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=-3.9 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 4E974C388F7 for ; Tue, 3 Nov 2020 15:22:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E32E920757 for ; Tue, 3 Nov 2020 15:22:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="nSaC6d6T"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="0TvEaE81" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728174AbgKCPWl (ORCPT ); Tue, 3 Nov 2020 10:22:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728103AbgKCPWV (ORCPT ); Tue, 3 Nov 2020 10:22:21 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8072CC0613D1 for ; Tue, 3 Nov 2020 07:22:21 -0800 (PST) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1604416939; 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: in-reply-to:in-reply-to:references:references; bh=oWXdxQUJkn6yqnaEePd/GeWBim97AN6dJUIHhqxUnmY=; b=nSaC6d6TOLHSOXx6g0vMzDYS4y9VAlyEdFAJr+6aUC2+Gi50dxzPsJNx4N3yVjRvJ1rhmc u6Sm5IGA2/uMfW4XTLQ/OEdmNTvrHCaITlEiNOWy1uHoCKve07lHOu2EIzqY2v6CruLm2s lwDEIj1B1KLUTwrYYBNK/47Gcm8Unr9DX+sJ14AyrwArYuznnErJhDpCGjtfXcYsXi0QvD qW7Sgas+zBcM0sc2Gv4dE4GiN/A4Htd35JsLinhMMUsBO+u4bg+oBRCUspOgCxRrNWzPfH LQsdp4gBd06iY/egLBa3Q0fPQs85umQalUVbXaNKt2PrugE4oBr0SL6nACFMpA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1604416939; 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: in-reply-to:in-reply-to:references:references; bh=oWXdxQUJkn6yqnaEePd/GeWBim97AN6dJUIHhqxUnmY=; b=0TvEaE81Y9EpRiG2BuYjaFKRR6MXbHWdqE0jrhVZHb+oZc+xGW6eXc5ZWMsiISh/JyAqXl jNi0sxCRuEZ0c+BQ== To: lkp , David Woodhouse Cc: LKML , x86@kernel.org, lkp@lists.01.org, lkp@intel.com Subject: Re: [x86/ioapic] b643128b91: Kernel panic - not syncing: timer doesn't work through Interrupt-remapped IO-APIC In-Reply-To: <20201103143130.GA5804@xsang-OptiPlex-9020> References: <20201103143130.GA5804@xsang-OptiPlex-9020> Date: Tue, 03 Nov 2020 16:22:19 +0100 Message-ID: <871rha31p0.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! On Tue, Nov 03 2020 at 22:31, lkp wrote: > FYI, we noticed the following commit (built with gcc-9): > > commit: b643128b917ca8f1c8b1e14af64ebdc81147b2d1 ("x86/ioapic: Use irq_find_matching_fwspec() to find remapping irqdomain") > > [ 3.148819] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 > [ 3.154825] DMAR: DRHD: handling fault status reg 2 > [ 3.159701] DMAR: [INTR-REMAP] Request device [f0:1f.7] fault index 0 [fault reason 37] Blocked a compatibility format interrupt request > [ 3.173870] Kernel panic - not syncing: timer doesn't work through Interrupt-remapped IO-APIC > [ 3.182381] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.0-rc1-00029-gb643128b917c #1 > [ 3.190370] Hardware name: Supermicro SYS-5018D-FN4T/X10SDV-8C-TLN4F, BIOS 1.1 03/02/2016 > [ 3.198534] Call Trace: > [ 3.200983] dump_stack+0x57/0x6a > [ 3.204298] panic+0x102/0x2d2 > [ 3.207349] panic_if_irq_remap.cold+0x5/0x5 > [ 3.211613] check_timer+0x1f6/0x694 > [ 3.215184] ? printk+0x58/0x6f > [ 3.218320] setup_IO_APIC+0x17b/0x1c3 > [ 3.222067] x86_late_time_init+0x20/0x30 > [ 3.226077] start_kernel+0x40c/0x4c7 > [ 3.229734] secondary_startup_64_no_verify+0xb8/0xbb It's not reproducing here. Can you please redo the test with apic=verbose on the kernel command line and provide the full dmesg output? Thanks, tglx