It hangs early and freeze with a lot RCU warnings.
> Since I cannot setup a netconsole right now I cannot post the errors , really sorry.
> 
> ( but I could make a picture if needed )
> 
> 
> I bisected it down to :
> 
> > Ruslan Ruslichenko (1):
> >       x86/ioapic: Restore IO-APIC irq_chip retrigger callback
> 
> Reverting this one fixes the problem for me..
> 
> Also this problem exists in Linus tree , I tested on:
> 4.10.0-rc6-00167-ga0a28644c1cf

Ok, at least we are consistent :)

> The box is a PRIMERGY TX200 S5 , 2 socket , 2 x E5520 CPU(s) installed.
> 
> Config:
> https://raw.githubusercontent.com/frugalware/frugalware-current/master/source/base/kernel/config.x86_64

Ruslan, any thoughts about what to do here?

thanks,

greg k-h