From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754446AbdGNPI3 (ORCPT ); Fri, 14 Jul 2017 11:08:29 -0400 Received: from mail.efficios.com ([167.114.142.141]:33814 "EHLO mail.efficios.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754181AbdGNPI2 (ORCPT ); Fri, 14 Jul 2017 11:08:28 -0400 From: Francis Deslauriers To: rostedt@goodmis.org, mhiramat@kernel.org, peterz@infradead.org Cc: mathieu.desnoyers@efficios.com, linux-kernel@vger.kernel.org, Francis Deslauriers Subject: [PATCH 1/2] kprobe: fix: Add _ASM_NOKPROBE to x86 apic interrupt macro Date: Fri, 14 Jul 2017 10:58:34 -0400 Message-Id: <1500044315-9508-2-git-send-email-francis.deslauriers@efficios.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1500044315-9508-1-git-send-email-francis.deslauriers@efficios.com> References: <1500044315-9508-1-git-send-email-francis.deslauriers@efficios.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adding a Kprobe on the apic_timer_interrupt symbol can lead to a kernel crash. This symbol is defined by the apicinterrupt3 macro and adding the symbol to the kprobe blacklist in this macro prevents this issue. Signed-off-by: Francis Deslauriers --- arch/x86/entry/entry_64.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index 4a4c083..67cf702 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -659,6 +659,7 @@ ENTRY(\sym) interrupt \do_sym jmp ret_from_intr END(\sym) +_ASM_NOKPROBE(\sym) .endm #ifdef CONFIG_TRACING -- 2.7.4