On Mon, Oct 31, 2011 at 12:24:14PM -0700, Boris Derzhavets wrote:
>    Seems to related
> 
>    https://bugs.launchpad.net/ubuntu/+source/xen/+bug/854829
> 

Thanks, that seems to be the same bug.

Is the bugfix patch from xen-unstable going to backported to xen-4.1-testing.hg 
? 
(4.1 backported patch available on ubuntu's launchpad above..)


-- Pasi


>    Boris.
> 
>    --- On Mon, 10/31/11, Pasi Kärkkäinen <pa...@iki.fi> wrote:
> 
>      From: Pasi Kärkkäinen <pa...@iki.fi>
>      Subject: [Xen-devel] Xen 4.1.2 HVM guest realtek nic problems (eth0
>      8139cp transmit queue timed out)
>      To: xen-de...@lists.xensource.com
>      Date: Monday, October 31, 2011, 2:49 PM
> 
>      Hello,
> 
>      While testing Xen 4.1.2 and HVM guests I noticed the following problem
>      with Fedora 16 HVM guests (using Linux 3.1.0 kernel in the VM):
> 
>      The errors (call trace) happens pretty much immediately when there's
>      some network traffic going on..
> 
>      Simple "yum update" in the VM triggers the problem..
> 
>      [    0.000000] Linux version 3.1.0-5.fc16.x86_64
>      ([1]mockbu...@x86-10.phx2.fedoraproject.org) (gcc version 4.6.1 20111003
>      (Red Hat 4.6.1-10) (GCC) ) #1 SMP Thu Oct 27 03:46:50 UTC 2011
>      [    0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.1.0-5.fc16.x86_64
>      root=/dev/mapper/vg_f16test64hvm-lv_root ro
>      rd.lvm.lv=vg_f16test64hvm/lv_root rd.dm=0 SYSFONT=latarcyrheb-sun16 rhgb
>      KEYTABLE=fi rd.md=0 rd.luks=0 rd.lvm.lv=vg_f16test64hvm/lv_swap
>      LANG=en_US.UTF-8 console=ttyS0,38400 console=tty0
>      <snip>
> 
>      [   28.998481] 8139cp 0000:00:03.0: eth0: link up, 100Mbps, full-duplex,
>      lpa 0x05E1
>      [  149.712071] ------------[ cut here ]------------
>      [  149.717216] WARNING: at net/sched/sch_generic.c:255
>      dev_watchdog+0xf0/0x150()
>      [  149.724709] Hardware name: HVM domU
>      [  149.728738] NETDEV WATCHDOG: eth0 (8139cp): transmit queue 0 timed
>      out
>      [  149.735537] Modules linked in: ip6t_REJECT nf_conntrack_ipv6
>      nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 ip6table_filter xt_state
>      ip6_tables nf_conntrack 81
>      39too 8139cp ppdev parport_pc mii parport i2c_piix4 i2c_core joydev
>      [last unloaded: scsi_wait_scan]
>      [  149.768028] Pid: 0, comm: swapper Not tainted 3.1.0-5.fc16.x86_64 #1
>      [  149.774639] Call Trace:
>      [  149.777765]  <IRQ>  [<ffffffff81057a56>]
>      warn_slowpath_common+0x83/0x9b
>      [  149.784024]  [<ffffffff81057b11>] warn_slowpath_fmt+0x46/0x48
>      [  149.790141]  [<ffffffff813ef49d>] ? netif_tx_lock+0x4a/0x7c
>      [  149.799007]  [<ffffffff813ef613>] dev_watchdog+0xf0/0x150
>      [  149.806361]  [<ffffffff81064b51>] run_timer_softirq+0x19b/0x280
>      [  149.814392]  [<ffffffff81014fec>] ? sched_clock+0x9/0xd
>      [  149.821650]  [<ffffffff813ef523>] ? netif_tx_unlock+0x54/0x54
>      [  149.828926]  [<ffffffff8105d6b3>] __do_softirq+0xc9/0x1b5
>      [  149.836803]  [<ffffffff81014fec>] ? sched_clock+0x9/0xd
>      [  149.843422]  [<ffffffff814be5ec>] call_softirq+0x1c/0x30
>      [  149.850067]  [<ffffffff81010b45>] do_softirq+0x46/0x81
>      [  149.856760]  [<ffffffff8105d97b>] irq_exit+0x57/0xb1
>      [  149.863035]  [<ffffffff812a39d3>] xen_evtchn_do_upcall+0x31/0x3e
>      [  149.871144]  [<ffffffff814be76e>] xen_hvm_callback_vector+0x6e/0x80
>      [  149.879494]  <EOI>  [<ffffffff8102f2f1>] ? native_safe_halt+0xb/0xd
>      [  149.888220]  [<ffffffff81015b7e>] default_idle+0x4e/0x86
>      [  149.894962]  [<ffffffff8100e2ed>] cpu_idle+0xae/0xe8
>      [  149.901461]  [<ffffffff814934ee>] rest_init+0x72/0x74
>      [  149.908949]  [<ffffffff81b76b7d>] start_kernel+0x3ab/0x3b6
>      [  149.916617]  [<ffffffff81b762c4>] x86_64_start_reservations+0xaf/0xb3
>      [  149.929148]  [<ffffffff81b76140>] ? early_idt_handlers+0x140/0x140
>      [  149.936797]  [<ffffffff81b763ca>] x86_64_start_kernel+0x102/0x111
>      [  149.944336] ---[ end trace d8786cb7d6a57f8a ]---
>      [  149.950406] 8139cp 0000:00:03.0: eth0: Transmit timeout, status
>      d   3b   15 80ff
