From owner-freebsd-xen@FreeBSD.ORG Tue Feb 10 19:30:50 2009 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E74491065756 for ; Tue, 10 Feb 2009 19:30:50 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: from rv-out-0506.google.com (rv-out-0506.google.com [209.85.198.224]) by mx1.freebsd.org (Postfix) with ESMTP id B0FC58FC36 for ; Tue, 10 Feb 2009 19:30:50 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: by rv-out-0506.google.com with SMTP id b25so2590447rvf.43 for ; Tue, 10 Feb 2009 11:30:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type:content-transfer-encoding; bh=oiXKNp83hhzYLtqEjgCMdN8hsMkYpMV/bnflnc/Rcto=; b=ODe1fcde7b/fNQe9L5sLE/bro+hCmekiSeV7IpYVNqS6vqukxlQHTHysJHXcLYiYrW sqRk1CK/RlNY2l6iX8tBi++8Nps9s+JYMk7HvD14LFWbEAYBjRnljHGjcea5NwwzQuXo lGfi8J7ggpiYJEVHU6P/UrkqcRTcCWAZJufaU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=PrqTEizRewZkandIFOeDP9IzmIT4OXOXlHQqawOBIThpywKwLAVjoFWu3sJJ83qmGV qg8LjWqWqe8jhUPpz4SWDfWmH1Ifw1GJdnA65ADKBwZF5Q0Un37bVrdi+mI0zOKxmOU0 w4Zd0k1VwlYAIEJwxUIqyPMaEIzGeGnB+TnJk= MIME-Version: 1.0 Sender: mat.macy@gmail.com Received: by 10.140.165.21 with SMTP id n21mr4860173rve.257.1234294250426; Tue, 10 Feb 2009 11:30:50 -0800 (PST) In-Reply-To: <13732317.41351234281573360.JavaMail.root@zim.freshx.de> References: <17604735.41331234281418189.JavaMail.root@zim.freshx.de> <13732317.41351234281573360.JavaMail.root@zim.freshx.de> Date: Tue, 10 Feb 2009 11:30:50 -0800 X-Google-Sender-Auth: 60561d8a77c5321e Message-ID: <3c1674c90902101130r58c05f07we473c0897fe29481@mail.gmail.com> From: Kip Macy To: Kai Mosebach Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-xen Subject: Re: domU page faults under heavy network load X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Feb 2009 19:30:54 -0000 How big is the memory allocation to the VM? Thanks, Kip On Tue, Feb 10, 2009 at 7:59 AM, Kai Mosebach wrote: > Hi, > > running r188436M on Xen3.3.1 (Centos5, x86_64). The reason is not to clear but seems related to heavy load on pipes + memory + network? > It is repeatable with : > > bsd8# dd if=/dev/zero | nc otherhost 12345 > > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 00 > fault virtual address = 0xd216dd00 > fault code = supervisor read, page not present > instruction pointer = 0x21:0xc02e4d40 > stack pointer = 0x29:0xc332aba8 > frame pointer = 0x29:0xc332abfc > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 1, pres 1, def32 1, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 12 (irq137: xn) > [thread pid 12 tid 100025 ] > Stopped at xlvbd_add+0x2f70: movl 0x900(%edx,%eax,4),%edx > db> bt > > > > On otherhost i get some stuff (between 19 and 62 MB), after nc closes down eventually > > otherhost# nc -l 12345 | cpipe -vt -b 65535 >/dev/null > ... > thru: 108930.791ms at 184.3kB/s ( 184.3kB/s avg) 19.6MB > > best Kai > _______________________________________________ > freebsd-xen@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-xen > To unsubscribe, send any mail to "freebsd-xen-unsubscribe@freebsd.org" >