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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6AA21C6FD18 for ; Wed, 19 Apr 2023 09:38:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232450AbjDSJi1 (ORCPT ); Wed, 19 Apr 2023 05:38:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231590AbjDSJi0 (ORCPT ); Wed, 19 Apr 2023 05:38:26 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 532DCE7; Wed, 19 Apr 2023 02:38:25 -0700 (PDT) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1681897102; 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=3ahWW2+Q3S/RvB6qR72sS8HIsTdCuAt1S9bqdH2z+7w=; b=qc5CvobL2r3hZWvSzSJqNdvsc3YOVQi05uwUK7zoWReiby465BIJI/zuxMUu5qXpSXXyVJ vzTv9ILxgQrJkJR8zzEJpve7BFlEE6OioXHOKbuuQuiRK8FoLk871pSTksNqCCIxl8ucz5 wmXiG7xJVjNb7Bo6RoRV9J4Lz7UUc8BPgbwLe4YNDPdH4DGHf7Ptnhs3DupHwgSPtRAHBW rOKHJXmOZJEWGQe1t29Q6HPEqx9hwBtb4vRyuoV7kVeWG6zEx76YqS0yoDbWMbvMs5WCQW MFgUf5iaArW/mcuy/Cw2R/4IofuuCDjuJoLMyvJOsnpRGsf+HQwI40VP2uCO1Q== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1681897102; 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=3ahWW2+Q3S/RvB6qR72sS8HIsTdCuAt1S9bqdH2z+7w=; b=h9kGxEZF0/449e5pzKL8RjkYF5PGK7O3l0s7czECIEu7mvAFDvboALol8fOrjIlj6I4Yg9 stFZXVlGYGrqZrAQ== To: Paul Menzel Cc: linux-kernel@vger.kernel.org, x86@kernel.org, David Woodhouse , Andrew Cooper , Brian Gerst , Arjan van de Veen , Paolo Bonzini , Paul McKenney , Tom Lendacky , Sean Christopherson , Oleksandr Natalenko , "Guilherme G. Piccoli" , Piotr Gorski , David Woodhouse , Usama Arif , =?utf-8?B?SsO8cmdlbiBHcm/Dnw==?= , Boris Ostrovsky , xen-devel@lists.xenproject.org, Russell King , Arnd Bergmann , linux-arm-kernel@lists.infradead.org, Catalin Marinas , Will Deacon , Guo Ren , linux-csky@vger.kernel.org, Thomas Bogendoerfer , linux-mips@vger.kernel.org, "James E. J. Bottomley" , Helge Deller , linux-parisc@vger.kernel.org, Paul Walmsley , Palmer Dabbelt , linux-riscv@lists.infradead.org, Mark Rutland , Sabin Rapan Subject: Re: [patch 00/37] cpu/hotplug, x86: Reworked parallel CPU bringup In-Reply-To: <8592a301-9933-1cad-bd61-8d97e7c7493b@molgen.mpg.de> References: <20230414225551.858160935@linutronix.de> <8247ce4d-15b7-03b2-0c9b-74f8cd6cad50@molgen.mpg.de> <87wn2a4la5.ffs@tglx> <87ttxd4qxz.ffs@tglx> <87r0sh4m7a.ffs@tglx> <8592a301-9933-1cad-bd61-8d97e7c7493b@molgen.mpg.de> Date: Wed, 19 Apr 2023 11:38:21 +0200 Message-ID: <87a5z443g2.ffs@tglx> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org Paul! On Tue, Apr 18 2023 at 22:10, Paul Menzel wrote: > Am 18.04.23 um 10:40 schrieb Thomas Gleixner: >> Can you please provide the output of cpuid? > > Of course. Here the top, and the whole output is attached. Thanks for the data. Can you please apply the debug patch below and provide the dmesg output? Just the line which is added by the patch is enough. You can boot with cpuhp.parallel=off so you don't have wait for 10 seconds. Thanks, tglx --- --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -814,6 +814,7 @@ static int wakeup_secondary_cpu_via_init unsigned long send_status = 0, accept_status = 0; int maxlvt, num_starts, j; + pr_info("Kicking AP alive: %d\n", phys_apicid); preempt_disable(); maxlvt = lapic_get_maxlvt();