From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1ZMe2F-0001wd-Cn for mharc-qemu-trivial@gnu.org; Tue, 04 Aug 2015 11:21:47 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50248) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZMe28-0001oD-3a for qemu-trivial@nongnu.org; Tue, 04 Aug 2015 11:21:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZMe27-0004Sv-3Q for qemu-trivial@nongnu.org; Tue, 04 Aug 2015 11:21:40 -0400 Received: from mail-qk0-x233.google.com ([2607:f8b0:400d:c09::233]:36422) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZMe21-0004P4-Oe; Tue, 04 Aug 2015 11:21:34 -0400 Received: by qkdv3 with SMTP id v3so4407804qkd.3; Tue, 04 Aug 2015 08:21:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-type:content-transfer-encoding; bh=ku2HMZsZzIiJuHtoBM3yYxqP60n3R+BQDH7sf0sVExc=; b=pHFDraGdq/rvn1Ddu9JEZnRU+OIAmWdr7CHUHK/F74Lu+qCbHX2orYkyHmjTVK9Ub6 JlMaPkSD43BEZtJCz0iv+hJTejyHw4wwS8fdPgk9mkK1INLDllIsomX7c/xaz2glCZQh gAr8jQ8NWBQhH09SP2orct8XCy757qOHYwCayT0X6jHWUqk0LCjzB5zGgTXjiodYYbqt +3jLYlNUzwPCW8F4To9RMD/V6qBiT4kYAVJw3BP6byv0b4x+Af5XEE+t7eLL3Btqszq1 IRdzRVvmLEoQ/e7Un0NYUQDb7eFSAG3fpZwCrnGOJDkOxV1iesijypJwEZWnbyO0Lqx1 uj7Q== X-Received: by 10.55.33.162 with SMTP id f34mr7223310qki.25.1438701693445; Tue, 04 Aug 2015 08:21:33 -0700 (PDT) Received: from anchor.twiddle.net (50-194-63-110-static.hfc.comcastbusiness.net. [50.194.63.110]) by smtp.googlemail.com with ESMTPSA id d6sm639970qgf.0.2015.08.04.08.21.31 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 04 Aug 2015 08:21:32 -0700 (PDT) Sender: Richard Henderson To: Peter Maydell , =?UTF-8?Q?Alex_Benn=c3=a9e?= References: <1438593291-27109-1-git-send-email-alex.bennee@linaro.org> <1438593291-27109-4-git-send-email-alex.bennee@linaro.org> <20150804121616.GA8192@aurel32.net> <87h9ofks0j.fsf@linaro.org> From: Richard Henderson Message-ID: <55C0D879.90404@twiddle.net> Date: Tue, 4 Aug 2015 08:21:29 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2607:f8b0:400d:c09::233 Cc: QEMU Trivial , Paolo Bonzini , Peter Crosthwaite , QEMU Developers Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH v4 03/11] qemu-log: correct help text for -d cpu X-BeenThere: qemu-trivial@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Aug 2015 15:21:46 -0000 On 08/04/2015 08:15 AM, Peter Maydell wrote: > On 4 August 2015 at 16:11, Alex Bennée wrote: >> Aurelien Jarno writes: >>> On 2015-08-03 10:14, Alex Bennée wrote: >>> In practice this is not true for linked TB. Should we also disable TB >>> linking when this option is enabled? >> >> Good question. I suspect yes because if you've gone to level of wanting >> exec tracing you'll probably get confused by the chaining. Of course it >> will run a lot slower then. > > Unless the bug you were trying to track down is caused by the exec > chaining, of course... But yes, I think we get more people wanting > chaining to be disableable. > > Not sure we want to tie it to the 'cpu' debug option, though -- it > applies just as much to 'exec'. Does it make more sense to have a 'nochain' debug option, and not tie it to either 'cpu' or 'exec'? It might be occasionally useful on its own, simply to determine if a bug does exist in the exec chaining. r~