>      [  149.961879] ------------[ cut here ]------------
>      [  149.962245] WARNING: at kernel/softirq.c:159
>      _local_bh_enable_ip+0x44/0x8e()
>      [  149.962245] Hardware name: HVM domU
>      [  149.962245] Modules linked in: ip6t_REJECT nf_conntrack_ipv6
>      nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 ip6table_filter xt_state
>      ip6_tables nf_conntrack 8139too 8139cp ppdev parport_pc mii parport
>      i2c_piix4 i2c_core joydev [last unloaded: scsi_wait_scan]
>      [  149.962245] Pid: 0, comm: swapper Tainted: G
>      W   3.1.0-5.fc16.x86_64 #1
>      [  149.962245] Call Trace:
>      [  149.962245]  <IRQ>  [<ffffffff81057a56>]
>      warn_slowpath_common+0x83/0x9b
>      [  149.962245]  [<ffffffff813ce599>] ? skb_release_data+0xca/0xcf
>      [  149.962245]  [<ffffffff81057a88>] warn_slowpath_null+0x1a/0x1c
>      [  149.962245]  [<ffffffff8105d462>] _local_bh_enable_ip+0x44/0x8e
>      [  149.962245]  [<ffffffff8105d4ba>] local_bh_enable_ip+0xe/0x10
>      [  149.962245]  [<ffffffff814b5db4>] _raw_spin_unlock_bh+0x15/0x17
>      [  149.962245]  [<ffffffffa0053969>] destroy_conntrack+0x9d/0xdc
>      [nf_conntrack]
>      [  149.962245]  [<ffffffff813fa343>] nf_conntrack_destroy+0x19/0x1b
>      [  149.962245]  [<ffffffff813ce7ad>] skb_release_head_state+0xa7/0xef
>      [  149.962245]  [<ffffffff813ce5b1>] __kfree_skb+0x13/0x83
>      [  149.962245]  [<ffffffff813ce677>] consume_skb+0x56/0x6b
>      [  149.962245]  [<ffffffffa003c1b9>] cp_clean_rings+0xb4/0x114 [8139cp]
>      [  149.962245]  [<ffffffffa003c371>] cp_tx_timeout+0x88/0x10e [8139cp]
>      [  149.962245]  [<ffffffff813ef627>] dev_watchdog+0x104/0x150
>      [  149.962245]  [<ffffffff81064b51>] run_timer_softirq+0x19b/0x280
>      [  149.962245]  [<ffffffff81014fec>] ? sched_clock+0x9/0xd
>      [  149.962245]  [<ffffffff813ef523>] ? netif_tx_unlock+0x54/0x54
>      [  149.962245]  [<ffffffff8105d6b3>] __do_softirq+0xc9/0x1b5
>      [  149.962245]  [<ffffffff81014fec>] ? sched_clock+0x9/0xd
>      [  149.962245]  [<ffffffff814be5ec>] call_softirq+0x1c/0x30
>      [  149.962245]  [<ffffffff81010b45>] do_softirq+0x46/0x81
>      [  149.962245]  [<ffffffff8105d97b>] irq_exit+0x57/0xb1
>      [  149.962245]  [<ffffffff812a39d3>] xen_evtchn_do_upcall+0x31/0x3e
>      [  149.962245]  [<ffffffff814be76e>] xen_hvm_callback_vector+0x6e/0x80
>      [  149.962245]  <EOI>  [<ffffffff8102f2f1>] ? native_safe_halt+0xb/0xd
>      [  149.962245]  [<ffffffff81015b7e>] default_idle+0x4e/0x86
>      [  149.962245]  [<ffffffff8100e2ed>] cpu_idle+0xae/0xe8
>      [  149.962245]  [<ffffffff814934ee>] rest_init+0x72/0x74
>      [  149.962245]  [<ffffffff81b76b7d>] start_kernel+0x3ab/0x3b6
>      [  149.962245]  [<ffffffff81b762c4>] x86_64_start_reservations+0xaf/0xb3
>      [  149.962245]  [<ffffffff81b76140>] ? early_idt_handlers+0x140/0x140
>      [  149.962245]  [<ffffffff81b763ca>] x86_64_start_kernel+0x102/0x111
>      [  149.962245] ---[ end trace d8786cb7d6a57f8b ]---
> 
>      Full guest kernel dmesg attached to this email.
>      The host is running F16 with Xen 4.1.2 and Linux 3.1.0 dom0 kernel.
> 
>      Xen cfgfile for the HVM domain:
> 
>      kernel = "hvmloader"
>      builder='hvm'
>      device_model = 'qemu-dm'
>      name = "f16test64hvm"
>      memory = 1024
>      vcpus=1
>      pae=1
>      acpi=1
>      apic=1
>      vif = [ 'type=ioemu, mac=00:16:3f:03:01:14, bridge=virbr0' ]
>      disk = [ 'phy:/dev/vg_f16/f16test64hvm,hda,w',
>      'file:/root/iso/Fedora-16-Final-RC2-x86_64-DVD.iso,hdc:cdrom,r' ]
>      boot='cd'
>      xen_platform_pci=0
>      on_poweroff = 'destroy'
>      on_reboot   = 'restart'
>      on_crash    = 'restart'
>      sdl=0
>      vnc=1
>      vncpasswd=''
>      stdvga=0
>      serial='pty'
>      tsc_mode=0
>      usb=1
>      usbdevice='tablet'
>      keymap='fi'
> 
>      Using "model=e1000" instead for the vif works OK.. no problems with the
>      emulated intel nic.
> 
>      Any ideas what the problem with the emulated realtek nic?
> 
>      Thanks,
> 
>      -- Pasi
> 
>      -----Inline Attachment Follows-----
> 
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