Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 825DDC433F5 for ; Tue, 28 Dec 2021 08:34:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235695AbhL1Iew (ORCPT ); Tue, 28 Dec 2021 03:34:52 -0500 Received: from mengyan1223.wang ([89.208.246.23]:39554 "EHLO mengyan1223.wang" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231670AbhL1Iev (ORCPT ); Tue, 28 Dec 2021 03:34:51 -0500 Received: from [IPv6:240e:358:1148:6f00:dc73:854d:832e:4] (unknown [IPv6:240e:358:1148:6f00:dc73:854d:832e:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-384) server-digest SHA384) (Client did not present a certificate) (Authenticated sender: xry111@mengyan1223.wang) by mengyan1223.wang (Postfix) with ESMTPSA id AB33766215; Tue, 28 Dec 2021 03:34:41 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mengyan1223.wang; s=mail; t=1640680490; bh=E5j+9tgFVq0+iQWcyDX7IvHFLuER19sgJwHZHiTOdJg=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=swfzuJLgiG9rKodcOUC7hK1Q9iGiLZByj83y7Dhnb+0+DfJExwXnD/wj4QfHuhdo7 ZsRum9/Q2KJQQzu7AJDbOOPIkp8r2gTZxoOAl7f5e8plvK7Cn4JskrjMOdpJtKbnLj g5LqzaKlQQSMjbX4xtn8iR8S4Wnmd2wAIEd2HpNxCMa6PQNLYLMIsAapFYZFZ2KHE5 gixFHUCr+M5UaD/mmiyEj0ySHw7y4OGS2IMMM6SSGyt7quW1fF2EWbvpbw7J9vGSqp jzLuY2LN1LS1Rb4Hy4xZV1DBO2yUH6iQ6D0exmU5/Av1G4Cdo5bjaN2TgT1/JVaGqk Hf12T/vgAjttg== Message-ID: <587ab54d77af2fb4cdbe0530cdd5e550c3e968db.camel@mengyan1223.wang> Subject: Re: [PATCH V5 00/22] arch: Add basic LoongArch support From: Xi Ruoyao To: Huacai Chen Cc: Huacai Chen , Arnd Bergmann , Andy Lutomirski , Thomas Gleixner , Peter Zijlstra , Andrew Morton , David Airlie , Jonathan Corbet , Linus Torvalds , linux-arch , "open list:DOCUMENTATION" , LKML , Xuefeng Li , Yanteng Si , Jiaxun Yang Date: Tue, 28 Dec 2021 16:34:33 +0800 In-Reply-To: References: <20211013063656.3084555-1-chenhuacai@loongson.cn> <722477bcc461238f96c3b038b2e3379ee49efdac.camel@mengyan1223.wang> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2021-12-21 at 15:53 +0800, Huacai Chen wrote: > On Mon, Dec 20, 2021 at 5:04 PM Xi Ruoyao > wrote: > > > > The snapshot panics on my system under high pressure (building and > > testing GCC).  The panic message is pasted, but it's kind of broken up > > likely because multiple CPU cores were outputing to the serial console > > simutaniously. > > > > The config is attached.  I'm not sure the reason of the panic (bug in > > the patches or bug in mainline kernel?) Do you have some pointers to > > diagnostic and fix the issue? > > > > [ 5391.004745] CPU 1 Unable to handle kernel paging request at virtual address 000000000040007e, era == 90000000003aa07c, ra == 90000000003aa84c /* snip */ > We also found that the latest github kernel has some stable issues, > and we are investigating. I rebased the patches onto 438645193e59e91761ccb3fa55f6ce70b615ff93 and the problem *seems* gone. Not sure if it's something fixed in the mainline or some more strange thing. -- Xi Ruoyao School of Aerospace Science and Technology, Xidian University