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Date: Fri, 9 Sep 2022 14:34:26 -0700
From: Kees Cook <keescook@...omium.org>
To: Florian Mayer <fmayer@...gle.com>
Cc: Jonathan Corbet <corbet@....net>,
Alexander Viro <viro@...iv.linux.org.uk>,
"Eric W. Biederman" <ebiederm@...ssion.com>,
linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-doc@...r.kernel.org, Oleg Nesterov <oleg@...hat.com>,
Christian Brauner <brauner@...nel.org>,
Evgenii Stepanov <eugenis@...gle.com>,
Peter Collingbourne <pcc@...gle.com>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH RESEND] Add sicode to /proc/<PID>/stat.
On Fri, Sep 09, 2022 at 11:06:17AM -0700, Florian Mayer wrote:
> In order to enable additional debugging features, Android init needs a
> way to distinguish MTE-related SEGVs (with si_code of SEGV_MTEAERR)
> from other SEGVs. This is not possible with current APIs, neither by
> the existing information in /proc/<pid>/stat, nor via waitpid.
Normally no changes are made to "stat" any more. New additions are made
to "status" instead. Could it live there instead?
-Kees
--
Kees Cook
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