Kernel Panic

[rahs]

IBM BladeCenter HS22 -[7870H2G]-

After kernel version pve-kernel-2.6.32-13-pve kernel panic after any network activity (e.q. upload iso image)

pve-kernel-2.6.32-11-pve - works fine
pve-kernel-2.6.32-12-pve - works fine
pve-kernel-2.6.32-13-pve - works fine
pve-kernel-2.6.32-14-pve - kernel panic
pve-kernel-2.6.32-16-pve - kernel panic
pve-kernel-2.6.32-17-pve - kernel panic

pveversion -v
pve-manager: 2.2-32 (pve-manager/2.2/3089a616)
running kernel: 2.6.32-13-pve
proxmox-ve-2.6.32: 2.2-83
pve-kernel-2.6.32-11-pve: 2.6.32-66
pve-kernel-2.6.32-16-pve: 2.6.32-82
pve-kernel-2.6.32-13-pve: 2.6.32-72
pve-kernel-2.6.32-12-pve: 2.6.32-68
pve-kernel-2.6.32-14-pve: 2.6.32-74
pve-kernel-2.6.32-17-pve: 2.6.32-83
lvm2: 2.02.95-1pve2
clvm: 2.02.95-1pve2
corosync-pve: 1.4.4-1
openais-pve: 1.1.4-2
libqb: 0.10.1-2
redhat-cluster-pve: 3.1.93-2
resource-agents-pve: 3.9.2-3
fence-agents-pve: 3.1.9-1
pve-cluster: 1.0-34
qemu-server: 2.0-72
pve-firmware: 1.0-21
libpve-common-perl: 1.0-41
libpve-access-control: 1.0-25
libpve-storage-perl: 2.0-36
vncterm: 1.0-3
vzctl: 4.0-1pve2
vzprocps: 2.0.11-2
vzquota: 3.1-1
pve-qemu-kvm: 1.3-10
ksm-control-daemon: 1.1-1

lspci
00:00.0 Host bridge: Intel Corporation 5520 I/O Hub to ESI Port (rev 22)
00:01.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 1 (rev 22)
00:03.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 3 (rev 22)
00:05.0 PCI bridge: Intel Corporation 5520/X58 I/O Hub PCI Express Root Port 5 (rev 22)
00:07.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 7 (rev 22)
00:08.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 8 (rev 22)
00:09.0 PCI bridge: Intel Corporation 7500/5520/5500/X58 I/O Hub PCI Express Root Port 9 (rev 22)
00:10.0 PIC: Intel Corporation 7500/5520/5500/X58 Physical and Link Layer Registers Port 0 (rev 22)
00:10.1 PIC: Intel Corporation 7500/5520/5500/X58 Routing and Protocol Layer Registers Port 0 (rev 22)
00:11.0 PIC: Intel Corporation 7500/5520/5500 Physical and Link Layer Registers Port 1 (rev 22)
00:11.1 PIC: Intel Corporation 7500/5520/5500 Routing & Protocol Layer Register Port 1 (rev 22)
00:14.0 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub System Management Registers (rev 22)
00:14.1 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub GPIO and Scratch Pad Registers (rev 22)
00:14.2 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub Control Status and RAS Registers (rev 22)
00:14.3 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub Throttle Registers (rev 22)
00:15.0 PIC: Intel Corporation 7500/5520/5500/X58 Trusted Execution Technology Registers (rev 22)
00:16.0 System peripheral: Intel Corporation 5520/5500/X58 Chipset QuickData Technology Device (rev 22)
00:16.1 System peripheral: Intel Corporation 5520/5500/X58 Chipset QuickData Technology Device (rev 22)
00:16.2 System peripheral: Intel Corporation 5520/5500/X58 Chipset QuickData Technology Device (rev 22)
00:16.3 System peripheral: Intel Corporation 5520/5500/X58 Chipset QuickData Technology Device (rev 22)
00:16.4 System peripheral: Intel Corporation 5520/5500/X58 Chipset QuickData Technology Device (rev 22)
00:16.5 System peripheral: Intel Corporation 5520/5500/X58 Chipset QuickData Technology Device (rev 22)
00:16.6 System peripheral: Intel Corporation 5520/5500/X58 Chipset QuickData Technology Device (rev 22)
00:16.7 System peripheral: Intel Corporation 5520/5500/X58 Chipset QuickData Technology Device (rev 22)
00:1a.0 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4
00:1a.7 USB controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2
00:1c.0 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 1
00:1c.4 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 5
00:1d.0 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1
00:1d.1 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2
00:1d.2 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3
00:1d.7 USB controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
00:1f.0 ISA bridge: Intel Corporation 82801JIB (ICH10) LPC Interface Controller
00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller
06:00.0 PCI bridge: Vitesse Semiconductor VSC452 [SuperBMC] (rev 01)
07:00.0 VGA compatible controller: Matrox Electronics Systems Ltd. MGA G200EV
0b:00.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1064ET PCI-Express Fusion-MPT SAS (rev 10)
10:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709S Gigabit Ethernet (rev 20)
10:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709S Gigabit Ethernet (rev 20)
15:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM57711 10-Gigabit PCIe
15:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM57711 10-Gigabit PCIe
24:00.0 Fibre Channel: Emulex Corporation Saturn-X: LightPulse Fibre Channel Host Adapter (rev 03)
24:00.1 Fibre Channel: Emulex Corporation Saturn-X: LightPulse Fibre Channel Host Adapter (rev 03)

