From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50402) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fQVvG-00019v-Jw for qemu-devel@nongnu.org; Wed, 06 Jun 2018 06:44:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fQVvC-0005fG-Ne for qemu-devel@nongnu.org; Wed, 06 Jun 2018 06:44:10 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:42164 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fQVvC-0005cf-J8 for qemu-devel@nongnu.org; Wed, 06 Jun 2018 06:44:06 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 64EDF40251BD for ; Wed, 6 Jun 2018 10:44:00 +0000 (UTC) Date: Wed, 6 Jun 2018 18:43:57 +0800 From: Fam Zheng Message-ID: <20180606104357.GB3205@lemon.usersys.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Subject: [Qemu-devel] 100% host cpu with gtk3 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kraxel@redhat.com Hi Gerd, When using the gtk frontend, it seems there is a busy loop in libgtk repeatedly calling recvmsg, causing 100% cpu on the main thread. This started to appear after I upgraded to Fedora 28. Is this a known problem? Any hints on how to track it down? Fam