Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964807AbbLOJ3V (ORCPT ); Tue, 15 Dec 2015 04:29:21 -0500 Received: from mail-wm0-f42.google.com ([74.125.82.42]:35106 "EHLO mail-wm0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753318AbbLOJ3R (ORCPT ); Tue, 15 Dec 2015 04:29:17 -0500 Date: Tue, 15 Dec 2015 10:29:15 +0100 From: Christoffer Dall To: Bhushan Bharat Cc: "kvmarm@lists.cs.columbia.edu" , "kvm@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: Re: ARM64/KVM: Bad page state in process iperf Message-ID: <20151215092915.GF4120@cbox> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2929 Lines: 63 On Tue, Dec 15, 2015 at 03:46:03AM +0000, Bhushan Bharat wrote: > > Hi All, > > I am running "iperf" in KVM guest on ARM64 machine and observing below crash. Which host/guest kernel version is this? Which hardware? -Christoffer > > ============================= > $iperf -c 3.3.3.3 -P 4 -t 0 -i 5 -w 90k > ------------------------------------------------------------ > Client connecting to 3.3.3.3, TCP port 5001 > TCP window size: 180 KByte (WARNING: requested 90.0 KByte) > ------------------------------------------------------------ > [ 3] local 3.3.3.1 port 51131 connected with 3.3.3.3 port 5001 > [ 6] local 3.3.3.1 port 51134 connected with 3.3.3.3 port 5001 > [ 5] local 3.3.3.1 port 51133 connected with 3.3.3.3 port 5001 > [ 4] local 3.3.3.1 port 51132 connected with 3.3.3.3 port 5001 > [ 53.088567] random: nonblocking pool is initialized > [ ID] Interval Transfer Bandwidth > [ 3] 0.0- 5.0 sec 638 MBytes 1.07 Gbits/sec > [ 4] 35.0-40.0 sec 1.66 GBytes 2.85 Gbits/sec > [ 5] 40.0-45.0 sec 1.11 GBytes 1.90 Gbits/sec > [ 4] 40.0-45.0 sec 1.16 GBytes 1.99 Gbits/sec > [ 98.895207] BUG: Bad page state in process iperf pfn:0a584 > [ 98.896164] page:ffff780000296100 count:-1 mapcount:0 mapping: (null) index:0x0 > [ 98.897436] flags: 0x0() > [ 98.897885] page dumped because: nonzero _count > [ 98.898640] Modules linked in: > [ 98.899178] CPU: 0 PID: 1639 Comm: iperf Not tainted 4.1.8-00461-ge5431ad #141 > [ 98.900302] Hardware name: linux,dummy-virt (DT) > [ 98.901014] Call trace: > [ 98.901406] [] dump_backtrace+0x0/0x12c > [ 98.902522] [] show_stack+0x10/0x1c > [ 98.903441] [] dump_stack+0x8c/0xdc > [ 98.904202] [] bad_page+0xc4/0x114 > [ 98.904945] [] get_page_from_freelist+0x590/0x63c > [ 98.905871] [] __alloc_pages_nodemask+0xec/0x794 > [ 98.906791] [] skb_page_frag_refill+0x70/0xa8 > [ 98.907678] [] sk_page_frag_refill+0x20/0xd0 > [ 98.908550] [] tcp_sendmsg+0x1f8/0x9a8 > [ 98.909368] [] inet_sendmsg+0x5c/0xd0 > [ 98.910178] [] sock_sendmsg+0x14/0x58 > [ 98.911027] [] sock_write_iter+0x64/0xbc > [ 98.912119] [] __vfs_write+0xac/0x10c > [ 98.913126] [] vfs_write+0x90/0x1a0 > [ 98.913963] [] SyS_write+0x40/0xa0 > > ----------- > _______________________________________________ > kvmarm mailing list > kvmarm@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/kvmarm -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/