 

[mo_]

if your "lsmod|grep bnx" also displays bnx2x as the loaded module, then welcome to the club :/

https://forum.proxmox.com/threads/11317-Kernel-Panic-on-Blade-BL460cG6?p=67919

Whats great about your post is that you managed to grab the complete kernel panic text. something I have yet to accomplish (damn HP ilo consoles not letting you scroll back once the offending machine crashes)


EDITED TO ADD: Im no kernel expert by any stretch of the imagination, but I noticed that both your logs say "last unloaded scsi_wait_scan"

 

[rahs]

if your "lsmod|grep bnx" also displays bnx2x as the loaded module, then welcome to the club :/

I tried to compile the driver from source - no effect

 

[adamb]

This should get you going. I had the same issues. Good luck!

http://forum.proxmox.com/threads/12064-DRBD-Assistance

Start at post 11 and work down. Original topic was on DRBD, but ended up being the bnx2x drivers.

 

[mo_]

as requested in the DRBD thread linked above this post I am bumping this topic.

To sum it up: the bnx2x drivers shipped with proxmox cause random kernel panics whenever network traffic occurs. A fix that was suggested in the DRBD thread was to compile a much more recent driver version.

Somebody of the staff had said in another thread that there were issues with newer versions of the driver as they tested them - what issues where those? I would like to specifically test for them with the new drivers linked in the DRBD thread.

 

[adamb]

as requested in the DRBD thread linked above this post I am bumping this topic.

To sum it up: the bnx2x drivers shipped with proxmox cause random kernel panics whenever network traffic occurs. A fix that was suggested in the DRBD thread was to compile a much more recent driver version.

Somebody of the staff had said in another thread that there were issues with newer versions of the driver as they tested them - what issues where those? I would like to specifically test for them with the new drivers linked in the DRBD thread.

Just to add, I have been running the latest version for over a month now with no issues.

 

[tom]

We have no such NIC here in our lab so we cannot test and debug it here.

Also no customer have such a system (with this problem) so we had no change to dig deeper here.

 

[spirit]

Hi Guys,

Not sure it's related (it's more a performance problem ) but I have found a bug on redhat bugzilla
https://bugzilla.redhat.com/show_bug.cgi?id=773675

Disable LRO for all NICs that have LRO enabled
"A serious performance problem occurs when running using a bond and a bridge on top of NICs that use LRO. LRO should get disabled automatically when the NIC is added to a bridge but this doesn't work right when there is a bond in between. This patch disables LRO on all nics.+Previously, when an NIC was added to a bridge LRO would not automatically be disabled if a bond was also present. The use of a bond and a bridge on top of NICs using LRO presented serious performance degradation. This update ensures that LRO is disabled on all NICs, avoiding this performance degradation issue."

echo "options bnx2x disable_tpa=1" > /etc/modprobe.d/bnx2x.conf
echo "options mlx4_en num_lro=0" > /etc/modprobe.d/mlx4_en.conf
echo "options enic lro_disable=1" > /etc/modprobe.d/enic.conf
echo "options s2io lro=0" > /etc/modprobe.d/s2io.conf

then reboot

Does it help ?

