Bonsoir,
J’ai un curieux problème sur l’un de mes serveurs.
Basiquement, il se manifeste en donnant la commande suivante :
mv /home/somedirectory /mnt/nfsdisk/somedirectory & disown
La copie commence puis quelques minutes plus tard s’arrête sans raison.
/mnt/nfsdisk est un dossier monté en NFS sur IPv4 sans aucun paramètre spécial.
Le serveur est Dell PowerEdge 850
Le kernel est (Debian lenny): Linux serveur-1 2.6.26-2-amd64 #1 SMP Fri Mar 27 04:02:59 UTC 2009 x86_64 GNU/Linux
Le load: load average: 2.29, 2.05, 1.94
Et dans le syslog:
[quote]Apr 23 21:14:32 serveur-1 kernel: [91057.108437] ------------[ cut here ]------------
Apr 23 21:14:32 serveur-1 kernel: [91057.108470] WARNING: at net/core/dev.c:1451 skb_gso_segment+0x88/0x1af()
Apr 23 21:14:32 serveur-1 kernel: [91057.108503] Modules linked in: xt_multiport appletalk crc32c libcrc32c nfnetlink_queue nfnetlink nf_conntrack_ipv4 ipt_REJECT xt_tcpudp iptable_filter ip_tables xt_iprange xt_state nf_conntrack xt_mark xt_NFQUEUE x_tables ipmi_devintf ipmi_si ipmi_msghandler ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi scsi_transport_iscsi nfsd auth_rpcgss exportfs nfs lockd nfs_acl sunrpc bonding ipv6 ext2 mbcache loop snd_pcm snd_timer snd soundcore snd_page_alloc serio_raw psmouse pcspkr iTCO_wdt i2c_i801 i2c_core rng_core button i3000_edac edac_core shpchp pci_hotplug evdev dcdbas joydev xfs sha256_generic aes_x86_64 aes_generic cbc dm_crypt crypto_blkcipher dm_mirror dm_log dm_snapshot dm_mod ide_floppy ide_cd_mod cdrom ata_generic libata dock usbhid hid ff_memless sg sd_mod piix siimage ide_pci_generic ide_core arcmsr ehci_hcd scsi_mod uhci_hcd tg3 thermal processor fan thermal_sys
Apr 23 21:14:32 serveur-1 kernel: [91057.110280] Pid: 0, comm: swapper Tainted: G W 2.6.26-2-amd64 #1
Apr 23 21:14:32 serveur-1 kernel: [91057.110320]
Apr 23 21:14:32 serveur-1 kernel: [91057.110321] Call Trace:
Apr 23 21:14:32 serveur-1 kernel: [91057.110373] [] warn_on_slowpath+0x51/0x7a
Apr 23 21:14:32 serveur-1 kernel: [91057.110461] [] :nf_conntrack:__nf_ct_refresh_acct+0x108/0x15c
Apr 23 21:14:32 serveur-1 kernel: [91057.110554] [] :ipv6:fib6_lookup_1+0x95/0x109
Apr 23 21:14:32 serveur-1 kernel: [91057.110628] [] :ipv6:find_match+0x104/0x160
Apr 23 21:14:32 serveur-1 kernel: [91057.110711] [] :ipv6:ip6_pol_route+0x1d0/0x296
Apr 23 21:14:32 serveur-1 kernel: [91057.110770] [] skb_gso_segment+0x88/0x1af
Apr 23 21:14:32 serveur-1 kernel: [91057.110823] [] dev_hard_start_xmit+0x17f/0x24e
Apr 23 21:14:32 serveur-1 kernel: [91057.110878] [] dev_queue_xmit+0x1f0/0x2b2
Apr 23 21:14:32 serveur-1 kernel: [91057.110949] [] :ipv6:ip6_output+0xc11/0xc37
