From owner-freebsd-current@freebsd.org Fri Feb 22 03:39:30 2019 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 5225014FD792 for ; Fri, 22 Feb 2019 03:39:30 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.95.76.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "troutmask", Issuer "troutmask" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 45BFC7710F for ; Fri, 22 Feb 2019 03:39:27 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (localhost [127.0.0.1]) by troutmask.apl.washington.edu (8.15.2/8.15.2) with ESMTPS id x1M3dPMD025314 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Thu, 21 Feb 2019 19:39:25 -0800 (PST) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.15.2/8.15.2/Submit) id x1M3dPgI025313 for freebsd-current@freebsd.org; Thu, 21 Feb 2019 19:39:25 -0800 (PST) (envelope-from sgk) Date: Thu, 21 Feb 2019 19:39:25 -0800 From: Steve Kargl To: freebsd-current@freebsd.org Subject: r343567 aka PAE vs non-PAE merge breaks i386 freebsd Message-ID: <20190222033924.GA25285@troutmask.apl.washington.edu> Reply-To: sgk@troutmask.apl.washington.edu MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.11.2 (2019-01-07) X-Rspamd-Queue-Id: 45BFC7710F X-Spamd-Bar: ++ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [2.61 / 15.00]; ARC_NA(0.00)[]; HAS_REPLYTO(0.00)[sgk@troutmask.apl.washington.edu]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM_MEDIUM(0.74)[0.743,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; TO_DN_NONE(0.00)[]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_THREE(0.00)[3]; RCVD_TLS_LAST(0.00)[]; NEURAL_SPAM_SHORT(0.83)[0.829,0]; RCVD_IN_DNSWL_MED(-0.20)[21.76.95.128.list.dnswl.org : 127.0.11.2]; MX_GOOD(-0.01)[cached: troutmask.apl.washington.edu]; DMARC_NA(0.00)[washington.edu]; NEURAL_SPAM_LONG(0.28)[0.284,0]; R_SPF_NA(0.00)[]; REPLYTO_ADDR_EQ_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:73, ipnet:128.95.0.0/16, country:US]; MID_RHS_MATCH_FROM(0.00)[]; IP_SCORE(0.07)[ip: (0.13), ipnet: 128.95.0.0/16(0.18), asn: 73(0.09), country: US(-0.07)] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 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, 22 Feb 2019 03:39:30 -0000 r343567 merges the PAE vs non-PAE pmap headers for i386 freebsd. After bisection and dealing with the drm-legacy-kmod fallout, I bisected /usr/src to r343567. Building world and a GENERIC kernel and the minimum set of ports to start Xorg on my Dell Latitude D530 laptop, results in a black screen of death and a locked up laptop (no keyboard, mouse, or video). A comparison of /etc/log/Xorg.0.log for r343566 (Xorg loads and functions) and r353467 (Xorg black screen of death) shows that /boot/modules/i915kms.ko loads correctly as the log files are identical. Comparing dmesg for r343566 to r343567 shows the following --- dmesg.343566 2019-02-20 08:13:07.727202000 -0800 +++ dmesg.343567 2019-02-21 19:02:24.469562000 -0800 @@ -3,11 +3,11 @@ Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. -FreeBSD 13.0-CURRENT r343566 GENERIC i386 +FreeBSD 13.0-CURRENT r343567 GENERIC i386 FreeBSD clang version 7.0.1 (tags/RELEASE_701/final 349250) (based on LLVM 7.0.1) WARNING: WITNESS option enabled, expect reduced performance. VT(vga): resolution 640x480 -CPU: Intel(R) Core(TM)2 Duo CPU T7250 @ 2.00GHz (1995.05-MHz 686-class CPU) +CPU: Intel(R) Core(TM)2 Duo CPU T7250 @ 2.00GHz (1995.04-MHz 686-class CPU) Origin="GenuineIntel" Id=0x6fd Family=0x6 Model=0xf Stepping=13 Features=0xbfebfbff Features2=0xe3bd @@ -16,7 +16,7 @@ VT-x: (disabled in BIOS) HLT,PAUSE TSC: P-state invariant, performance statistics real memory = 4294967296 (4096 MB) -avail memory = 3639914496 (3471 MB) +avail memory = 4154175488 (3961 MB) Somehow the r343567 kernel found an addition 490 MB of memory, which leads me to believe the after loading i915kms.ko there is some serious memory stomping issues. I willing to do whatever is necessary to fix this issue (shorter of mailing the laptop to someone). Is it possible to revert r343567 and move forward? -- Steve