 

[adoII]

To sum it up: the bnx2x drivers shipped with proxmox cause random kernel panics whenever network traffic occurs. A fix that was suggested in the DRBD thread was to compile a much more recent driver version.

I can also confirm the proxmox Bug with bnx2x hardware.
Bought a new server hardware, installed proxmox and it crashes twice a day

 

[tom]

Post details about your hardware.

And upgrade the driver and report if the issue is fixed with the new bnx2x driver.

 

[jo_]

Hello,

I can also confirm the proxmox Bug with bnx2x hardware.
Bought a new server hardware, installed proxmox and it crashes twice a day

Same problem here.
New hardware, installed Proxmox 2.2 from latest ISO
Trying "apt-get upgrade" crashes the server os (reproducible)

After rebooting network does not work at all (with driver loaded)
Have to ifdown/ifup eth<x> from console to activate network

The hint from spirit (posting #12) regarding LRO has no effect at my system.

Hardware: HP C7000 with BL460C Gen8 servers

network driver bnx2x, version: 1.72.00-0 (quiet old)
firmware-version: bc 7.0.49
bus-info: 0000:04:00.2


With kind regards

Jo_

 

[jo_]

double post deleted

Jo_

 

[adamb]

Everyone should have no issues with the latest driver from broadcom. Mine has been working great!

 

[adoII]

Hi,

i use a Supermicro Motherboard X9DRW-7/iTPF with 10GBE onboard
lspci says:

05:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM57810 10 Gigabit Ethernet (rev 11)
05:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM57810 10 Gigabit Ethernet (rev 11)

Today I compiled and installed the current Broadcom Drivers.
I now have the following versions:

root@san05:~# ethtool -i eth0
driver: bnx2x
version: 1.72.00-0
firmware-version: bc 7.4.19
bus-info: 0000:05:00.0

Now the System survives high network traffic for 5 minutes. With the older driver the system died after about 2 minutes.

I also have warnings in the kernel log before the system crashes:

