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Tue, 10 Dec 2024 09:55:31 +0000 Date: Tue, 10 Dec 2024 09:55:30 +0000 Message-ID: <86v7vrsvzh.wl-maz@kernel.org> From: Marc Zyngier To: Vitaly Chikunov Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, Oliver Upton , Shameerali Kolothum Thodi , Will Deacon , "james.morse@arm.com" , Catalin Marinas , "linux-kernel@vger.kernel.org" , Mark Rutland , "Wangzhou (B)" , Gleb Fotengauer-Malinovskiy Subject: Re: v6.13-rc1: Internal error: Oops - Undefined instruction: 0000000002000000 [#1] SMP In-Reply-To: <20241210025127.jmkcpw7ixu4r7hxl@altlinux.org> References: <20241202153618.GA6834@willie-the-truck> <86ttbmt71k.wl-maz@kernel.org> <20241202155940.p267a3tz5ypj4sog@altlinux.org> <86ser6t6fs.wl-maz@kernel.org> <20241202223119.k3uod4ksnlf7gqh2@altlinux.org> <20241203092721.j473dthkbq6wzez7@altlinux.org> <1847e34fa7724d28aeb22d93752f64f2@huawei.com> <20241203221453.mwh6sozyczi4ec2k@altlinux.org> <87jzcfsuep.wl-maz@kernel.org> <20241206205602.7phcrxqsv4c6oul4@altlinux.org> <20241210025127.jmkcpw7ixu4r7hxl@altlinux.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/29.4 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: vt@altlinux.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, oliver.upton@linux.dev, shameerali.kolothum.thodi@huawei.com, will@kernel.org, james.morse@arm.com, catalin.marinas@arm.com, linux-kernel@vger.kernel.org, mark.rutland@arm.com, wangzhou1@hisilicon.com, glebfm@altlinux.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241210_015534_976570_EEB63183 X-CRM114-Status: GOOD ( 23.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, 10 Dec 2024 02:51:27 +0000, Vitaly Chikunov wrote: > > On Fri, Dec 06, 2024 at 11:56:02PM +0300, Vitaly Chikunov wrote: > > On Wed, Dec 04, 2024 at 08:51:26AM +0000, Marc Zyngier wrote: > > > On Tue, 03 Dec 2024 22:14:53 +0000, > > > Vitaly Chikunov wrote: > > > > On Tue, Dec 03, 2024 at 10:03:11AM +0000, Shameerali Kolothum Thodi wrote: > > > > > > Mark has described what the problem is likely to be. 6.6-stable needs > > > to have 6685f5d572c22e10 backported, and it probably should have been > > > Cc: to stable. Can you please apply the following patch to your *host* > > > machine and retest? > > > > We tested the host with this patch applied over 6.6.63 and 6.13-rc1 > > guest does not Oops anymore. > > > > I'd suggest this is also get backported to 6.12.y branch. > > Please, can someone backport this patch to v6.12 and send to stable? This > would be really useful to have this fixed and it's noted this is a > critical bug. Look: it took you a few good days to simply *report* that the hack I gave you was helping. Surely you can similarly wait for a few days for the interested parties to spin proper patches and *test* them? And if you really cannot wait, feel free to backport this change to whatever stable release you feel needs to be fixed and post the result. I promise that I will review it. After all, you are so far the only person with both the HW and the problem. Thanks, M. -- Without deviation from the norm, progress is not possible.