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b=ck2Vz6iEhaK6Q5BPLU95zOlkUyMZHVsCVcsQ/QCu3AgfEoL+k8ri/Lqo5NHpjLuFx eiahSHamyqEBzIQLdplojEK/CjwMzfB6Eq6QPo/DeCkWyrIiZS0gD7OYIvgh6onRCp 0pHXWrgLNc6JIWfLF6+sUUlD0PfUaX7zV4qq8viI= Date: Fri, 20 Mar 2026 19:21:53 -0700 From: Andrew Morton To: Ritesh Harjani (IBM) Cc: Mathieu Desnoyers , "Harry Yoo (Oracle)" , linuxppc-dev@lists.ozlabs.org, Harry Yoo , Nathan Chancellor , Thomas =?ISO-8859-1?Q?Wei=DFschuh?= , Michal Clapinski , Thomas Gleixner , Steven Rostedt , Masami Hiramatsu , linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org, Srikar Dronamraju , Madhavan Srinivasan Subject: Re: NULL pointer dereference when booting ppc64_guest_defconfig in QEMU on -next Message-Id: <20260320192153.759d6fec57f04fb653a0dac7@linux-foundation.org> In-Reply-To: References: <20260319233745.GA769346@ax162> <7780a471-9d99-40a7-ade7-0c4594ac36c7@efficios.com> <7458d8fd-5922-4e0b-9cd5-91880282aaa3@efficios.com> <7a8faee8-0eb5-4e58-a6d5-ef711791e3f4@efficios.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 2C4CD1A0002 X-Stat-Signature: 8ceemmkapiczud3rtzpiscz465b1s1dh X-HE-Tag: 1774059716-581798 X-HE-Meta: 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 phr4+7u5 gb7JiLgOjO0v0Eo1wSjJiVvo6Ap9QYs5wPQnnaEMp61PTLEMUvBtyYWyyYccMEQd9AEN4oKvW6jcUoOTJTKQ40bXk9bJIk2HJpuNVYbkNBWJVCaNObK2gBhE8m9d1XPjL/X3w9vMA7Cl6CpHsEGQhfpGBmGl6oPNHG/S9skoBSe8m2K1VfeSK8zk5NCNlJkscy2r+mUNxsq1XE1r0l8v/p3I6LG/EOGXmhZEjtfRvWeDSM2nBlapTyDbkBEvEJlwC6rxToVtWlr6YweuB2nhxz0tLCpO8dglo5zzYG+ucMkzjfXiHTluT0fpuMvigEQKs3d/IbbtP/PkZTMU2EXhVUExJtsbYxbgUciTmY32zLprEvjKdl+ELugOgx263cpLOnr4I8c5Luo6DQ/cbGjiPWlvnXJ2h+NHmgBwV Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, 21 Mar 2026 06:42:41 +0530 Ritesh Harjani (IBM) wrote: > Looks like this is causing regressions in linux-next with warnings > similar to what Harry also pointed out. Do we have any solution for > this, or are we planning to hold on to this patch[1] and maybe even > remove it temporarily from linux-next, until this is fixed? Yes, I'll disable this patchset.