linux-kernel - Re: [PATCH] irq: fasteoi handler re-runs on concurrent invoke

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Message-ID: <1a974f41-83ec-9c7f-ddf1-cb093ae95046@huawei.com>
Date:   Mon, 3 Apr 2023 21:17:26 +0800
From:   "zhangjianhua (E)" <chris.zjh@...wei.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        "Gowans, James" <jgowans@...zon.com>,
        "zouyipeng@...wei.com" <zouyipeng@...wei.com>
CC:     "maz@...nel.org" <maz@...nel.org>,
        "Raslan, KarimAllah" <karahmed@...zon.com>,
        "Woodhouse, David" <dwmw@...zon.co.uk>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] irq: fasteoi handler re-runs on concurrent invoke

Hi Thomas

I have the same problem as James and Yipeng, while modify the irq affinity

concurrently during LPI interrupt processing, it does cause interrupt loss.

Fortunately, James and Yipeng give their patches separately with the similar

solutions, and hope you'll take this issue seriously, thanks.

在 2023/3/22 18:37, Thomas Gleixner 写道:
> On Wed, Mar 22 2023 at 07:48, James Gowans wrote:
>> On Wed, 2023-03-22 at 14:26 +0800, Yipeng Zou wrote:
>> Thomas, would you be open to taking the patch to tweak the handle_fasteoi_irq
>> handler? Or is there a different solution to this problem which you
>> prefer?
> It's in my backlog.