[Xen-devel] bug with pvonhvm, maybe triggered by rsync

[Peter Maloney <peter.maloney@xxxxxxxxxxxxxxxxxxxx>]

Using openSUSE 12.1
kernel vanilla 3.7rc2 built from source, with xen front drivers and
other xen stuff (same kernel as dom0)
using fglrx

Possibly triggered the bug by sending some git repositories from dom0 to
the domu using "rsync -avHP ..."

Here's a pastebin of the same you see below: http://pastebin.com/CtjxWDsV

[  752.577291] ------------[ cut here ]------------
[  752.577298] WARNING: at net/core/skbuff.c:3442
skb_try_coalesce+0x383/0x3c0()
[  752.577300] Hardware name: HVM domU
[  752.577301] Modules linked in: xt_tcpudp xt_pkttype xt_LOG xt_limit
ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT
iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns
nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables
xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables microcode
mperf dm_mod snd_hda_codec_hdmi snd_hda_intel crc32c_intel snd_hda_codec
ghash_clmulni_intel snd_ens1370 aesni_intel snd_hwdep gameport
ablk_helper cryptd snd_rawmidi snd_seq_device snd_pcm lrw aes_x86_64 xts
joydev gf128mul snd_timer ata_generic snd hid_generic ppdev ata_piix
parport_pc soundcore parport snd_page_alloc i2c_piix4 button floppy
pcspkr autofs4 usbhid ohci_hcd uhci_hcd ehci_hcd usbcore processor
thermal_sys usb_common [last unloaded: microcode]
[  752.577340] Pid: 3045, comm: sshd Tainted: G        W   
3.7.0-rc2-1-default #5
[  752.577341] Call Trace:
[  752.577343]  <IRQ>  [<ffffffff8109f10a>] warn_slowpath_common+0x7a/0xb0
[  752.577349]  [<ffffffff8109f155>] warn_slowpath_null+0x15/0x20
[  752.577351]  [<ffffffff814e7403>] skb_try_coalesce+0x383/0x3c0
[  752.577354]  [<ffffffff81537caf>] tcp_try_coalesce.part.50+0x2f/0x90
[  752.577356]  [<ffffffff8153ac14>] tcp_queue_rcv+0x104/0x120
[  752.577358]  [<ffffffff8153e048>] tcp_rcv_established+0x408/0x780
[  752.577361]  [<ffffffff81546db1>] tcp_v4_do_rcv+0x141/0x200
[  752.577362]  [<ffffffff81548af9>] tcp_v4_rcv+0x559/0x820
[  752.577364]  [<ffffffff8151e2c5>] ? nf_hook_slow+0x75/0x150
[  752.577366]  [<ffffffff81524500>] ? ip_rcv_finish+0x360/0x360
[  752.577368]  [<ffffffff815245d6>] ip_local_deliver_finish+0xd6/0x270
[  752.577369]  [<ffffffff815248f5>] ip_local_deliver+0x45/0x80
[  752.577371]  [<ffffffff815242b9>] ip_rcv_finish+0x119/0x360
[  752.577373]  [<ffffffff81524b3d>] ip_rcv+0x20d/0x2f0
[  752.577375]  [<ffffffff814f3ab2>] __netif_receive_skb+0x5e2/0x750
[  752.577376]  [<ffffffff814f3c3e>] netif_receive_skb+0x1e/0x80
[  752.577379]  [<ffffffff8147367b>] handle_incoming_queue+0xdb/0xe0
[  752.577381]  [<ffffffff81474349>] xennet_poll+0x279/0x420
[  752.577382]  [<ffffffff81473092>] ? xennet_tx_buf_gc+0x162/0x190
[  752.577384]  [<ffffffff814f5049>] net_rx_action+0x139/0x250
[  752.577386]  [<ffffffff810a75a8>] __do_softirq+0xb8/0x240
[  752.577389]  [<ffffffff81605adc>] call_softirq+0x1c/0x30
[  752.577391]  [<ffffffff8105f325>] do_softirq+0x65/0xa0
[  752.577392]  [<ffffffff810a788e>] irq_exit+0x8e/0xb0
[  752.577395]  [<ffffffff813c7bcf>] xen_evtchn_do_upcall+0x2f/0x40
[  752.577397]  [<ffffffff81605c6d>] xen_hvm_callback_vector+0x6d/0x80
[  752.577398]  <EOI>  [<ffffffff81604869>] ? system_call_fastpath+0x16/0x1b
[  752.577400] ---[ end trace 4dbd6f8d2234fde1 ]---


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