Re: PROBLEM: linksys USB1000linksys, asix driver (2.6.26.5)

[ CC netdev for network related things ]

On Mon, Oct 6, 2008 at 3:19 PM, Reigo Küngas [off-list ref] wrote:

Hi,

I have problem with linksys usb1000 gigabit network adapter - interface is
stop working after random period. Reloading asix driver will restore
interface work.

It is hitting the below warning -

1451        if (WARN_ON(skb->ip_summed != CHECKSUM_PARTIAL)) {
1452                if (skb_header_cloned(skb) &&
1453                    (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
1454                        return ERR_PTR(err);
1455        }

Which seems to be related to GSO - so what happens if you disable GSO
(ethtool -K ethX gso off )?
Does it work better then?

Also, not necessarily related to the issue at hand but the if()
portion of the above code looks somewhat problematic in that if
skb_header_cloned returns 0 pksb_expand_head will never be called we
will return ERR_PTR() of uninitialized value. Goes to check what
callers do with the return value..

Parag

usbcore: deregistering interface driver asix
eth2: unregister 'asix' usb-0000:00:03.2-1, ASIX AX88178 USB 2.0 Ethernet
eth2: register 'asix' at usb-0000:00:03.2-1, ASIX AX88178 USB 2.0 Ethernet,
00:12:17:f2:2b:c4
usbcore: registered new interface driver asix
eth2: link down
ADDRCONF(NETDEV_UP): eth2: link is not ready
ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
eth2: link up, 1000Mbps, full-duplex, lpa 0xC1E1
eth2: no IPv6 routers present
TCP: Treason uncloaked! Peer 217.228.138.121:2126/8080 shrinks window
2829308322:2829321390. Repaired.
php[5684]: segfault at 7fffd5524f10 ip 56c6a5 sp 7fffd5524ec0 error 6 in
php[400000+2a5000]
TCP: Treason uncloaked! Peer 88.196.248.115:63583/8080 shrinks window
3604724912:3604728120. Repaired.
------------[ cut here ]------------
WARNING: at net/core/dev.c:1451 skb_gso_segment+0x83/0x1b4()
Modules linked in: asix xfs nfsd lockd nfs_acl auth_rpcgss exportfs fuse
sunrpc ipt_REJECT xt_multiport xt_state xt_tcpudp ipt_REDIRECT
iptable_mangle iptable_nat nf_nat iptable_filter ip_vs_ftp ip_vs
nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack ipv6 ip_tables x_tables
rtc_cmos pcspkr button tg3 rtc_core i2c_piix4 usbnet k8temp rtc_lib e100
i2c_core mii hwmon uhci_hcd ohci_hcd ehci_hcd [last unloaded: asix]
Pid: 0, comm: swapper Not tainted 2.6.26.5 #1

Call Trace:
 <IRQ>  [<ffffffff80231fbf>] warn_on_slowpath+0x58/0x94
 [<ffffffffa00fc8f2>] ? :nf_nat:tcp_manip_pkt+0xcc/0xde
 [<ffffffffa00fb267>] ? :nf_nat:manip_pkt+0x85/0xf8
 [<ffffffff80435580>] ? xfrm_lookup+0x11/0x2e
 [<ffffffff803dedcc>] skb_gso_segment+0x83/0x1b4
 [<ffffffff803df083>] dev_hard_start_xmit+0x186/0x245
 [<ffffffff803edbb7>] __qdisc_run+0xd5/0x1d6
 [<ffffffff803df401>] dev_queue_xmit+0x1b1/0x2c8
 [<ffffffff80400ce5>] ? ip_finish_output+0x0/0x241
 [<ffffffff80400ee4>] ip_finish_output+0x1ff/0x241
 [<ffffffff80400fc1>] ip_output+0x9b/0xa0
 [<ffffffff80400120>] ip_local_out+0x20/0x24
 [<ffffffff8040094b>] ip_queue_xmit+0x2c9/0x31f
 [<ffffffff803d99c3>] ? skb_release_data+0xc6/0xcb
 [<ffffffff803d972e>] ? __kfree_skb+0x74/0x78
 [<ffffffff80410cf9>] tcp_transmit_skb+0x6a1/0x6e4
 [<ffffffff80413677>] __tcp_push_pending_frames+0x745/0x85b
 [<ffffffff803d99c3>] ? skb_release_data+0xc6/0xcb
 [<ffffffff8040f44d>] tcp_rcv_established+0x11d/0xb68
 [<ffffffff80415a75>] tcp_v4_do_rcv+0x31/0x1d6
 [<ffffffff803e9b8c>] ? sk_filter+0x81/0x8d
 [<ffffffff80416077>] tcp_v4_rcv+0x45d/0x6d0
 [<ffffffff803fc64a>] ip_local_deliver_finish+0x124/0x1f9
 [<ffffffff803fc791>] ip_local_deliver+0x72/0x7a
 [<ffffffff803fc26d>] ip_rcv_finish+0x305/0x32a
 [<ffffffff80415a75>] ? tcp_v4_do_rcv+0x31/0x1d6
 [<ffffffff803fc4f0>] ip_rcv+0x25e/0x294
 [<ffffffff803dea37>] netif_receive_skb+0x32d/0x34f
 [<ffffffffa00591ee>] :tg3:tg3_poll+0x782/0xa35
 [<ffffffff803fc26d>] ? ip_rcv_finish+0x305/0x32a
 [<ffffffff803dd63e>] net_rx_action+0x7a/0x12e
 [<ffffffff8023702a>] __do_softirq+0x66/0xd3
 [<ffffffff8020d11c>] call_softirq+0x1c/0x28
 [<ffffffff8020ec34>] do_softirq+0x34/0x72
 [<ffffffff80236e0e>] irq_exit+0x3f/0x80
 [<ffffffff8020ef1c>] do_IRQ+0x145/0x167
 [<ffffffff8020a000>] ? default_idle+0x0/0x40
 [<ffffffff8020a000>] ? default_idle+0x0/0x40
 [<ffffffff8020c4a1>] ret_from_intr+0x0/0xa
 <EOI>  [<ffffffff8020a02b>] ? default_idle+0x2b/0x40
 [<ffffffff8020b043>] ? enter_idle+0x22/0x24
 [<ffffffff8020b0bd>] ? cpu_idle+0x78/0xc0
 [<ffffffff80454405>] ? start_secondary+0x15a/0x15e