Apr 23 21:14:32 serveur-1 kernel: [91057.110998] [] fib_rules_lookup+0x7f/0xb3
Apr 23 21:14:32 serveur-1 kernel: [91057.111083] [] :ipv6:ip6_xmit+0x35c/0x44e
Apr 23 21:14:32 serveur-1 kernel: [91057.111179] [] :ipv6:inet6_csk_xmit+0x219/0x235
Apr 23 21:14:32 serveur-1 kernel: [91057.111275] [] tcp_transmit_skb+0x739/0x776
Apr 23 21:14:32 serveur-1 kernel: [91057.111332] [] tso_fragment+0xef/0x13b
Apr 23 21:14:32 serveur-1 kernel: [91057.111388] [] __tcp_push_pending_frames+0x6ba/0x78d
Apr 23 21:14:32 serveur-1 kernel: [91057.111454] [] tcp_rcv_established+0x80f/0x8b6
Apr 23 21:14:32 serveur-1 kernel: [91057.111534] [] :ipv6:tcp_v6_do_rcv+0x626/0x8ff
Apr 23 21:14:32 serveur-1 kernel: [91057.111588] [] tcp_rcv_established+0x5dc/0x8b6
Apr 23 21:14:32 serveur-1 kernel: [91057.111669] [] :ipv6:ip6_pol_route_input+0x0/0x11
Apr 23 21:14:32 serveur-1 kernel: [91057.111736] [] :ipv6:fib6_rule_action+0x79/0x196
Apr 23 21:14:32 serveur-1 kernel: [91057.111778] [] skb_checksum+0x4d/0x285
Apr 23 21:14:32 serveur-1 kernel: [91057.111823] [] __inet6_lookup_established+0xed/0x258
Apr 23 21:14:32 serveur-1 kernel: [91057.111884] [] :ipv6:tcp_v6_rcv+0x638/0x685
Apr 23 21:14:32 serveur-1 kernel: [91057.111941] [] :ipv6:ip6_input_finish+0x1d5/0x34c
Apr 23 21:14:32 serveur-1 kernel: [91057.111994] [] :ipv6:ipv6_rcv+0x32d/0x38d
Apr 23 21:14:32 serveur-1 kernel: [91057.112044] [] :tg3:tg3_poll+0x641/0x8f1
Apr 23 21:14:32 serveur-1 kernel: [91057.112107] [] net_rx_action+0xab/0x1da
Apr 23 21:14:32 serveur-1 kernel: [91057.112149] [] __do_softirq+0x5c/0xd1
Apr 23 21:14:32 serveur-1 kernel: [91057.112176] [] ack_apic_level+0x53/0xd8
Apr 23 21:14:32 serveur-1 kernel: [91057.112212] [] call_softirq+0x1c/0x28
Apr 23 21:14:32 serveur-1 kernel: [91057.112243] [] do_softirq+0x3c/0x81
Apr 23 21:14:32 serveur-1 kernel: [91057.112271] [] irq_exit+0x3f/0x83
Apr 23 21:14:32 serveur-1 kernel: [91057.112300] [] do_IRQ+0xb9/0xd9
Apr 23 21:14:32 serveur-1 kernel: [91057.112328] [] mwait_idle+0x0/0x4d
Apr 23 21:14:32 serveur-1 kernel: [91057.112357] [] ret_from_intr+0x0/0x19
Apr 23 21:14:32 serveur-1 kernel: [91057.112385] [] mwait_idle+0x41/0x4d
Apr 23 21:14:32 serveur-1 kernel: [91057.112449] [] cpu_idle+0x89/0xb3
Apr 23 21:14:32 serveur-1 kernel: [91057.112520]
Apr 23 21:14:32 serveur-1 kernel: [91057.112540] —[ end trace d73e16009c0227c9 ]—
[/quote]
A la suite d’une recherche sur Google, il semblerait que ce soit un bug du kernel lié à IPv6.
J’ai effectivement des adresses IPv6 fournies par Sixxs.
Est-ce que quelqu’un a une idée que faire pour éviter ceci ?
Merci de votre aide.