From nobody Thu Mar 19 16:53:29 2026 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fcBbp63ndz6VdYX for ; Thu, 19 Mar 2026 16:53:42 +0000 (UTC) (envelope-from nvass@gmx.com) Received: from mout.gmx.net (mout.gmx.net [212.227.17.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (3072 bits) client-digest SHA256) (Client CN "mout.gmx.net", Issuer "Telekom Security ServerID OV Class 2 CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fcBbp22DRz3glk for ; Thu, 19 Mar 2026 16:53:42 +0000 (UTC) (envelope-from nvass@gmx.com) Authentication-Results: mx1.freebsd.org; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.com; s=s31663417; t=1773939219; x=1774544019; i=nvass@gmx.com; bh=6xkaW85iilyk7Wn038KAGQBYCtPb/bHNLGNrRBskNG4=; h=X-UI-Sender-Class:Message-ID:Date:MIME-Version:Subject:To: References:From:In-Reply-To:Content-Type: Content-Transfer-Encoding:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=DiswFRJZlwnj4i+/yOepXOtAwek91RnFlLQHfL+WLDszVgntD5+48FFrOq53fuBN 8IGrBp80TTCzQRmODoy1TOZRRX/BNnUvV+onNXacyGAW7pa1rhvQiniLJcrdSFxAx SQMqmLGtdUQaldbf3+Q2nqahiRMiOO0IS4co9z2QXi6xJWgwzYAPkIsBEKJ3XbV0g uDFc7WBc9ZHRN5U0k9fuWzXGlgJXeeQBbLIDj++XHpzUb/4cyQWqhJfzNUsmjxMX8 KPvx6mAlliANUxzoYukMKY2BeqIKZL7Z9qx0SeTv/9rWZZk0vCMWK92A0ay8JOjEt Kwtq1MYolwddhIGaZA== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from client.hidden.invalid by mail.gmx.net (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1MgvvJ-1vMnT41gCL-00lePp; Thu, 19 Mar 2026 17:53:39 +0100 Message-ID: <1d1cc837-786c-40d4-8420-788c33b992a6@gmx.com> Date: Thu, 19 Mar 2026 18:53:29 +0200 List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: guest kernel fails to start when cpuset is used To: Miroslav Lachman <000.fbsd@quip.cz>, freebsd-current@FreeBSD.org References: <882fe6bb-3870-4ce7-bd5a-7f50a9ae5774@gmx.com> <05fbcbb9-be80-4ea4-818c-1e343e1f9305@quip.cz> Content-Language: en-US, el From: Nikos Vassiliadis In-Reply-To: <05fbcbb9-be80-4ea4-818c-1e343e1f9305@quip.cz> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:k2SRAJIMjMyHEhq5OvsYDVo3aUKZvXy4WClhAvLhoCSt0Kyk/Ob kqG9cMXlkSuMZzko/yAt94ztAIHkrUO7EZiLH1KMLb2egziR15xqduE7Q8EaarCPJCFcqUZ 6AoZAzkiOobCohS1Z7wMZo86c/0tPIvec9mkbsB/V9VV5CiRXCv5S9kpN7BmPiuit1is+7b 90eT+WLKDliWi+2cYzZkA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:kewR9AW26EM=;PUW4ChH0W9u4TM8vxBLJOUntJVR 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13:21, Miroslav Lachman wrote: > On 19/03/2026 11:39, Nikos Vassiliadis wrote: >> Hi, >> >> I was trying to limit a 12-core VM with cpuset. So I limited it to 0-5 >> cores and the kernel seems to fail to start. >=20 > [..] >=20 >> ACPI APIC Table: >> FreeBSD/SMP: Multiprocessor System Detected: 12 CPUs >> FreeBSD/SMP: 12 package(s) x 1 core(s) >> random: unblocking device. >> ioapic0 irqs 0-31 >> Launching APs: 2 8 6 11 10 9 3 4 7 5 1 >> >> And it stays there spinning. >> >> Any ideas? >=20 > I don't think this is a good idea. Why not use -c a -p options for bhyve= ? > -c > -p vcpu:hostcpu Pin guest's virtual CPU vcpu to hostcpu I already am. And while I do not know whether is a good or bad idea, I was kind of surprised that it crashed...