From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2FFDCC433ED for ; Mon, 17 May 2021 08:45:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 08D4861029 for ; Mon, 17 May 2021 08:45:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235531AbhEQIq2 (ORCPT ); Mon, 17 May 2021 04:46:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47100 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235027AbhEQIq1 (ORCPT ); Mon, 17 May 2021 04:46:27 -0400 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BE35C061573 for ; Mon, 17 May 2021 01:45:09 -0700 (PDT) Received: from zn.tnic (p200300ec2f061b00f416f01ed532e4bf.dip0.t-ipconnect.de [IPv6:2003:ec:2f06:1b00:f416:f01e:d532:e4bf]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id C8D211EC0345; Mon, 17 May 2021 10:45:05 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1621241105; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=XT1VDWp+32xfBKa+NxSvVUNJdTSwHiQt0pKtZlWF3Fo=; b=d86DH9BA1D5hKYz4TGaXAEu9X9otE1AwGMoowBVFIjgaMq00StL+jcMx4/qnidJVV9KNhT R0EiPEh1KkqP1ywZ2e3+g4Y4EEh3z730jfT54rJHWvIaWWRrBVuzD6JNUVSbhoej9Sz+tQ PdQc2GDY5dxZIN9sqwkO5b6g0N7ypgs= Date: Mon, 17 May 2021 10:44:59 +0200 From: Borislav Petkov To: Mikhail Gavrilov Cc: Linux List Kernel Mailing , amd-gfx@lists.freedesktop.org Subject: Re: [5.13-rc1][bug] often hangs for no reason Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 17, 2021 at 03:27:23AM +0500, Mikhail Gavrilov wrote: > Hi folks. > 5.13-rc1 after 5.13-rc0 is a disaster because it hangs and hangs again > after reboot. > All hang's have in common is that they all happens in > smp_call_function_many_cond function (I compared all trace [1], [2], > [3], [4], [5]) > I do not know if this is a known problem or not, so I'm reporting here. Looks like some splat, lockdep probably, in amdgpu when it gets loaded. Maybe locking's botched although the beginning of the splats is missing for whatever reason... Adding them to Cc in case they have a better idea. > Full logs here: > [1] https://pastebin.com/u7SkKGDT > [2] https://pastebin.com/fNae4dSL > [3] https://pastebin.com/jEDMjQDy > [4] https://pastebin.com/vEMhWGgE > [5] https://pastebin.com/fvWx5ctR > -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette