From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1Cydqv-0004O4-Ho for user-mode-linux-devel@lists.sourceforge.net; Tue, 08 Feb 2005 14:29:01 -0800 Received: from lakshmi.addtoit.com ([198.99.130.6] helo=lakshmi.solana.com) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.41) id 1Cydqu-00042W-W8 for user-mode-linux-devel@lists.sourceforge.net; Tue, 08 Feb 2005 14:29:01 -0800 Message-Id: <200502090017.j190Hds0014277@ccure.user-mode-linux.org> Subject: Re: [uml-devel] Re: UML tuntap driver problem with queueing In-Reply-To: Your message of "Tue, 08 Feb 2005 21:37:06 +0200." <87zmyej125.fsf@aka.i.naked.iki.fi> References: <87hdks5y35.fsf@aka.i.naked.iki.fi> <87zmyej125.fsf@aka.i.naked.iki.fi> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii From: Jeff Dike Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Tue, 08 Feb 2005 19:17:39 -0500 To: Nuutti Kotivuori Cc: user-mode-linux-devel@lists.sourceforge.net, McGroarty naked@iki.fi said: > ust a heads up here to the UML folks in case it was missed - with the > current code, packet delivery to UML machines using tuntap driver > *will* mess up (stall totally or major bursts of lag) if more than 10 > packets are queued to UML at a time. It wasn't missed. Someone else posted (http://marc.theaimsgroup.com/?l=user-mode-linux-user&m=110752781409419&w=2) that networking freezes until a character is typed on the console. This is a clear sign of the SIGIO missing some traffic and letting it sit on the host until some other IO happens. > Ofcourse, the actual cause for this should be fixed (SIGIO mess up or > whatever it is). Yup. It does look like there's some sort of race in the SIGIO handler. Jeff ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel