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Subject: Re: [PATCH v5] kernel/signal: Signal-based pre-coredump notification
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     Oleg Nesterov <oleg@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Arnd Bergmann <arnd@arndb.de>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Khalid Aziz <khalid.aziz@oracle.com>,
        Kate Stewart <kstewart@linuxfoundation.org>,
        Helge Deller <deller@gmx.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Christian Brauner <christian@brauner.io>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Dave Martin <Dave.Martin@arm.com>,
        Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
        Michal Hocko <mhocko@kernel.org>,
        Rik van Riel <riel@surriel.com>,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Roman Gushchin <guro@fb.com>,
        Marcos Paulo de Souza <marcos.souza.org@gmail.com>,
        Dominik Brodowski <linux@dominikbrodowski.net>,
        Cyrill Gorcunov <gorcunov@openvz.org>,
        Yang Shi <yang.shi@linux.alibaba.com>,
        Jann Horn <jannh@google.com>,
        Kees Cook <keescook@chromium.org>, x86@kernel.org,
        linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
        "Victor Kamensky (kamensky)" <kamensky@cisco.com>,
        xe-linux-external@cisco.com, Stefan Strogin <sstrogin@cisco.com>,
        Enke Chen <enkechen@cisco.com>
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 <20181121163711.2c00316784d221eb1750edb0@linux-foundation.org>
 <ae3b48ef-6bb0-2bc2-eca6-651fdb2dce37@cisco.com>
From:   Enke Chen <enkechen@cisco.com>
Message-ID: <44f0214e-93cf-ef19-f590-1a1a9e0f44b3@cisco.com>
Date:   Wed, 21 Nov 2018 17:18:25 -0800
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Hi, Andrew:

On 11/21/18 5:09 PM, Enke Chen wrote:
> Hi, Andrew:
> 
> On 11/21/18 4:37 PM, Andrew Morton wrote:

>> Do we have other linux-specific signal extensions which could piggyback onto that?
> 
> No. There are enough existing signals that an application can choose for this
> purpose, such as SIGUSR1, SIGUSR1, and any of the RT signals.
> 
> Thanks.  -- Enke
> 

Let me clarify: I meant this feature is complete by itself. But you seem to ask a
somewhat different question, for which I am not aware of.

Thanks.  -- Enke