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Re: [PATCH 21/30] panic: Introduce the panic pre-reboot notifier list
- To: minyard@xxxxxxx, elder@xxxxxxxx, Alex Elder <elder@xxxxxxxxxx>, cminyard@xxxxxxxxxx
- From: "Guilherme G. Piccoli" <gpiccoli@xxxxxxxxxx>
- Date: Fri, 29 Apr 2022 12:18:29 -0300
- Cc: akpm@xxxxxxxxxxxxxxxxxxxx, bhe@xxxxxxxxxx, pmladek@xxxxxxxx, kexec@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, bcm-kernel-feedback-list@xxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-alpha@xxxxxxxxxxxxxxx, linux-edac@xxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, linux-leds@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, linux-parisc@xxxxxxxxxxxxxxx, linux-pm@xxxxxxxxxxxxxxx, linux-remoteproc@xxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-tegra@xxxxxxxxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, linux-xtensa@xxxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, openipmi-developer@xxxxxxxxxxxxxxxxxxxxx, rcu@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, x86@xxxxxxxxxx, kernel-dev@xxxxxxxxxx, kernel@xxxxxxxxxxxx, halves@xxxxxxxxxxxxx, fabiomirmar@xxxxxxxxx, alejandro.j.jimenez@xxxxxxxxxx, andriy.shevchenko@xxxxxxxxxxxxxxx, arnd@xxxxxxxx, bp@xxxxxxxxx, corbet@xxxxxxx, d.hatayama@xxxxxxxxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, dyoung@xxxxxxxxxx, feng.tang@xxxxxxxxx, gregkh@xxxxxxxxxxxxxxxxxxx, mikelley@xxxxxxxxxxxxx, hidehiro.kawai.ez@xxxxxxxxxxx, jgross@xxxxxxxx, john.ogness@xxxxxxxxxxxxx, keescook@xxxxxxxxxxxx, luto@xxxxxxxxxx, mhiramat@xxxxxxxxxx, mingo@xxxxxxxxxx, paulmck@xxxxxxxxxx, peterz@xxxxxxxxxxxxx, rostedt@xxxxxxxxxxx, senozhatsky@xxxxxxxxxxxx, stern@xxxxxxxxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, vgoyal@xxxxxxxxxx, vkuznets@xxxxxxxxxx, will@xxxxxxxxxx, Alexander Gordeev <agordeev@xxxxxxxxxxxxx>, Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Chris Zankel <chris@xxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>, Dexuan Cui <decui@xxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Helge Deller <deller@xxxxxx>, Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>, "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>, James Morse <james.morse@xxxxxxx>, Johannes Berg <johannes@xxxxxxxxxxxxxxxx>, "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx>, Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>, Matt Turner <mattst88@xxxxxxxxx>, Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>, Max Filippov <jcmvbkbc@xxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Paul Mackerras <paulus@xxxxxxxxx>, Pavel Machek <pavel@xxxxxx>, Richard Henderson <rth@xxxxxxxxxxx>, Richard Weinberger <richard@xxxxxx>, Robert Richter <rric@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>, Sven Schnelle <svens@xxxxxxxxxxxxx>, Tony Luck <tony.luck@xxxxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Wei Liu <wei.liu@xxxxxxxxxx>
- Delivery-date: Fri, 29 Apr 2022 15:20:07 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 28/04/2022 13:26, Corey Minyard wrote:
> [...]
>
> For the IPMI portion:
>
> Acked-by: Corey Minyard <cminyard@xxxxxxxxxx>
Thanks Alex and Corey for the ACKs!
>
> Note that the IPMI panic_event() should always return, but it may take
> some time, especially if the IPMI controller is no longer functional.
> So the risk of a long delay is there and it makes sense to move it very
> late.
>
Thanks, I agree - the patch moves it to the (latest - 1) position, since
some arch code might run as the latest and effectively stops the machine.
Cheers,
Guilherme
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