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 (
mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (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_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
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