From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.lttng.org (lists.lttng.org [167.114.26.123]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0E69FC43334 for ; Thu, 23 Jun 2022 09:09:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lists.lttng.org; s=default; t=1655975353; bh=et946XcIkvOPyrTWtSZ5MZEbzgo7G7lKVls5U3fP46M=; h=Date:To:Cc:References:In-Reply-To:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=WXTnYtsjDtpAnz8Pu1tVsit5k9h1OzuIm7lALmav1U/OSSfpVKOS30Z1KkhM8hX7A 2RtMkP0tdicAzbyy0fvYm+nI7eqTU0IPBjjXwjc/hDbBhH8kqVHvzrnZNjDd0xnNF0 eulQDyGhj++JnKj9tVDT6N+fUn7pjRUEmktXh3jUqY6+Y/4hAYQjqqMC83diPnazoQ CxDoEFmIRZsAevmhdBhDUmRa68CC/HeBTxQuT64VDnru4lAm/WNKEhnxH3NcudB9PK /G6BDiAV4rrm0skFjD4n4pJ6yG4L6VbZ8aADjB6eFFcvcQuXZy/qe9z5cKTzt9GEeG +5gKC/25dLXLA== Received: from lists-lttng01.efficios.com (localhost [IPv6:::1]) by lists.lttng.org (Postfix) with ESMTP id 4LTDvs207BzDjD; Thu, 23 Jun 2022 05:09:13 -0400 (EDT) Received: from smtpbgau2.qq.com (smtpbgau2.qq.com [54.206.34.216]) by lists.lttng.org (Postfix) with ESMTPS id 4LTDvp12jTzDw4 for ; Thu, 23 Jun 2022 05:09:09 -0400 (EDT) X-QQ-mid: bizesmtp74t1655975336tesqyonf Received: from localhost.localdomain ( [116.24.154.153]) by bizesmtp.qq.com (ESMTP) with id ; Thu, 23 Jun 2022 17:08:55 +0800 (CST) X-QQ-SSF: 01400000002000B0G000B00A0000000 X-QQ-FEAT: HvoQuNr4nUojWbiLny9PE8AtlY1uydGBqeDEVn+2h47S31D8s2aBqADgeszpe TE+JdDzjvy414Ih4FWiHYvoFiTFInqFe3482TkCFnFIQgmuw35M3yVVn+CosVh1o/Q1FCMD GuYILBtQ/W3NeHAhRRVmt2/rW+xqI4RBUBUdAr+MzIDZJwAYwJKedCCtX/SjWDxBNiV7MxW sPP27licVMHlxppqyzWO+eg/8Q6IacCue2byt9JjmJMLNyiLMH7fa/Zq2QH/9ts40Khrhg/ hjpbaDEp6ZwfxTTMMaVUdFQostpZF0UR2fdYYXCs/ZVhgT4FMSEli4e9twcwrgFvXMhJP50 gPG2/5P0yRfpvZK4EjUui8XFYWqzQ== X-QQ-GoodBg: 2 Date: Thu, 23 Jun 2022 05:08:52 -0400 To: Mathieu Desnoyers Cc: lttng-dev , paulmck Message-ID: <20220623090852.GE271640@localhost.localdomain>+E0224BC1F62E0434 References: <20220614035533.GA174967@localhost.localdomain> <20220616080912.GA246781@localhost.localdomain> <1711122492.5944.1655473043420.JavaMail.zimbra@efficios.com> <20220621035206.GA267474@localhost.localdomain> <1843612610.17820.1655817158376.JavaMail.zimbra@efficios.com> <20220622074535.GA269641@localhost.localdomain> <1420937751.21327.1655903998961.JavaMail.zimbra@efficios.com> <1779693726.26841.1655929703853.JavaMail.zimbra@efficios.com> <589742415.26853.1655931120526.JavaMail.zimbra@efficios.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <589742415.26853.1655931120526.JavaMail.zimbra@efficios.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:szsandstone.com:qybgforeign:qybgforeign8 X-QQ-Bgrelay: 1 Subject: Re: [lttng-dev] ***UNCHECKED*** Re: Re: urcu workqueue thread uses 99% of cpu while workqueue is empty X-BeenThere: lttng-dev@lists.lttng.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: LTTng development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Minlan Wang via lttng-dev Reply-To: Minlan Wang Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: lttng-dev-bounces@lists.lttng.org Sender: "lttng-dev" On Wed, Jun 22, 2022 at 04:52:00PM -0400, Mathieu Desnoyers wrote: [...] > remote: https://review.lttng.org/c/userspace-rcu/+/8441 Fix: workqueue: futex wait: handle spurious futex wakeups [NEW] I tried this patch in our environment, it worked fine, the issue does not appear anymore. B.R Minlan _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev