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

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Message-ID: <546fbd173aec3b7fc07d253393920bf5@kernel.org>
Date:   Mon, 03 Apr 2023 14:19:29 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     "zhangjianhua (E)" <chris.zjh@...wei.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        "Gowans, James" <jgowans@...zon.com>, zouyipeng@...wei.com,
        "Raslan, KarimAllah" <karahmed@...zon.com>,
        "Woodhouse, David" <dwmw@...zon.co.uk>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] irq: fasteoi handler re-runs on concurrent invoke

On 2023-04-03 14:17, zhangjianhua (E) wrote:
> 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.

Neither solutions are remotely acceptable.

I'll look at something a bit more palatable.

         M.
-- 
Jazz is not dead. It just smells funny...