From owner-svn-src-head@freebsd.org Wed Jan 31 15:31:58 2018 Return-Path: Delivered-To: svn-src-head@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 A45E3ED1B13; Wed, 31 Jan 2018 15:31:58 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-io0-x22a.google.com (mail-io0-x22a.google.com [IPv6:2607:f8b0:4001:c06::22a]) (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 343E668E6B; Wed, 31 Jan 2018 15:31:58 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mail-io0-x22a.google.com with SMTP id l17so15618539ioc.3; Wed, 31 Jan 2018 07:31:58 -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=PzaRmh/ixucfF8aaT7iS+qb0nnxgenqcDs5/LKr14CQ=; b=dppO1OSZkh3kvLOtrIk6sHnaSG+gH7tm6FMSQtKdukgEXH1Z2i+mUjJaPKhJcZI7Cx EiENEHH4lkHt+exmfIi4NDIWiDrNhWu8gh+f7pEg++c4041SyavETYq6guHIjP0pokwx sNqnThekHJ9GfvTp6EM+I69YoIHhyarlgXwayMRSWIBt6fIl/rkabBWPUtnJ9YNcoyw7 9r6GDpmiSKfSDgtdgFOjpztMJlgLwDaVx2k9NIg1MHai/sux40G/VQooqmJF6KmuYK6F 1eAlUnVZkUfMXQQJ1GC2gisInLVk5QKqGBOxPKcpBOfDoCtf3lWlLEuBPsDvy5ynwXiG hy5Q== 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=PzaRmh/ixucfF8aaT7iS+qb0nnxgenqcDs5/LKr14CQ=; b=UhpLc9bCWA+idvj1CGDAmscUPHqQoSkVBEi555eNb0djFWFv1lYw6l21CO35so6DZ0 qTiXcdZL7GZMZbkE1rJ/kQFjLZ/jZmSzyhxDddNBtFIStBh6uTAtFXUNXn6e9E6ShpBX VPiUBOcjeouHnJoH8yG5MoOkczfogMgfj2n1Soy8EMAWjH1527oV0ULL0mdBB8LmaL1L +PEZKjtAwvEwmheV+Bm/5D5bt57N/sKUvccw3msoUVaDhJ+uicuo6KSbiQs3j2ufDJHo tfp43ndDfkZyq63E4TgNeCL+9LItlf41kitrQU+XgQ5j5YNayU0ibpMa3Huj/7wyjw+p yySQ== X-Gm-Message-State: AKwxytfJFhC6a86nlFmSkIVKpJcRSVsOQFA/+ydCR0lxdhzTXhUKcgz5 lfE5jU9a4xsH/1wjbnxVuY96TloMOo4pp5b6rVkKaw== X-Google-Smtp-Source: AH8x225h/J4Y/4nlv5poHm1QlpUeKBGAX8VI6rSpKu1ZTSZ0jAt1qdDiY4+QC0d4B7bfSoRTIfGSz4gdtr8QX+7Es+M= X-Received: by 10.107.107.1 with SMTP id g1mr33693515ioc.63.1517412717455; Wed, 31 Jan 2018 07:31:57 -0800 (PST) MIME-Version: 1.0 Sender: carpeddiem@gmail.com Received: by 10.107.152.9 with HTTP; Wed, 31 Jan 2018 07:31:36 -0800 (PST) In-Reply-To: <3195814.6PcFLP86qD@ralph.baldwin.cx> References: <201801302329.w0UNTRHn080138@repo.freebsd.org> <3195814.6PcFLP86qD@ralph.baldwin.cx> From: Ed Maste Date: Wed, 31 Jan 2018 10:31:36 -0500 X-Google-Sender-Auth: wqJm6-nRg95ZhmoKOt5LQT7jdtI Message-ID: Subject: Re: svn commit: r328610 - head/sys/amd64/amd64 To: John Baldwin , Wojciech Macek Cc: src-committers , svn-src-all@freebsd.org, svn-src-head@freebsd.org Content-Type: text/plain; charset="UTF-8" X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 Jan 2018 15:31:58 -0000 On 30 January 2018 at 21:01, John Baldwin wrote: > On Tuesday, January 30, 2018 11:29:27 PM John Baldwin wrote: >> Author: jhb >> Date: Tue Jan 30 23:29:27 2018 >> New Revision: 328610 >> URL: https://svnweb.freebsd.org/changeset/base/328610 >> >> Log: >> Ensure 'name' is not NULL before passing to strcmp(). >> >> This avoids a nested page fault when obtaining a stack trace in DDB if >> the address from the first frame does not resolve to a known symbol. >> >> MFC after: 1 week >> Sponsored by: Chelsio Communications > > This appears to be fallout from lld? After fixing this, the stack trace > for my next panic shows no symbols for functions in the kernel, only > functions in kernel modules: It's fallout from loader changes in r328536. I reverted r328536 (and r328603) locally and stack traces are fixed.