Received: by 2002:a25:ca44:0:0:0:0:0 with SMTP id a65csp6344ybg;
        Mon, 27 Jul 2020 13:55:22 -0700 (PDT)
X-Google-Smtp-Source: ABdhPJzFAHfUJe5zfwEwremwXIId2CszBH+EZngHcrz28n/74dPlj6M5fBxGV/q6Gig16o+glTxN
X-Received: by 2002:aa7:d7d7:: with SMTP id e23mr6818784eds.347.1595883322010;
        Mon, 27 Jul 2020 13:55:22 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1595883322; cv=none;
        d=google.com; s=arc-20160816;
        b=rUhyRENzZJ6ozZ6BSLhX+FdDwpE9Wm5opPfDEAoNz0WlQcFnZmLViOKl+tlqi3a/PY
         GWr6JcNuAK1enIYRXR9JJ4hq0JguDHoIDosO1vUWQQTRA+vED47iHesvELGB7HlOdNOs
         9SL3YxVBprsGuPFGQeW75g8e2McBHE7iRmy924Ud7hiqhgw2MsTXFzphO9tm9ozLQAEf
         2LCNhQvysXAf2qEIfnZP7UAXubnhzEgKsgfYFYoS4nvSQBKxxXd2PZwdMxobc5/mYlCP
         elZj/cnR46hrZUSNVIYjzRd3xJFvGn8q8rmH+MJmHjSDk8eip7wEPuex4npX/DNxTpKp
         7f7A==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:sender:content-transfer-encoding:mime-version
         :message-id:date:references:in-reply-to:subject:cc:to:dkim-signature
         :dkim-signature:from;
        bh=dhykwSSEM4P/f4CIPUxEsuotsrwgjKM/44WpLI7BfPI=;
        b=C7ep4/jByVpIbpyIvpMz35OBjEFhmYae13906F4ou3TlZ1cfNt/HtqglQK9HqPSn0z
         sZH+HQ1HAkuidz8YLIX3P7NVcf/Cr/pCrgyzNqgFWyLju1I0zUNsLMVZSaoZwZ8A2Vo0
         rrrYIAIHJd5YPzwKSHC8eKQHrUHPQSqMMxfCr9raXglKNy8Z0ojhWCT4q0BBYKvD1Fsd
         8QhfxTag6lnZtITgc2e00YBHsDybRiXUxzFWhs3QQ16e5nfXYS/LEJPr5hrWMTxduMmy
         xN58oNctpca5y8L98sZE+oE1AUGWTG/ORzD93VbiBLSXO/Jlqvra7vap30zjpvkEH6MF
         cClQ==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@linutronix.de header.s=2020 header.b=AK2dCcs7;
       dkim=neutral (no key) header.i=@vger.kernel.org header.s=2020e;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18])
        by mx.google.com with ESMTP id y19si6400763edv.611.2020.07.27.13.54.56;
        Mon, 27 Jul 2020 13:55:21 -0700 (PDT)
Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Authentication-Results: mx.google.com;
       dkim=pass header.i=@linutronix.de header.s=2020 header.b=AK2dCcs7;
       dkim=neutral (no key) header.i=@vger.kernel.org header.s=2020e;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1726759AbgG0UvT (ORCPT <rfc822;wxiaokuan@gmail.com> + 99 others);
        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
        <rfc822;linux-kernel@vger.kernel.org>);
        Mon, 27 Jul 2020 16:51:19 -0400
From:   Thomas Gleixner <tglx@linutronix.de>
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 <scott.branden@broadcom.com>, 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: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Scott,

Scott Branden <scott.branden@broadcom.com> 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