------------[ cut here ]------------
WARNING: at kernel/bc/net.c:315 ub_sock_tcp_chargerecv+0xd8/0x220() (Tainted: G W --------------- )
Hardware name: X9DRW-7/iTPF
Modules linked in: vzethdev vznetdev pio_nfs pio_direct pfmt_raw pfmt_ploop1 ploop simfs vzrst nf_nat vzcpt vzdquota vzmon vzdev ip6t_REJECT ip6table_mangle ip6table_filter ip6_tables xt_length xt_hl xt_tcpmss xt_TCPMSS iptable_mangle xt_limit vhost_net macvtap xt_dscp macvlan tun ipt_REJECT kvm_intel kvm dlm configfs xt_multiport xt_pkttype nf_conntrack_ftp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables vzevent ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi fuse scsi_transport_iscsi nfsd nfs lockd fscache nfs_acl auth_rpcgss sunrpc bonding ipv6 8021q garp snd_pcsp snd_pcm snd_timer tpm_tis tpm tpm_bios snd soundcore snd_page_alloc sb_edac i2c_i801 edac_core i2c_core ioatdma acpi_pad wmi shpchp ext3 jbd mbcache sg igb dca isci libsas scsi_transport_sas ahci bnx2x megaraid_sas mdio [last unloaded: scsi_wait_scan]
Pid: 6014, comm: dd veid: 0 Tainted: G W --------------- 2.6.32-17-pve #1
Call Trace:
<IRQ> [<ffffffff8106cf88>] ? warn_slowpath_common+0x88/0xc0
[<ffffffff8106cfda>] ? warn_slowpath_null+0x1a/0x20
[<ffffffff810afa58>] ? ub_sock_tcp_chargerecv+0xd8/0x220
[<ffffffff810afc50>] ? ub_sockrcvbuf_charge+0xb0/0xc0
[<ffffffff814abefc>] ? tcp_try_rmem_schedule+0x5c/0x380
[<ffffffff814ac3c6>] ? tcp_data_queue+0x1a6/0xc80
[<ffffffffa0589205>] ? ipt_do_table+0x2c5/0x6b0 [ip_tables]
[<ffffffff814ab9cb>] ? tcp_validate_incoming+0x30b/0x3a0
[<ffffffff814af6f9>] ? tcp_rcv_established+0x3b9/0x890
[<ffffffff814b7edb>] ? tcp_v4_do_rcv+0x31b/0x470
[<ffffffffa05c45ca>] ? ipv4_confirm+0x8a/0x1e0 [nf_conntrack_ipv4]
[<ffffffff814ba60e>] ? tcp_v4_rcv+0x50e/0x8f0
[<ffffffff81495f30>] ? ip_local_deliver_finish+0x0/0x310
[<ffffffff8149604c>] ? ip_local_deliver_finish+0x11c/0x310
[<ffffffff814962d0>] ? ip_local_deliver+0x90/0xa0
[<ffffffff8149573d>] ? ip_rcv_finish+0x12d/0x440
[<ffffffff81495cd4>] ? ip_rcv+0x284/0x370
[<ffffffff8145c8db>] ? __netif_receive_skb+0x33b/0x750
[<ffffffff814b69ba>] ? tcp4_gro_receive+0x5a/0xe0
[<ffffffff8145ef18>] ? netif_receive_skb+0x58/0x60
[<ffffffff8145f030>] ? napi_skb_finish+0x50/0x70
[<ffffffff81461729>] ? napi_gro_receive+0x39/0x50
[<ffffffffa00579c6>] ? bnx2x_rx_int+0x9b6/0x17d0 [bnx2x]
[<ffffffff8145183e>] ? __kfree_skb+0x1e/0xa0
[<ffffffff814518fb>] ? consume_skb+0x3b/0x80
[<ffffffff8145d345>] ? dev_kfree_skb_any+0x45/0x50
[<ffffffffa00532bd>] ? bnx2x_free_tx_pkt+0x19d/0x2a0 [bnx2x]
[<ffffffffa00532bd>] ? bnx2x_free_tx_pkt+0x19d/0x2a0 [bnx2x]
[<ffffffffa005006a>] ? bnx2x_8726_config_init+0x12a/0x3c0 [bnx2x]
[<ffffffffa005889c>] ? bnx2x_poll+0xbc/0x300 [bnx2x]
[<ffffffff81461843>] ? net_rx_action+0x103/0x2e0
[<ffffffff81075dc3>] ? __do_softirq+0x103/0x260
[<ffffffff81080095>] ? get_next_timer_interrupt+0x1b5/0x260
[<ffffffff8100c30c>] ? call_softirq+0x1c/0x30
[<ffffffff8100df35>] ? do_softirq+0x65/0xa0
[<ffffffff81075bed>] ? irq_exit+0xcd/0xd0
[<ffffffff81530595>] ? do_IRQ+0x75/0xf0
[<ffffffff8100bb13>] ? ret_from_intr+0x0/0x11
<EOI> [<ffffffff81138033>] ? __alloc_pages_nodemask+0x1e3/0xb80
[<ffffffff811251e1>] ? file_read_iter_actor+0x61/0x80
[<ffffffff8100bb0e>] ? common_interrupt+0xe/0x13
[<ffffffff81177643>] ? policy_nodemask+0x13/0x50
[<ffffffff8117a44a>] ? alloc_pages_current+0xaa/0x120
[<ffffffff811a0edc>] ? pipe_write+0x35c/0x640
[<ffffffff8119648a>] ? do_sync_write+0xfa/0x140
[<ffffffff81096b50>] ? autoremove_wake_function+0x0/0x40
[<ffffffff8100bb0e>] ? common_interrupt+0xe/0x13
[<ffffffff81196768>] ? vfs_write+0xb8/0x1a0
[<ffffffff81198155>] ? fget_light+0x45/0xa0
[<ffffffff81197181>] ? sys_write+0x51/0x90
[<ffffffff8100b182>] ? system_call_fastpath+0x16/0x1b
---[ end trace 8766522261194a0b ]---

So the problem seems not to be solved.
Do you have the same driver versions that I have ?

 

[adamb]

Hi,

i use a Supermicro Motherboard X9DRW-7/iTPF with 10GBE onboard
lspci says:

Today I compiled and installed the current Broadcom Drivers.
I now have the following versions:


Now the System survives high network traffic for 5 minutes. With the older driver the system died after about 2 minutes.

