linux-kernel - Re: [BUG] do_IRQ: 7.33 No irq handler for vector

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Message-ID: <alpine.DEB.2.20.1801191621200.2181@nanos>
Date:   Fri, 19 Jan 2018 16:24:31 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     "jianchao.wang" <jianchao.w.wang@...cle.com>
cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Christoph Hellwig <hch@....de>,
        Keith Busch <keith.busch@...el.com>,
        Sagi Grimberg <sagi@...berg.me>, Jens Axboe <axboe@...nel.dk>
Subject: Re: [BUG] do_IRQ: 7.33 No irq handler for vector

On Fri, 19 Jan 2018, jianchao.wang wrote:
> When I did cpu hotplug stress test, I found this log on my machine.
> 
> [  267.161043] do_IRQ: 7.33 No irq handler for vector
> 
> I add a dump_stack below the bug and get following log:

Well, that's pretty uninteresting. What's interesting is which CPU got
unplugged.

> The vector 33 here is used by a NVMe card.

CC'ed NVME folks

Thanks,

	tglx