From owner-freebsd-current@freebsd.org Sat Jan 27 02:07:52 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 49F9DED7882 for ; Sat, 27 Jan 2018 02:07:52 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id D4BED70CB7 for ; Sat, 27 Jan 2018 02:07:51 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mailman.ysv.freebsd.org (Postfix) id 8EEE2ED787B; Sat, 27 Jan 2018 02:07:51 +0000 (UTC) Delivered-To: current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7C706ED7878 for ; Sat, 27 Jan 2018 02:07:51 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-it0-x233.google.com (mail-it0-x233.google.com [IPv6:2607:f8b0:4001:c0b::233]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 0F36170CB5 for ; Sat, 27 Jan 2018 02:07:51 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mail-it0-x233.google.com with SMTP id q8so3739804itb.2 for ; Fri, 26 Jan 2018 18:07:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=ItdssmlIdB2obolr13ToStxKBS8ZBq0mvqrT5PPLmps=; b=kGHCzg/w+9bWU37UjGb17s9ZjRr+ch3/hcz4Z4ma2MVdQS1+N+WdqzIBzCjmJq/fo4 q5EdZ3e6WirYSWb1KumoU0wV/MG8fYkGJRj8xbaT0DFrE9RYpjRhGyeSRRcvUlr/SPVL L93pGw0zIKO1CDb9hu7mU2QayTIZKelm3Lnt5h8aRiGSkNysKcO+CYayJmSanWevx4nJ TnuF1j70qqpFvEJGoOETVzd56jWElOBwI+m1LtLM5JNQW6KFlXNugjR8uECErhIR4OMu Ut/uiWTewYBse4hovo6gCOnnVi6jMr7Jhse0Qdbl+OwkDxekfeJk7NdcGnepkLtquLw5 ss4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=ItdssmlIdB2obolr13ToStxKBS8ZBq0mvqrT5PPLmps=; b=NZZsbhvOD3MitPEIM2Q34ywDmcdXddPmO2PCLOFxQ9UAmjDH1Z3pq9JhFAvSbN8oqP ewWz6VxECxtUvM0Pp+QLOCqYL3dF+JJzXL65aFO3uvnK/36LdziqGGFmc16ei13noEw7 59lybt2cyNaXtICtQsY4R0npvK/vMUzMf0u237wahxeqlmG6Lzw6RqJIarmHHctUxp8B tJ4xrjUa78RnjxbSthp6YIjq/I/c7BA+l0b4dU/WLHgpFaVV5B1iFYCe0zZL0ugLEorH 2z032elNP+oJA8JQb6awu+k2rh43ehq6PWcllhnpyiKPmiTZesPOaoiEOh5xwk+DVlIW nEsw== X-Gm-Message-State: AKwxytdlJukMsl1VZ3v4b0sn7cjoKI/GAC+cXk/SjymZOiHOdxibm0Sb VGKhFH1dB2NaMrcu1L2T32bROq8Qmp4l1QH12zs= X-Google-Smtp-Source: AH8x225Ln0nPhqAimPJ+s8i0flpLL3SAz2+8JMp1DmOOKspzzB8KHsDYn5K2IwJOrkjkVH+BZfh1GuRayTgk46ywHWU= X-Received: by 10.36.172.45 with SMTP id s45mr20482108ite.69.1517018870450; Fri, 26 Jan 2018 18:07:50 -0800 (PST) MIME-Version: 1.0 Sender: carpeddiem@gmail.com Received: by 10.107.152.9 with HTTP; Fri, 26 Jan 2018 18:07:29 -0800 (PST) In-Reply-To: References: <9e533d36-f2ee-58fc-d629-eed7d70645b4@capeaugusta.com> <20180125221312.GU55707@kib.kiev.ua> From: Ed Maste Date: Fri, 26 Jan 2018 21:07:29 -0500 X-Google-Sender-Auth: 9YrukM5DXJpQOnjpICKL4bcW8p0 Message-ID: Subject: Re: Insta-reset-bootloop with r328166 and vm.pmap.pcid_enabled=1 To: Ian FREISLICH Cc: Konstantin Belousov , current Content-Type: text/plain; charset="UTF-8" X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 27 Jan 2018 02:07:52 -0000 On 25 January 2018 at 17:21, Ian FREISLICH wrote: >> Yes, this is how it is currently behaves. >> PCID can be used to optimize PTI, see https://reviews.freebsd.org/D13985. >> It is used for very differrent algorithm when PTI=1, comparing with PTI=0. > > Maybe there should be an "interlock" on these knobs, although judging > from the number of reports I'm the only that shot my foot. Sorry for the trouble. Once D13985 is committed these knobs can both be set to 1 (and in fact that will be the default configuration on Intel systems). I suspect the commit will happen soon and until then it's just a temporary bump inherent in running -current.