From mboxrd@z Thu Jan 1 00:00:00 1970 From: yang.shi@linaro.org (Shi, Yang) Date: Fri, 12 Feb 2016 09:43:11 -0800 Subject: [PATCH] arm64: make irq_stack_ptr more robust In-Reply-To: <20160212174116.GI17901@arm.com> References: <1455227590-9837-1-git-send-email-yang.shi@linaro.org> <56BDE260.20504@arm.com> <56BE18AB.4090902@linaro.org> <20160212174116.GI17901@arm.com> Message-ID: <56BE19AF.7000605@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 2/12/2016 9:41 AM, Will Deacon wrote: > On Fri, Feb 12, 2016 at 09:38:51AM -0800, Shi, Yang wrote: >> On 2/12/2016 5:47 AM, James Morse wrote: >>> On 11/02/16 21:53, Yang Shi wrote: >>>> Switching between stacks is only valid if we are tracing ourselves while on the >>>> irq_stack, so it is only valid when in current and non-preemptible context, >>>> otherwise is is just zeroed off. >>> >>> Given it was picked up with CONFIG_DEBUG_PREEMPT: >>> >>> Fixes: 132cd887b5c5 ("arm64: Modify stack trace and dump for use with irq_stack") >> >> Wii add in v2. > > I already queued the patch with this and the whitespace fix, so no need > for a v2. Thanks so much. Yang > > Will >