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Date: Fri, 19 Jan 2018 16:24:31 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: "jianchao.wang" <jianchao.w.wang@oracle.com>
cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Christoph Hellwig <hch@lst.de>, Keith Busch <keith.busch@intel.com>,
        Sagi Grimberg <sagi@rimberg.me>, Jens Axboe <axboe@kernel.dk>
Subject: Re: [BUG] do_IRQ: 7.33 No irq handler for vector
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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