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Subject: Re: Linux 4.9.6 ( Restore IO-APIC irq_chip retrigger callback ,
 breaks my box )
To: Greg KH <gregkh@linuxfoundation.org>, linux-kernel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        torvalds@linux-foundation.org, stable@vger.kernel.org
References: <20170126074846.GA19870@kroah.com>
Cc: lwn@lwn.net, Jiri Slaby <jslaby@suse.cz>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ruslan Ruslichenko <rruslich@cisco.com>
From: Gabriel C <nix.or.die@gmail.com>
Message-ID: <ace2220f-3d75-85cb-54bb-e3bdd0c77f6e@gmail.com>
Date: Mon, 6 Feb 2017 18:30:15 +0100
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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

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

Regards,

Gabriel C.