From owner-freebsd-current@freebsd.org Fri Jan 6 19:24:03 2017 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 90FDFCA2D36 for ; Fri, 6 Jan 2017 19:24:03 +0000 (UTC) (envelope-from jonathan.robert.anderson@gmail.com) Received: from mail-qk0-x244.google.com (mail-qk0-x244.google.com [IPv6:2607:f8b0:400d:c09::244]) (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 47C7413DA for ; Fri, 6 Jan 2017 19:24:03 +0000 (UTC) (envelope-from jonathan.robert.anderson@gmail.com) Received: by mail-qk0-x244.google.com with SMTP id u25so63317872qki.2 for ; Fri, 06 Jan 2017 11:24:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=PthxM87wUOVO/n79Uki3N1n+Zx11WqTvvFO9+u+9TDg=; b=MwsJXJnXXUCc3G1T8p0oG5wb6+rKw2aAYpx4N+ehF2kcV4t/+AJYl1q6YU2iW+JV8Q bkNKJ13leErHPi3Cfh4jP/U/GCr8FPI0H08SKQzQfIIcJebqoVTApf6H8FW4iksm1+/T nQstNh7N+8zUg0OcLHZcQOA/tZpuE1dd80wqhb34AVGErpR6pU+2zq6OdAXtyESSixf+ OmYEdH42Gam581uIhjVWJXRbNRynlUXCl2MyiBoy5ZnXyyUhBeZ1d13EutJArdZz1+kL yZrZmvNAmQGthIhWhP4+FVlVwIFl9H9V1MdN+GJ2d4l33bcSNJguZHv48QeuWcBvhL9F jRtg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=PthxM87wUOVO/n79Uki3N1n+Zx11WqTvvFO9+u+9TDg=; b=SjSOAfnqZjBdGbLXlL0JyhV0mQVszqAP8m40J5RugYSHMtLQGJ37D7L7/mEdNdoVJe qc41O+nMStezj8sD7XWuIsTzcaJ1vFW5jbg5xUisP+wlWdMOCbViIob/pW4cFgYCbkUo 7gdAGYmzcREcc4CKZKAuq+oy7fap5NWUWvhVALqcseU+d/+BoEeNYv05a9fg47toQh0v bLlPwe/e2k/vkOME03CkAPK8xLQSHu7wbDNB6NUgm79CAv39Z6GQhsSu9hpRE0Y7UmvV Gmg80d7yo2LsT2DlK1SGrrsjTzhU8GqxPDFMc8L8NRaQYejKU1jvCNaGjgZgDwLnnA+B GlQw== X-Gm-Message-State: AIkVDXLqsmUcO3NXQLTlT4MiItIKNufpu3Krz/0Jjbm6fs6k50IcYXE1OV9yIFYe2XZrwQ== X-Received: by 10.55.19.142 with SMTP id 14mr77369855qkt.206.1483730642507; Fri, 06 Jan 2017 11:24:02 -0800 (PST) Received: from [172.31.128.104] ([38.105.99.189]) by smtp.gmail.com with ESMTPSA id z7sm61360qkz.7.2017.01.06.11.24.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 06 Jan 2017 11:24:01 -0800 (PST) From: "Jonathan Anderson" To: "Matthew Macy" Cc: "Pete Wright" , freebsd-current@freebsd.org Subject: Re: PQ_LAUNDRY: unexpected behaviour Date: Fri, 06 Jan 2017 14:24:00 -0500 Message-ID: <34ADDCA2-853D-4074-8185-B76370A794D2@gmail.com> In-Reply-To: <159752cc975.ae39473f72793.2628711433769346229@nextbsd.org> References: <1596d0f6d6d.1266583c3319360.3590554896761456790@nextbsd.org> <74A6C6D0-90A4-4DB2-8D89-5D2B1E495F88@FreeBSD.org> <15974c6426d.12945df5e62589.5931208946643250381@nextbsd.org> <1779f83b-687d-ac6f-587f-90bdc6d61c20@nomadlogic.org> <4778A6AC-97CF-4AE0-957A-7768964867D9@gmail.com> <159752cc975.ae39473f72793.2628711433769346229@nextbsd.org> MIME-Version: 1.0 Content-Type: text/plain; format=flowed Content-Transfer-Encoding: quoted-printable X-Mailer: MailMate (1.9.6r5319) X-Mailman-Approved-At: Fri, 06 Jan 2017 19:46:04 +0000 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.23 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: Fri, 06 Jan 2017 19:24:03 -0000 On 6 Jan 2017, at 14:06, Matthew Macy wrote: > kernel cores tend to be large (all of wired memory after all) and = > unless I have exactly the same kernel as you with the same sources at = > the same changeset, not useful. A backtrace is a good place to start. >> kgdb /boot/kernel/kernel /var/crash/vmcore.last > % bt > > -M Ok, here we are: #0 doadump (textdump=3D0) at pcpu.h:222 #1 0xffffffff82a445e7 in vt_kms_postswitch (arg=3D)= at = /usr/home/jon/freebsd/graphics/sys/modules/drm/drm/../../../dev/drm/linux= _fb.c:82 #2 0xffffffff808de76b in vt_window_switch (vw=3D0xffffffff81760ea8) at /usr/home/jon/freebsd/graphics/sys/dev/vt/vt_core.c:540 #3 0xffffffff808dc280 in vtterm_cngrab (tm=3D) at /usr/home/jon/freebsd/graphics/sys/dev/vt/vt_core.c:1465 #4 0xffffffff809f3e02 in cngrab () at = /usr/home/jon/freebsd/graphics/sys/kern/kern_cons.c:368 #5 0xffffffff80a4d27a in vpanic (fmt=3D0xffffffff80ff218f "Assertion %s = failed at %s:%d", ap=3D0xfffffe0233e6f5f0) at = /usr/home/jon/freebsd/graphics/sys/kern/kern_shutdown.c:765 #6 0xffffffff80a4d166 in kassert_panic (fmt=3D) at /usr/home/jon/freebsd/graphics/sys/kern/kern_shutdown.c:669 #7 0xffffffff80d2b93c in vm_fault_hold (map=3D0xfffff8010c9aa000, = vaddr=3D34369822720, fault_type=3D, fault_flags=3D0, m_hold=3D0x0) at /usr/home/jon/freebsd/graphics/sys/vm/vm_fault.c:389 #8 0xffffffff80d2a1b8 in vm_fault (map=3D0xfffff8010c9aa000, vaddr=3D, fault_type=3D2 '\002', fault_flags=3D) at /usr/home/jon/freebsd/graphics/sys/vm/vm_fault.c:474 #9 0xffffffff80ebb412 in trap_pfault (frame=3D0xfffffe0233e6f9c0, = usermode=3D1) at /usr/home/jon/freebsd/graphics/sys/amd64/amd64/trap.c:708 #10 0xffffffff80ebaba2 in trap (frame=3D0xfffffe0233e6f9c0) at /usr/home/jon/freebsd/graphics/sys/amd64/amd64/trap.c:326 #11 0xffffffff80e9b181 in calltrap () at /usr/home/jon/freebsd/graphics/sys/amd64/amd64/exception.S:236 #12 0x00000008022a3876 in ?? () It looks like the other core files have the same backtrace. Please let = me know if any other details would help... Jon -- jonathan.anderson@ieee.org