I also have warnings in the kernel log before the system crashes:


So the problem seems not to be solved.
Do you have the same driver versions that I have ?

The current version is 1.72.00. You did something wrong. 1.72.18 is what you want.

Last login: Fri Jan 18 13:05:10 2013 from 10.80.8.112
root@fiosprox1:~# ethtool -i eth0
driver: bnx2x
version: 1.72.18
firmware-version: bc 6.2.15 phy 4.f
bus-info: 0000:20:00.0

 

[mo_]

I installed the driver from http://forum.proxmox.com/threads/12064-DRBD-Assistance?p=66039#post66039

then did aptitude dist-upgrade and it did not crash! (which it did before - reliably)

There was one caveat I had to overcome, that others may experience too:

As I said before, the kernel would reliably panic whenever I tried to install anything with apt. Oddly enough, wget'ing the VERY SAME PACKAGE works just fine, so I had to get build-essential and the headers without downloading through apt. heres how I did that:

apt-get -y --print-uris --no-download install build-essential|egrep -o -e "http.*\.deb'"|sed -r "s/'//g"|xargs wget
wget ftp://download.proxmox.com/debian/dists/squeeze/pve/binary-amd64/pve-headers-2.6.32-17-pve_2.6.32-83_amd64.deb
dpkg -i ./*.deb

Since the aforementioned dist-upgrade finished without issues I will consider this driver working fine for now. Will report back in a week or if anything bad happens

 

[adoII]

The current version is 1.72.00. You did something wrong. 1.72.18 is what you want.

Last login: Fri Jan 18 13:05:10 2013 from 10.80.8.112
root@fiosprox1:~# ethtool -i eth0
driver: bnx2x
version: 1.72.18
firmware-version: bc 6.2.15 phy 4.f
bus-info: 0000:20:00.0

You were right, something must have been gone wrong.

I now installed the current January Driver from: http://www.broadcom.com/support/ethernet_nic/netxtremeii10.php

It identifies as:

driver: bnx2x
version: 1.74.22
firmware-version: bc 7.4.19
bus-info: 0000:05:00.0

And the system seems to be stable now.

 

[mo_]

Will report back in a week or if anything bad happens

Reporting back: system with the new drivers is working flawlessly

 

[rahs]

Thanks for you reply

This options does not solve the problem with kernel panic
May be useful later

 

[rahs]

I just upgraded to pvetest

Appears to be stable, the kernel panic is not repeated, but the network load in guests OS, syslog the host system clogged messages

