Received: by 2002:ab2:4a89:0:b0:1f4:a8b6:6e69 with SMTP id w9csp149015lqj; Wed, 10 Apr 2024 06:48:57 -0700 (PDT) X-Forwarded-Encrypted: i=3; AJvYcCWA4GXhbd6mtrxva4ksELYlME0I7ysNkUKAb4CxzieyaMB1Gf/R9kFMep07Hr+9ldPuEgCrvb0qMHL8u2L98ac08LCQJ1aPI8tERb+x2Q== X-Google-Smtp-Source: AGHT+IHCYKXRjvOkk6FtV/wcxQGK+sou58sdZxYNuyd2KNe8jo+f4P59eroz55H5e1BpKpqP/s1k X-Received: by 2002:a05:6e02:13ad:b0:36a:190f:1932 with SMTP id h13-20020a056e0213ad00b0036a190f1932mr24ilo.23.1712756936951; Wed, 10 Apr 2024 06:48:56 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1712756936; cv=pass; d=google.com; s=arc-20160816; b=Kft8mohhmbmctvIJzJV3E/E5/ALbRgZrdoUIdl2IJnHqQLgqE5Vc9SxjwNJdanhUZ0 rzBv4rq9hVnrlaoZs0ATJgjGTc24tmIOmzK9BciJcOOuhC9I1dVuAx880+xz3lN8cmtB fT5Yap7bfvAPSFvsuHsmpQLCDNs33WO63hBhA76DkvcENDiNHt5YN7MDVBDGoqunTD6U xHivdOvjP/4c7hLSFc06JgOLQUW1XDFL4ftC9weoUX5dIqcpDnjQ2g+aK00Uja5sxLRx 7FVvXdajuIeMOzStuVklWSM62nI6qJVuMCwfO2r4BwVVMvAtrrM4RN1DvQTRoH2WuWCz 5JGg== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:list-unsubscribe:list-subscribe:list-id:precedence :message-id:date:references:in-reply-to:subject:cc:to:dkim-signature :dkim-signature:from; bh=7KWwszC1gDIImnfxbJ4YyzLnz2jQUcsGLC9WpM8+8rY=; fh=7OcVWvWjHEfb3fGAl107z9MoxsNz6LVJLQG31sv8Muk=; b=08C71H7q3ppYaad2pro1V+oEdsYgHMffn3eHUnMyDkqNA821U97ySb/3WBRW1ry827 Bu/L9NvZ1OCEebg0/1h3kmhW6HEwrav76RdqDeklsMy6x/2cJAdAvrFiEJvm5+TBIGSX UVCeyHjDgqq49EqvTgxzl/Yx/UOSd3KrknU5d0vnDgTwomm9wavaVgGjhhHxFEJmVWyK rHTQPPYaLXA9+OHqKvOTMrpJd3FZsIW+H20idnvnJp5C2EBMYa261BU/SFYhAY4FZLyb uotY3nIgJmrd7svV/Ntc3LO10cKu4w3WUG5ZVEhDL6xgW0rK//XNjNarGtN1DWHZ0vit 5LkQ==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=2IqzZRrh; dkim=neutral (no key) header.i=@linutronix.de header.s=2020e; arc=pass (i=1 spf=pass spfdomain=linutronix.de dkim=pass dkdomain=linutronix.de dmarc=pass fromdomain=linutronix.de); spf=pass (google.com: domain of linux-kernel+bounces-138643-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-138643-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Return-Path: Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. [139.178.88.99]) by mx.google.com with ESMTPS id z194-20020a6333cb000000b005dbd9c28c62si10451967pgz.539.2024.04.10.06.48.56 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Apr 2024 06:48:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-138643-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=2IqzZRrh; dkim=neutral (no key) header.i=@linutronix.de header.s=2020e; arc=pass (i=1 spf=pass spfdomain=linutronix.de dkim=pass dkdomain=linutronix.de dmarc=pass fromdomain=linutronix.de); spf=pass (google.com: domain of linux-kernel+bounces-138643-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-138643-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 143B228188E for ; Wed, 10 Apr 2024 13:46:39 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5E00D15EFD8; Wed, 10 Apr 2024 