From mboxrd@z Thu Jan 1 00:00:00 1970 From: Emmanuel Lacour Subject: Re: virtio_net hang Date: Sat, 22 Nov 2008 15:20:10 +0100 Message-ID: <20081122142009.GA9467@easter-eggs.com> References: <20081113122709.GB14254@easter-eggs.com> <1226589153.19068.7.camel@blaa> <20081113152452.GI14254@easter-eggs.com> <20081114092339.GC11961@easter-eggs.com> <1226687204.9332.113.camel@blaa> <20081118183756.GP1897@easter-eggs.com> <1227100432.3698.47.camel@blaa> <1227121389.3698.136.camel@blaa> <20081120113650.GE3717@easter-eggs.com> <20081121083823.GB3721@easter-eggs.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: kvm@vger.kernel.org Return-path: Received: from volubilis.easter-eggs.org ([212.85.154.90]:49073 "EHLO volubilis.easter-eggs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758071AbYKVOUO (ORCPT ); Sat, 22 Nov 2008 09:20:14 -0500 Received: from localhost (localhost [127.0.0.1]) by volubilis.easter-eggs.org (Postfix) with ESMTP id 2C42724343 for ; Sat, 22 Nov 2008 15:20:12 +0100 (CET) Received: from datura.easter-eggs.fr (vbo91-5-88-186-16-26.fbx.proxad.net [88.186.16.26]) by volubilis.easter-eggs.org (Postfix) with ESMTP id A55C42432D for ; Sat, 22 Nov 2008 15:20:11 +0100 (CET) Content-Disposition: inline In-Reply-To: <20081121083823.GB3721@easter-eggs.com> Sender: kvm-owner@vger.kernel.org List-ID: On Fri, Nov 21, 2008 at 09:38:23AM +0100, Emmanuel Lacour wrote: > > I continue to have this problem with this setup: > > - host 2.6.27.4, kvm-78, intel, debian etch 64bits > - guest 2.6.27.6, debian sarge 32 bits, e1000, 2 vcpus > > up/down of interface is enough to recover. > Today I had a trace on this problem (first time), maybe this can help: Nov 21 14:34:42 foo kernel: [58345.000104] ------------[ cut here ]------------ Nov 21 14:34:42 foo kernel: [58345.000617] WARNING: at net/sched/sch_generic.c:219 dev_watchdog+0x164/0x1fd() Nov 21 14:34:42 foo kernel: [58345.001374] NETDEV WATCHDOG: eth0 (e1000): transmit timed out Nov 21 14:34:42 foo kernel: [58345.001825] Modules linked in: nfsd auth_rpcgss exportfs ac battery ipv6 nfs lockd nfs_acl sunrpc nf_nat_ftp nf_conntrack_ftp xt_tcpudp iptable_mangle iptable_nat nf_nat ipt_REJECT xt_limit nf_conntrack_ipv4 xt_state nf_conntrack ipt_LOG ipt_ULOG iptable_filter ip_tables x_tables dm_mod sd_mod snd_pcsp virtio_balloon snd_pcm snd_timer snd soundcore floppy snd_page_alloc psmouse serio_raw virtio_pci i2c_piix4 button i2c_core evdev ext3 jbd mbcache ide_cd_mod cdrom ide_disk ata_generic ata_piix libata scsi_mod dock piix ide_core uhci_hcd e1000 usbcore thermal processor fan thermal_sys Nov 21 14:34:42 foo kernel: [58345.022597] Pid: 0, comm: swapper Not tainted 2.6.27.6 #1 Nov 21 14:34:42 foo kernel: [58345.023027] [] warn_slowpath+0x58/0x70 Nov 21 14:34:42 foo kernel: [58345.023470] [] ip_output+0x8e/0x90 Nov 21 14:34:42 foo kernel: [58345.029292] [] ip_local_out+0x15/0x17 Nov 21 14:34:42 foo kernel: [58345.030231] [] ip_queue_xmit+0x2b0/0x2f7 Nov 21 14:34:42 foo kernel: [58345.030684] [] pvclock_get_nsec_offset+0xb/0x59 Nov 21 14:34:42 foo kernel: [58345.031163] [] pvclock_clocksource_read+0x1a/0x2d Nov 21 14:34:42 foo kernel: [58345.031642] [] pvclock_get_nsec_offset+0xb/0x59 Nov 21 14:34:42 foo kernel: [58345.032130] [] pvclock_clocksource_read+0x1a/0x2d Nov 21 14:34:42 foo kernel: [58345.032608] [] pvclock_get_nsec_offset+0xb/0x59 Nov 21 14:34:42 foo kernel: [58345.033080] [] pvclock_get_nsec_offset+0xb/0x59 Nov 21 14:34:42 foo kernel: [58345.033570] [] pvclock_get_nsec_offset+0xb/0x59 Nov 21 14:34:42 foo kernel: [58345.034036] [] pvclock_clocksource_read+0x1a/0x2d Nov 21 14:34:42 foo kernel: [58345.034506] [] dev_watchdog+0x164/0x1fd Nov 21 14:34:42 foo kernel: [58345.034951] [] __atomic_notifier_call_chain+0x10/0x13 Nov 21 14:34:42 foo kernel: [58345.035455] [] _spin_lock_bh+0xf/0x12 Nov 21 14:34:42 foo kernel: [58345.035898] [] timer_stats_account_timer+0x22/0x27 Nov 21 14:34:42 foo kernel: [58345.036384] [] run_timer_softirq+0x11f/0x183 Nov 21 14:34:42 foo kernel: [58345.036840] [] dev_watchdog+0x0/0x1fd Nov 21 14:34:42 foo kernel: [58345.037278] [] hrtimer_interrupt+0x136/0x15e Nov 21 14:34:42 foo kernel: [58345.037736] [] __do_softirq+0x69/0xd3 Nov 21 14:34:42 foo kernel: [58345.038172] [] do_softirq+0x44/0x52 Nov 21 14:34:42 foo kernel: [58345.038608] [] irq_exit+0x38/0x6c Nov 21 14:34:42 foo kernel: [58345.039035] [] smp_apic_timer_interrupt+0x2a/0x33 Nov 21 14:34:42 foo kernel: [58345.039518] [] apic_timer_interrupt+0x28/0x30 Nov 21 14:34:42 foo kernel: [58345.039980] [] native_safe_halt+0x2/0x3 Nov 21 14:34:42 foo kernel: [58345.040443] [] default_idle+0x2e/0x54 Nov 21 14:34:42 foo kernel: [58345.040886] [] cpu_idle+0xc4/0xf7 Nov 21 14:34:42 foo kernel: [58345.041310] ======================= Nov 21 14:34:42 foo kernel: [58345.041692] ---[ end trace 934a9cb836d2434b ]--- Nov 21 14:34:42 foo kernel: [58345.080575] e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None