From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B52F63502A9; Tue, 26 May 2026 19:38:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779824318; cv=none; b=RQCF/6qqxtNe15OQczmF/SrMxutU7VbU8IfVA9nNw8t++KD1gQjW5HZnY6BCAiC9nASDix+509Jpc5ceMyw+150rrYgDWKa88NxW0Vw21j8MqfR1cOoVY6oBJzrQ7iUANkufs+g6iyvNLqaC8nFVdmGNMvXg1O8FDHv9hAOQU40= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779824318; c=relaxed/simple; bh=CdYJ6KR1CDql6op/8GOtX7NEid5/rNSsu5HinRhlJz0=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=FMJPKLLpaYreUH4tefqSPu+Eue8HW0Lgjr7xQJLZUtFvpHSKJOiLSTwMRxRbxhab0qk3z2/2Y+awkHGhWEvOQ/Nz+exowFCY2QIZMoJyJUTGEtwX1eeaewlizrXSCWpbcgKkEj0AHGRpo2qOnbQljgitkaNoHOtv7ycY6GWbD1I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf05.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 1A2461C0252; Tue, 26 May 2026 19:38:35 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf05.hostedemail.com (Postfix) with ESMTPA id 421D420018; Tue, 26 May 2026 19:38:33 +0000 (UTC) Date: Tue, 26 May 2026 15:39:05 -0400 From: Steven Rostedt To: Li Pengfei Cc: mhiramat@kernel.org, linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org, cmllamas@google.com, zhangbo56@xiaomi.com, Pengfei Li Subject: Re: [RFC PATCH v3 0/3] trace: stack trace deduplication for ftrace ring buffer Message-ID: <20260526153905.093aff7c@gandalf.local.home> In-Reply-To: References: <20260514034916.2162517-1-lipengfei28@xiaomi.com> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: i67ccpnwu5hi8ghnrj15wjm3tjc6n6fo X-Rspamd-Server: rspamout04 X-Rspamd-Queue-Id: 421D420018 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX18eqGLafxeHNCocGVTpJ7gz91e6br6vH7w= X-HE-Tag: 1779824313-272225 X-HE-Meta: U2FsdGVkX1+7DyxMBWuTXOs+Jjrs5LgDO55IofuHUZRLlUm+ry4zo26DKsKoK4U8FcY9J0prjwv/lmjlQf+9ON4qjh/gnLZkUGkTJp8xVUIeuaIeoJfdb3ZqlUdVpA8HgFbmYGEOu75AJi9s42HPyu2da082NwwMaXBnPRSJvPx9VI0LM1YOqd8rG/7c/6BHEW7o3LAUFd3yolVwKsexuGn3hvxaPf0/cMfj7d9WwwpCqG94rtlxY4jX0JAC2IlAwpVpuO/YWCgjP4akpukM0/s4z6uNVDNwWtOoZvlYSiD/ZKyCKwj5NgOXc0R1kBzVRYEoJGviQRKqlAEH9YekD+1kznC8m1W+ckXHUHgwza92ak48kUDojCN+s6Gb813Sn5urT+GBJJ1rAI0v4BdcXldk+Iu2dv3IjgwwHkOYucZO/wlXKWnx7GTp1HF8KwmHDoktfPrONqg= Please DO NOT SEND new versions of a patch or patch series as a reply to the old one. It makes it extremely difficult for maintainers to manage the replies and patches. A new version should ALWAYS start a new email thread! On Tue, 26 May 2026 19:52:42 +0800 Li Pengfei wrote: > From: Pengfei Li > > Hi Masami, Steven, all, > > This is v3 of the ftrace stackmap series. It addresses the Sashiko > review on v2 [1] that Masami pointed out. > > [1] https://sashiko.dev/#/patchset/20260522104017.1668638-1-lipengfei28%40xiaomi.com > > The series adds stack trace deduplication to ftrace. When the > stacktrace option is enabled, the ring buffer stores a 4-byte > stack_id instead of a full kernel stack trace, while the full > stacks are exported via tracefs. > > Rebased onto v7.1-rc5 (e8c2f9fdadee) before sending. > > Changes since v2 > ================ Then you can use lore to add a link to the old version via the Message-ID of the old version. You can have the above as: Changes since v2: https://lore.kernel.org/all/20260522104017.1668638-1-lipengfei28@xiaomi.com/ -- Steve