From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Metcalf Subject: Re: [PATCH v8 06/14] task_isolation: provide strict mode configurable signal Date: Tue, 20 Oct 2015 21:30:36 -0400 Message-ID: <5626EABC.9060202@ezchip.com> References: <1445373372-6567-1-git-send-email-cmetcalf@ezchip.com> <1445373372-6567-7-git-send-email-cmetcalf@ezchip.com> <20151020205610.51b3d742@grimm.local.home> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20151020205610.51b3d742-2kNGR76GQU9OHLTnHDQRgA@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Steven Rostedt Cc: Gilad Ben Yossef , Ingo Molnar , Peter Zijlstra , Andrew Morton , Rik van Riel , Tejun Heo , Frederic Weisbecker , Thomas Gleixner , "Paul E. McKenney" , Christoph Lameter , Viresh Kumar , Catalin Marinas , Will Deacon , Andy Lutomirski , linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-api@vger.kernel.org On 10/20/2015 8:56 PM, Steven Rostedt wrote: > On Tue, 20 Oct 2015 16:36:04 -0400 > Chris Metcalf wrote: > >> Allow userspace to override the default SIGKILL delivered >> when a task_isolation process in STRICT mode does a syscall >> or otherwise synchronously enters the kernel. >> > Is this really a good idea? This means that there's no way to terminate > a task in this mode, even if it goes astray. It doesn't map SIGKILL to some other signal unconditionally. It just allows the "hey, you broke the STRICT contract and entered the kernel" signal to be something besides the default SIGKILL. -- Chris Metcalf, EZChip Semiconductor http://www.ezchip.com