13:38:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="2IqzZRrh"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="dFsRKC0T" Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1EA632AF16 for ; Wed, 10 Apr 2024 13:38:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712756293; cv=none; b=aHPkoOCJNma7AjnusZco4SGdmiqGwz+QjXYbjyku0qDNtbq948qigNYZW/vGukH7r8meakc52E2u1x9zLVs24sI4uM2uW362qxpOni3qSSFB1tSPDTNZ6GA3oaaEFWK44d/58WiVxcz/7wNU8osqBfX3SPIfCxt00LB1eO3a/PI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712756293; c=relaxed/simple; bh=G/Cy5WPY96g4Vl+cNSJrgwM1kif9xH6SaNAxGLyC81I=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=ieM3vWdDajCTbMubhorOL7N7ymS7qgwDnx+IVqXoINut53pPVI+bfbjv5NfVZM103HIoLiyiHFrPiQ3CHbOhqHLhc05QWbSmqCf3EmyOsVu48yvhqVeRjilhPVNSxsHyZ5MmHH7NfMlYjfyyUSeK2qlqqBqXKt8zTv9GnNHu0gg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=2IqzZRrh; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=dFsRKC0T; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1712756290; 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=7KWwszC1gDIImnfxbJ4YyzLnz2jQUcsGLC9WpM8+8rY=; b=2IqzZRrhZcPb5nY6Q+9wyV0sCb+QNwaSj4CHOMo4dEH3vuM2qV7MzFMxf3HM+F9NqC9r9e U70ne/3u16q+roLOmZyErczNiVYIyRjchWVsbiEoE1PiOgA3BWjO/keUaYL7vOxHbxa7+V pl6KBIonVNu/tktRp8iRzgE8R2JAqZBWn4cfL/4CjoC0FZDdgJOBJXXSiqIaI7zcgnotlo 1VBfhxOX086hviMwZDVtAMGh9c7LCFJ4xG5TRVNWZPb5jG5+MWNu6kh1VAeAUNkVVxg31+ 7A7IWxTPJstXib5rLTpXN/p/5D83OTYll6aQtQUQyv50w9J5H8npoxdfm9KdkQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1712756290; 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=7KWwszC1gDIImnfxbJ4YyzLnz2jQUcsGLC9WpM8+8rY=; b=dFsRKC0TzEd4cIVGDe0cKMC7uvNHbBGWU3gVxmOGF8OhejSVRne0O/QO3U7oA4bpwqq6sj lNGeKAQjrhgOxzAA== To: "Linux regression tracking (Thorsten Leemhuis)" , Linux kernel regressions list Cc: LKML , xiangfeix.ma@intel.com Subject: Re: Call Trace when adding vCPU to guest In-Reply-To: References: Date: Wed, 10 Apr 2024 15:38:09 +0200 Message-ID: <87bk6h49tq.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Wed, Apr 10 2024 at 09:34, Linux regression tracking (Thorsten Leemhuis) wrote: > Hi, Thorsten here, the Linux kernel's regression tracker. > > I noticed a report about a regression in bugzilla.kernel.org. > > Thomas, I wonder if it's caused by your topology changes. But it's just > a wild guess and I might be totally wrong there, so feel free to ignore > this mail. I already asked for a bit more log output and a bisection in > the ticket. > > To quote from https://bugzilla.kernel.org/show_bug.cgi?id=218698 > >> Environment: >> >> Host OS: CentOS 9 >> Host kernel: 6.9.0-rc1 >> KVM commit: 9bc60f73 >> Qemu commit: e5c6528d >> Guest kernel: 6.9-rc2 >> Guest commit: 39cd87c4eb2b893354f3b850f916353f2658ae6f >> Guest repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> >> >> Bug detail description: >> >> When hot adding a vCPU to the guest, the guest happens Call Trace and reboot. https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/urgent&id=a9025cd1c673a8d6eefc79d911075b8b452eba8f It'll be in rc4 Thanks, tglx