linux-kernel - Re: [PATCH v2 0/3] irqchip/gic-v3-its: Fix LPI pending table handling vs PREEMPT

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Message-ID: <87ee7c72iz.wl-maz@kernel.org>
Date:   Fri, 19 Nov 2021 12:28:36 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     Valentin Schneider <valentin.schneider@....com>,
        linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ard Biesheuvel <ardb@...nel.org>
Subject: Re: [PATCH v2 0/3] irqchip/gic-v3-its: Fix LPI pending table handling vs PREEMPT_RT

On Fri, 19 Nov 2021 11:14:53 +0000,
Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote:
> 
> On 2021-10-27 16:15:03 [+0100], Valentin Schneider wrote:
> > Hi folks,
> Hi,
> 
> > This is my take at fixing [1]. Reading about the LPI tables situation was
> > entertaining.
> > 
> > Tested against kexec on an Ampere eMAG. Seems to be working fine atop
> > 5.15-rc6. On the other hand, I can only issue one kexec from
> > 5.15-rc6-rt12 - if I then issue another one on the new kernel, I get tasks
> > hanging. That is true even without my patches and without
> > CONFIG_PREEMPT_RT.
> 
> What is the status of this? I haven't seen any replies, is this just
> sitting to be merged?

No. This is in my review queue, and I'm massively behind. Nobody else
seems to risk reviewing GIC stuff (no idea why...).

	M.

-- 
Without deviation from the norm, progress is not possible.