Feb 7 14:36:59 dc-bs1-05 kernel: ------------[ cut here ]------------
Feb 7 14:36:59 dc-bs1-05 kernel: WARNING: at net/core/dev.c:1700 skb_gso_segment+0x1e2/0x2c0() (Tainted: G W --------------- )
Feb 7 14:36:59 dc-bs1-05 kernel: Hardware name: BladeCenter HS22 -[7870H2G]-
Feb 7 14:36:59 dc-bs1-05 kernel: tun: caps=(0x80000000, 0x0) len=5844 data_len=4344 ip_summed=1
Feb 7 14:36:59 dc-bs1-05 kernel: Modules linked in: vzethdev vznetdev pio_nfs pio_direct pfmt_raw pfmt_ploop1 ploop simfs vzrst nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 vzcpt nfs lockd fscache nfs_acl
auth_rpcgss sunrpc nf_conntrack vzdquota vzmon vzdev ip6t_REJECT ip6table_mangle ip6table_filter ip6_tables xt_length xt_hl xt_tcpmss xt_TCPMSS iptable_mangle iptable_filter xt_multiport xt_limit xt_ds
cp vhost_net macvtap macvlan tun ipt_REJECT kvm_intel ip_tables kvm dlm configfs vzevent fuse bonding ipv6 8021q garp snd_pcsp cdc_ether i2c_i801 snd_pcm snd_timer snd usbnet mii soundcore i2c_core i7c
ore_edac ioatdma serio_raw dca tpm_tis edac_core snd_page_alloc shpchp tpm tpm_bios ext3 jbd mbcache dm_round_robin dm_multipath mptsas lpfc mptscsih scsi_transport_fc mptbase scsi_tgt bnx2x mdio bnx2
scsi_transport_sas [last unloaded: scsi_wait_scan]
Feb 7 14:36:59 dc-bs1-05 kernel: Pid: 2218, comm: rsyslogd veid: 0 Tainted: G W --------------- 2.6.32-18-pve #1
Feb 7 14:36:59 dc-bs1-05 kernel: Call Trace:
Feb 7 14:36:59 dc-bs1-05 kernel: <IRQ> [<ffffffff8106d228>] ? warn_slowpath_common+0x88/0xc0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8106d316>] ? warn_slowpath_fmt+0x46/0x50
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff814ee379>] ? br_flood+0xb9/0xe0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff81453912>] ? skb_gso_segment+0x1e2/0x2c0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff81447e92>] ? kfree_skb+0x42/0x90
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8145823e>] ? dev_hard_start_xmit+0x19e/0x510
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff814532ee>] ? __netif_receive_skb+0x45e/0x750
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8147314a>] ? sch_direct_xmit+0x15a/0x1d0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff81458ac8>] ? dev_queue_xmit+0x518/0x730
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff814ee440>] ? br_dev_queue_push_xmit+0x60/0xc0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff814ee4f8>] ? br_forward_finish+0x58/0x60
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff814ee59a>] ? __br_forward+0x9a/0xc0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff814ee625>] ? br_forward+0x65/0x70
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff814ef5e1>] ? br_handle_frame_finish+0x221/0x300
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff814ef882>] ? br_handle_frame+0x1c2/0x270
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff814532ee>] ? __netif_receive_skb+0x45e/0x750
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8145367a>] ? process_backlog+0x9a/0x100
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff81457aa3>] ? net_rx_action+0x103/0x2e0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff81076063>] ? __do_softirq+0x103/0x260
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8100c2ac>] ? call_softirq+0x1c/0x30
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8100def5>] ? do_softirq+0x65/0xa0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff81075e8d>] ? irq_exit+0xcd/0xd0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff81524935>] ? do_IRQ+0x75/0xf0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8100ba93>] ? ret_from_intr+0x0/0x11
Feb 7 14:36:59 dc-bs1-05 kernel: <EOI> [<ffffffff8106f0d0>] ? do_syslog+0x200/0x680
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8106f0f3>] ? do_syslog+0x223/0x680
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff81096bc0>] ? autoremove_wake_function+0x0/0x40
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8120d912>] ? kmsg_read+0x32/0x60
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff81201b7e>] ? proc_reg_read+0x7e/0xc0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff811986a5>] ? vfs_read+0xb5/0x1a0
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff811987e1>] ? sys_read+0x51/0x90
Feb 7 14:36:59 dc-bs1-05 kernel: [<ffffffff8100b102>] ? system_call_fastpath+0x16/0x1b
Feb 7 14:36:59 dc-bs1-05 kernel: ---[ end trace c7e0d04e5163ea6e ]---

10 minutes syslog up to 400 MB!!!

# pveversion -v
pve-manager: 2.3-7 (pve-manager/2.3/1fe64d18)
running kernel: 2.6.32-18-pve
proxmox-ve-2.6.32: 2.3-88
pve-kernel-2.6.32-18-pve: 2.6.32-88
pve-kernel-2.6.32-17-pve: 2.6.32-83
lvm2: 2.02.95-1pve2
clvm: 2.02.95-1pve2
corosync-pve: 1.4.4-4
openais-pve: 1.1.4-2
libqb: 0.10.1-2
redhat-cluster-pve: 3.1.93-2
resource-agents-pve: 3.9.2-3
fence-agents-pve: 3.1.9-1
pve-cluster: 1.0-36
qemu-server: 2.3-8
pve-firmware: 1.0-21
libpve-common-perl: 1.0-44
libpve-access-control: 1.0-25
libpve-storage-perl: 2.3-2
vncterm: 1.0-3
vzctl: 4.0-1pve2
vzprocps: not correctly installed
vzquota: 3.1-1
pve-qemu-kvm: 1.3-18
ksm-control-daemon: 1.1-1

# ethtool -i eth0
driver: bnx2x
version: 1.74.22
firmware-version: bc 6.2.22
bus-info: 0000:15:00.0

The load on the network directly on the host system does not cause problems!