linux-kernel - Re: do_IRQ: 0.126 No irq handler for vector (irq -1)

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Date:	Wed, 22 Jul 2015 09:23:06 +0200
From:	Stefan Priebe - Profihost AG <s.priebe@...fihost.ag>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	x86@...nel.org, JBeulich@...e.com,
	LKML <linux-kernel@...r.kernel.org>,
	Sasha Levin <sasha.levin@...cle.com>,
	Jiang Liu <jiang.liu@...ux.intel.com>
Subject: Re: do_IRQ: 0.126 No irq handler for vector (irq -1)


Am 21.07.2015 um 23:15 schrieb Thomas Gleixner:
> On Tue, 21 Jul 2015, Stefan Priebe wrote:
>> Am 20.07.2015 um 12:53 schrieb Thomas Gleixner:
>>> On Mon, 20 Jul 2015, Stefan Priebe - Profihost AG wrote:
>>>> Hello list,
>>>>
>>>> i've 36 servers all running vanilla 3.18.18 kernel which have a very
>>>> high disk and network load.
>>>>
>>>> Since a few days i encounter regular the following error messages and
>>>> pretty often completely hanging disk i/o:
>>>> [535040.439859] do_IRQ: 0.126 No irq handler for vector (irq -1)
>>>>
>>>> All systems are Single E5 Xeons and I'm running irqbalance on them.
>>>
>>> Does it stop if you disable irqbalance ?
>>
>> No. The machines still crash.
> 
> crash as in running into a BUG? Or is it just that disk I/O is stalled?

Sorry i meant I/O is stalled. It crashes to me as i can't login anymore
due to hanging I/O.

> Can you please provide the full dmesg output of such a machine?

Yes (this time from a machine using 3.18.14) =>
http://pastebin.com/raw.php?i=S6kAk0iS

> I'll cook up a debug patch for that against 3.18.18.

That would be great!

Stefan

> Thanks,
> 
> 	tglx
> 
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