linux-kernel - Re: [PATCH] panic: Add sysctl/cmdline to dump all CPUs backtraces on oops event

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Message-ID: <20200314142820.GQ22433@bombadil.infradead.org>
Date:   Sat, 14 Mar 2020 07:28:20 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     "Guilherme G. Piccoli" <gpiccoli@...onical.com>,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        mcgrof@...nel.org, keescook@...omium.org, yzaikin@...gle.com,
        tglx@...utronix.de, akpm@...ux-foundation.org, kernel@...ccoli.net
Subject: Re: [PATCH] panic: Add sysctl/cmdline to dump all CPUs backtraces on
 oops event

On Tue, Mar 10, 2020 at 01:59:15PM -0700, Randy Dunlap wrote:
> > +oops_all_cpu_backtrace:
> > +================
> > +
> > +Determines if kernel should NMI all CPUs to dump their backtraces when
> 
> I would much prefer that to be written without using NMI as a verb.

Concrete suggestion: "If this option is set, the kernel will send an NMI to
all CPUs to dump ..."