From owner-freebsd-current@freebsd.org Sun Mar 6 14:20:45 2016 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 6BB41A95B2F for ; Sun, 6 Mar 2016 14:20:45 +0000 (UTC) (envelope-from ler@lerctr.org) Received: from thebighonker.lerctr.org (thebighonker.lerctr.org [IPv6:2001:470:1f0f:3ad:223:7dff:fe9e:6e8a]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "thebighonker.lerctr.org", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4C01E95E; Sun, 6 Mar 2016 14:20:45 +0000 (UTC) (envelope-from ler@lerctr.org) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lerctr.org; s=lerami; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date; bh=PoB9jM6JBzIE6UdDW/UI25DB/uogVcn4sCTXsmtRkwM=; b=O 2iKyUSBSDpSXkP4f6WA8MvqtnQphKJuF683iTIgI8YNrq7ixEh2TkTGSPlCb8rXiOwddu2mUfmDfd 8W3XrWosf0Wq7BaLrTkCfVo+/Q+XXMA61fxqUnIzuQuDzOUPKN+xBcKr9cwsOdcULtYCefhV0ZHvR L9rHTXJ4LjBsMsk0=; Received: from [2605:6000:ec17:203:226:b6ff:fe05:a01d] (port=27570 helo=trivet.lerctr.org) by thebighonker.lerctr.org with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.86_2 (FreeBSD)) (envelope-from ) id 1acZY4-0009kR-BO; Sun, 06 Mar 2016 08:20:44 -0600 Date: Sun, 6 Mar 2016 08:20:32 -0600 From: Larry Rosenman To: Dimitry Andric Cc: FreeBSD CURRENT Subject: Re: HEADS UP: clang/llvm/lldb/compiler-rt 3.8.0 imported Message-ID: <20160306142032.GA4063@trivet.lerctr.org> Mail-Followup-To: Dimitry Andric , FreeBSD CURRENT References: <06A7CAA8-1F51-4A86-97D1-F0DA938C2BC4@FreeBSD.org> <0CAC6D2A-D16B-4BD5-90F0-3A1E2F1FC375@FreeBSD.org> <613F619A-DE9E-4030-BF11-CE30465B9538@FreeBSD.org> <232E493E-9B22-4D1E-A1C8-619B573C56E1@FreeBSD.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <232E493E-9B22-4D1E-A1C8-619B573C56E1@FreeBSD.org> User-Agent: Mutt/1.5.24 (2015-08-30) X-Spam-Score: -1.0 (-) X-LERCTR-Spam-Score: -1.0 (-) X-Spam-Report: SpamScore (-1.0/5.0) ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 X-LERCTR-Spam-Report: SpamScore (-1.0/5.0) ALL_TRUSTED=-1, SHORTCIRCUIT=-0.0001 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.21 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: Sun, 06 Mar 2016 14:20:45 -0000 On Sun, Mar 06, 2016 at 03:15:10PM +0100, Dimitry Andric wrote: > On 06 Mar 2016, at 06:20, Larry Rosenman wrote: > > > > On 2016-03-05 18:46, Dimitry Andric wrote: > >> On 06 Mar 2016, at 00:30, Dimitry Andric wrote: > >>> On 05 Mar 2016, at 22:32, Dimitry Andric wrote: > >>>> I imported the (tentative) 3.8.0 release of clang, llvm, lldb and > >>>> compiler-rt into head, in r296417. The upstream release is going to be > >>>> very soon now, but I do not expect any changes anymore. > >>>> This was tested with make universe, and a few exp-runs, but there is > >>>> always a chance that you might run into something unexpected, either > >>>> with the base system or ports. In such cases, please file bugs, and > >>>> make sure you note somewhere in the description that it is related to > >>>> this import. > >>> Please hold off upgrading for now, if you are on amd64, and loading the > >>> aesni.ko module. It appears that loading this module can cause the > >>> kernel ELF linker to panic, but it is not yet clear why. This is being > >>> tracked in PR207729 [1]. > >> It should be safe again after r296419. Thanks to Kostik Belousov for > >> the quick fix. (Clang 3.8.0 generates a different type for unwind > >> sections on amd64, and this was unexpected in the kernel linker.) > >> -Dimitry > >> [1] https://svnweb.freebsd.org/changeset/base/296419 > > I'm getting a crash at startup (mi_startup) with a clang 3.8.0 kernel. > > > > Picture at: > > http://www.lerctr.org/~ler/FreeBSD/20160305_225532.jpg > > It's pretty hard to make out, but it looks like it is panic'ing in > link_elf_reloc_local(). That should have been fixed with r296419, but > maybe there is yet another edge case that wasn't fixed. Do you have a > crash dump and/or a backtrace? Which modules are you preloading? > > -Dimitry > loader,conf: kern.msgbuf_clear="1" kern.geom.label.disk_ident.enable="0" kern.geom.label.gptid.enable="0" zfs_load="YES" ichsmb_load="YES" hwpmc_load="YES" aesni_load="YES" cryptodev_load="YES" dtraceall_load="YES" cpuctl_load="YES" cuse_load="YES" coretemp_load="YES" #hw.usb.quirk.0="0x0bda 0x0129 0x3960 0x3960 UQ_MSC_FORCE_WIRE_BBB,UQ_MSC_FORCE_PROTO_SCSI" #hw.usb.umass.debug="-1" I'll see if I can get a better pic with a backtrace. This crash is WAY early, so no dump :( acpi_dsdt_load="YES" # DSDT Overriding acpi_dsdt_name="/boot/dsdt.aml" #hw.psm.synaptics_support="1" -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: ler@lerctr.org US Mail: 7011 W Parmer Ln, Apt 1115, Austin, TX 78729-6961