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=-4.1 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 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 E6E9EC433E1 for ; Mon, 27 Jul 2020 20:51:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B9D6020809 for ; Mon, 27 Jul 2020 20:51:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="AK2dCcs7"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="LJ3Pkd8V" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726846AbgG0UvT (ORCPT ); Mon, 27 Jul 2020 16:51:19 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:57994 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726268AbgG0UvT (ORCPT ); Mon, 27 Jul 2020 16:51:19 -0400 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1595883077; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dhykwSSEM4P/f4CIPUxEsuotsrwgjKM/44WpLI7BfPI=; b=AK2dCcs7xSlaxYkM3uXuNl0xGhiAmK9gvA3IMxs9h0WsNDp0CzcpRyyglDb81EqHBP8D7p umBqTgf3vjxF3WiMS9gGoPtKNO/cwB26yVXwhu6ev0FZ0RD0+vYTd0hcPPK5SU6gm7UHLK lA1IChVvNlkOpmuVWOjp5nByNG+FMpC1hAuHs5bnuBxy+1iEzjBLpNKjyC1Da1hiKpPspA 5ttPOf6QdMw0kVK9mJwwRPbV/m1AOwmqYxb/qH/K14IuuX1onhLhiI5XNcIi6CGRJmI0aj 53a05EIUdl7KcPEhE7UGCkeZrTgAZW3miE48KYy/qZBm842Zc43fk2tw9GERGA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1595883077; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dhykwSSEM4P/f4CIPUxEsuotsrwgjKM/44WpLI7BfPI=; b=LJ3Pkd8VDO5Q+V30VSkd15T9XogzrwJnKeoF18D8K5FYeGuhiEKj90knwj+/8sCps5uqc1 9o2OVD/KweLjpPBg== To: Scott Branden , bp@alien8.de, x86@kernel.org, mingo@redhat.com Cc: linux-kernel@vger.kernel.org Subject: Re: Kernel panic - not syncing: IO-APIC + timer doesn't work! In-Reply-To: <18cb4d48-6571-1fdb-5902-ba64c23eee75@broadcom.com> References: <18cb4d48-6571-1fdb-5902-ba64c23eee75@broadcom.com> Date: Mon, 27 Jul 2020 22:51:16 +0200 Message-ID: <87h7tsbs1n.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Scott, Scott Branden writes: > Occasionally I get the following Kernel panic on boot.=C2=A0 This is > running on the latest kernel but have seen it previously as well. > "Kernel panic - not syncing: IO-APIC + timer doesn't work!=C2=A0 Boot with > apic=3Ddebug and send a report." > > I don't know who I am support to send a report to.=C2=A0 But here is the = log with apic=3Ddebug > [=C2=A0=C2=A0=C2=A0 0.006000] ENABLING IO-APIC IRQs > [=C2=A0=C2=A0=C2=A0 0.007000] ..TIMER: vector=3D0x30 apic1=3D0 pin1=3D2 a= pic2=3D-1 pin2=3D-1 > [=C2=A0=C2=A0=C2=A0 0.007000] ..MP-BIOS bug: 8254 timer not connected to = IO-APIC > [=C2=A0=C2=A0=C2=A0 0.007000] ...trying to set up timer (IRQ0) through th= e 8259A ... > [=C2=A0=C2=A0=C2=A0 0.007000] ..... (found apic 0 pin 2) ... > [=C2=A0=C2=A0=C2=A0 0.007000] ....... failed. > [=C2=A0=C2=A0=C2=A0 0.007000] ...trying to set up timer as Virtual Wire I= RQ... > [=C2=A0=C2=A0=C2=A0 0.007000] ..... failed. > [=C2=A0=C2=A0=C2=A0 0.007000] ...trying to set up timer as ExtINT IRQ... > [=C2=A0=C2=A0=C2=A0 0.007000] ..... failed :(. > [=C2=A0=C2=A0=C2=A0 0.007000] Kernel panic - not syncing: IO-APIC + timer= doesn't work!=C2=A0 Boot with apic=3Ddebug and send a report.=C2=A0 Then t= ry booting with the 'noapic' option. Nothing which rings a bell. Can you please provide a boot log from a successful boot with apic=3Ddebug on the command line? Also you might check whether there are BIOS updates for this board. The early Ryzen BIOSes had some rough edges. Thanks, tglx