From: "ito-yuichi@fujitsu.com" <ito-yuichi@fujitsu.com>
To: 'Marc Zyngier' <maz@kernel.org>
Cc: "sumit.garg@linaro.org" <sumit.garg@linaro.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"jason@lakedaemon.net" <jason@lakedaemon.net>,
"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
"will@kernel.org" <will@kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 0/2] Enable support IPI_CPU_CRASH_STOP to be pseudo-NMI
Date: Tue, 29 Sep 2020 05:50:04 +0000 [thread overview]
Message-ID: <OSAPR01MB4227204DB45A285761B520998F320@OSAPR01MB4227.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <498b10b51f5c961f00b3d18e17c52e94@kernel.org>
Hi Marc
Thank you for your reply.
> On 2020-09-28 03:43, ito-yuichi@fujitsu.com wrote:
> > Hi Marc, Sumit
> >
> > I would appreciate if you have any advice on this patch.
>
> I haven't had a chance to look into it, as I'm not even sure I'll take the core
> series in the first place (there are outstanding regressions I can't reproduce,
> let alone fix them).
>
I understand it.
Please let me know if there is anything I can do.
I sincerely hope that your patches will be merged into the mainline.
> >
> > Yuichi Ito
> >
> >> Enable support IPI_CPU_CRASH_STOP to be pseudo-NMI
> >>
> >> This patchset enables IPI_CPU_CRASH_STOP IPI to be pseudo-NMI.
> >> This allows kdump to collect system information even when the CPU is
> >> in a HARDLOCKUP state.
> >>
> >> Only IPI_CPU_CRASH_STOP uses NMI and the other IPIs remain normal
> >> IRQs.
> >>
> >> The patch has been tested on ThunderX.
>
> Which ThunderX? TX2 (at least the incarnation I used in the past) wasn't able
> to correctly deal with priorities.
I tried it with ThunderX CN8890.
If you tell me steps to reproduce the problem of TX2, I will investigate it with TX as well.
> M.
> --
> Jazz is not dead. It just smells funny...
Thank you and best regards,
Yuichi Ito
next prev parent reply other threads:[~2020-09-29 5:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-24 4:42 [PATCH 0/2] Enable support IPI_CPU_CRASH_STOP to be pseudo-NMI Yuichi Ito
2020-09-24 4:42 ` [PATCH 1/2] irqchip/gic-v3: Enable support for SGIs to act as NMIs Yuichi Ito
2020-09-24 4:42 ` [PATCH 2/2] Register IPI_CPU_CRASH_STOP IPI as pseudo-NMI Yuichi Ito
2020-09-28 2:43 ` [PATCH 0/2] Enable support IPI_CPU_CRASH_STOP to be pseudo-NMI ito-yuichi
2020-09-28 8:59 ` Marc Zyngier
2020-09-29 5:50 ` ito-yuichi [this message]
2020-09-29 10:54 ` Marc Zyngier
2020-09-30 8:51 ` ito-yuichi
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