From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59618) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZC0o3-0001A5-84 for qemu-devel@nongnu.org; Mon, 06 Jul 2015 03:27:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZC0o2-0004Ey-EO for qemu-devel@nongnu.org; Mon, 06 Jul 2015 03:27:11 -0400 Received: from mail-ob0-x233.google.com ([2607:f8b0:4003:c01::233]:33626) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZC0o2-0004Ek-9j for qemu-devel@nongnu.org; Mon, 06 Jul 2015 03:27:10 -0400 Received: by obbnt2 with SMTP id nt2so20532815obb.0 for ; Mon, 06 Jul 2015 00:27:08 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20150706015557.GA8444@ad.nay.redhat.com> References: <20150706015557.GA8444@ad.nay.redhat.com> Date: Mon, 6 Jul 2015 10:27:08 +0300 Message-ID: From: Max Filippov Content-Type: text/plain; charset=UTF-8 Subject: Re: [Qemu-devel] TAP network breaks after debugger break-in List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Fam Zheng Cc: qemu-devel , Stefan Hajnoczi On Mon, Jul 6, 2015 at 4:55 AM, Fam Zheng wrote: > On Sat, 07/04 10:47, Max Filippov wrote: >> Hello, >> >> I'm using QEMU with TAP network and after the commit >> 0a2df857a703 "Merge remote-tracking branch >> 'remotes/stefanha/tags/net-pull-request' into staging" >> I've noticed that activation of debugger connected to QEMU's >> gdbstub during network I/O almost always breaks network >> connection: network stops working completely after return >> from the debugger. >> >> Stefan, Fam, any hint on where to start debugging it? >> > > Which NIC are you using? opencores_eth. -- Thanks. -- Max