From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by befuddled.reisers.ca (Postfix, from userid 65534) id 4FBE31C42C7; Sun, 8 Sep 2019 10:24:09 -0400 (EDT) Authentication-Results: befuddled.reisers.ca; dkim=pass (2048-bit key; unprotected) header.d=coolip.net header.i=@coolip.net header.b="PoOYes14"; dkim-atps=neutral Received: from mailer.coolip.net (mailer.coolip.net [54.165.87.160]) by befuddled.reisers.ca (Postfix) with ESMTPS id 834091C355B for ; Sun, 8 Sep 2019 10:24:07 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mailer.coolip.net (Postfix) with ESMTP id 42225E2C9A for ; Sun, 8 Sep 2019 10:24:06 -0400 (EDT) Received: from mailer.coolip.net ([127.0.0.1]) by localhost (mailer.coolip.net [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id bC3GzrWPRoif for ; Sun, 8 Sep 2019 10:24:05 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mailer.coolip.net (Postfix) with ESMTP id EFED3E2C9B for ; Sun, 8 Sep 2019 10:24:04 -0400 (EDT) DKIM-Filter: OpenDKIM Filter v2.10.3 mailer.coolip.net EFED3E2C9B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=coolip.net; s=E7505158-8BEF-11E7-8FDA-0CC2F7FFB772; t=1567952645; bh=CK860FvMcRrdJDGJ2n7zZv4Ek1r7wT7jn73el1Uqp5c=; h=Date:From:To:Message-ID:MIME-Version; b=PoOYes14seHEQpUryKSOXu1Br7MBeilWcTEdpQQ+nmWkMs1IFlnbDjTA/WE3fadip BZ25q6MyLWKx0d2QtIicKqiHiDCG8zBaFEYsCNNWkLAysPInreoIMqgeZM9Ujpqh7j oB+8oArwucC2jFKg/r5P4QUIbQBA7oIDkCzz23yJejqzOixxyUA3MfCJyqfJT8z7LX zYyyc+mgjlw3J03lSMqLxAxPdgYpHWhp1OFOKHzFuGNAZwjxcNweEq2dq0ExBtoiPB mC0RbBt5R6uX03x1x645OgLICyWRLAPb1wRQI/xnKVF4sMyseEFqr1EPVW4hs7oV73 zuhfonoGLLYiA== X-Virus-Scanned: amavisd-new at mailer.coolip.net Received: from mailer.coolip.net ([127.0.0.1]) by localhost (mailer.coolip.net [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id nQJJ-BGeUbIy for ; Sun, 8 Sep 2019 10:24:04 -0400 (EDT) Received: from io.coolip.net (cpe-75-186-88-137.cinci.res.rr.com [75.186.88.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: kprescott@coolip.net) by mailer.coolip.net (Postfix) with ESMTPSA id 7C388E2C9A for ; Sun, 8 Sep 2019 10:24:04 -0400 (EDT) Date: Sun, 8 Sep 2019 10:21:49 -0400 (EDT) From: Kelly Prescott To: "Speakup is a screen review system for Linux." Subject: help fixing speakup hang problem w smp kernels Message-ID: User-Agent: Alpine 2.21.9999 (LNX 336 2019-05-04) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 X-BeenThere: speakup@linux-speakup.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Speakup is a screen review system for Linux." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Sep 2019 14:24:09 -0000 I will start with the disclaimer that I know a little C, but I am by no means a kernel developer nor any other kind of developer. I do it for fun or on small projects I need for myself. I have noticed that now that ArchLinux has moved to the Linux 5.x series, my system seems to hang with speakup much more than it ever did before. I do not get the frequent hangs on my Ubuntu 16,4 and 18.4 systems. I get them, just not as frequently. I now have 3 archlinux machines, 2 laptops and one desktop where I can make the machine hang with in 5 minutes of trying. I do this by making sure the machine is busy doing something, network activity, logging etc. Then I opena large file and review the screen with Speakup making my keystrokes faster and faster until the machine hangs. It is also interesting that in my desktop machine when I installed a 4-port network card, the hangs became so bad I had to take it out. When I ran the machine without speakup, they went away, so It was not the network card. Like I said, I can now reliably produce a hang. I know I am not qualified to fix it, but I would like to offer my assistance in providing dumps to assist others in helping find the problem.' I am going to try to get the dumps logged to a serial console and then saved to files. With that said, What information do I need to provide to make this meaningful. What I would like is some instruction and pointers so I can accurately help and not just put out useless noise. As we move toward taking the kernel out of staging, I think we need to fix this as it results in a total hang of the machine. I am willing to grant machine access, make and send crash information, run tests, or anything else I can do to help get this resolved. If someone will reply with what needs to be done from my side, I would be happy to get started. Thanks. -- Kelly Prescott