From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt1-f197.google.com (mail-qt1-f197.google.com [209.85.160.197]) by kanga.kvack.org (Postfix) with ESMTP id 2B2A58E0002 for ; Mon, 14 Jan 2019 12:58:07 -0500 (EST) Received: by mail-qt1-f197.google.com with SMTP id p24so25419594qtl.2 for ; Mon, 14 Jan 2019 09:58:07 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id m64sor43035571qkd.41.2019.01.14.09.58.05 for (Google Transport Security); Mon, 14 Jan 2019 09:58:06 -0800 (PST) Subject: Re: [PATCH v2] rbtree: fix the red root References: <20190111181600.GJ6310@bombadil.infradead.org> <864d6b85-3336-4040-7c95-7d9615873777@lechnology.com> <8v11ZOLyufY7NLAHDFApGwXOO_wGjVHtsbw1eiZ__YvI9EZCDe_4FNmlp0E-39lnzGQHhHAczQ6Q6lQPzVU2V6krtkblM8IFwIXPHZCuqGE=@protonmail.ch> <5298bfcc-0cbc-01e8-85b2-087a380fd3fe@lca.pw> From: Qian Cai Message-ID: <51950f43-1daf-9192-ce9b-7a1ddae3edd2@lca.pw> Date: Mon, 14 Jan 2019 12:58:03 -0500 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Esme Cc: "dgilbert@interlog.com" , David Lechner , Michel Lespinasse , Andrew Morton , "jejb@linux.ibm.com" , "martin.petersen@oracle.com" , "joeypabalinas@gmail.com" , linux-mm , LKML Unfortunately, I could not trigger any of those here both in a bare-metal and virtual machines. All I triggered were hung tasks and soft-lockup due to fork bomb. The only other thing I can think of is to setup kdump to capture a vmcore when either GPF or BUG() happens, and then share the vmcore somewhere, so I might pork around to see where the memory corruption looks like.