Best posts made by delaf

@stormi
It seems to be good here!

@olivierlambert when changes are made (like IP change in the VM), it is now instantly reported by XO
I will be able to go back to my work to integrate a BGP deamon to announce locals IPs to the network (I started last year to work on the xe-deamon but never had the time to finish it, and some months after I saw you blog post about moving to rust for it).

Thank you!

PS: i'm using these 2 scripts to list all interfaces drivers version accross our servers :

$ cat get_network_drivers_info.sh
#!/bin/bash                                                                                                                                                                                                                                                                                                   

format="| %-13.13s | %-20.20s | %-20.20s | %-10.10s | %-7.7s | %-10.10s | %-30.30s | %-s \n"
printf "${format}" "date" "hostname" "OS" "interface" "driver" "version" "firmware" "yum"
printf "${format}" "----------------------------" "----------------------------" "----------------------------" "----------------------------" "----------------------------" "----------------------------" "----------------------------" "----------------------------"

if [ $# -gt 0 ]; then
    servers=($(echo ${BASH_ARGV[*]}))
else
    servers=($(cat host.json | jq -r '.[] | .address' | egrep -v "^192.168.124.9$"))
fi

for line in ${servers[@]}; do
    scp get_network_drivers_info.sh.tpl ${line}:/tmp/get_network_drivers_info.sh  > /dev/null 2>&1;
    ssh -n ${line} bash /tmp/get_network_drivers_info.sh 2> /dev/null;
    if [ $? -ne 0 ]; then
        echo "${line} fail" >&2
    fi
done

$ cat get_network_drivers_info.sh.tpl
#!/bin/bash                                                                                                                                                                                                                                                                                                   

format="| %-13.13s | %-20.20s | %-20.20s | %-10.10s | %-7.7s | %-10.10s | %-30.30s | %-s \n"
d=$(date '+%Y%m%d-%H%M')
name=$(hostname)
cd  /sys/class/net/
for interface in $(ls -l /sys/class/net/ | awk '/\/pci/ {print $9}'); do
    version=$(ethtool -i ${interface} | awk '/^version:/ {$1=""; print}')
    firmware=$(ethtool -i ${interface} | awk '/^firmware-version:/ {$1=""; print}')
    driver=$(ethtool -i ${interface} | awk '/^driver:/ {$1=""; print}')
    YUM=$(which yum)
    if [ $? -eq 0 ]; then
        packages=$(yum list installed | awk '/ixgbe/ {print $1"@"$2}' | tr '\n' ',')
    else
        packages="NA"
    fi
    os_version=$(lsb_release -d | awk '{$1=""} 1' | sed 's/XenServer/XS/; s/ (xenenterprise)//; s/release //')
    printf "${format}" "${d}" "${name}" "${os_version}" "${interface}" "${driver}" "${version}" "${firmware}" "${packages}"
done

PS: host.json file is generated via : xo-cli --list-objects type=host

@stormi Hello, some week after, I can confirm that the problem is solved here by using intel-ixgbe.x86_64@5.5.2-2.1.xcpng8.1 or intel-ixgbe.x86_64@5.5.2-2.1.xcpng8.2

@stormi I have installed intel-ixgbe 5.5.2-2.1.xcpng8.2 on my server s0267. Let's wait a some days to check if the memleak is solved by this patch.

@stormi

The 2 servers have been reinstalled with an up to date 8.2. They host each 2 VMs that are doing the same thing (~100Mb/s of netdata stream).

The right one has the 5.9.4-1.xcpng8.2, the left one has 5.5.2-2.xcpng8.2.

The patch seem to be OK for me.

@stormi

• server 266 with alt-kernel: still no problem.
  

• server 268 with 4.19.19-6.0.10.1.xcpng8.1: the problem has begun some days ago after some stable days.
  

• server 272 with 4.19.19-6.0.11.1.0.1.patch53disabled.xcpng8.1:
  )

• server 273 with 4.19.19-6.0.11.1.0.1.patch62disabled.xcpng8.1:
  

It seems that 4.19.19-6.0.11.1.0.1.patch62disabled.xcpng8.1 is more stable than 4.19.19-6.0.11.1.0.1.patch53disabled.xcpng8.1. But it is a but early to be sure.

@stormi For the kernel-4.19.19-6.0.10.1.xcpng8.1 test, i'm not sure it solve the problem because I get a small memory increase. We have to wait a bit more

@stormi I have installed the two kernels

272 ~]# yum list installed kernel | grep kernel
kernel.x86_64                   4.19.19-6.0.11.1.0.1.patch53disabled.xcpng8.1

273 ~]# yum list installed kernel | grep kernel
kernel.x86_64                   4.19.19-6.0.11.1.0.1.patch62disabled.xcpng8.1

I have removed the modification in /etc/modprobe.d/dist.conf on server 273.

We have to wait a little bit now

@stormi @r1
Four days later, I get:

• one server (266) with alt-kernel: still no problem
• one server (268) with 4.19.19-6.0.10.1.xcpng8.1: no more problem!
• one server (272) with kmemleak kernel: no memleak detected, but the problem is present
• one server (273) with search extra built-in weak-updates override updates: problem still present

@danp Thank you. I have downgraded one server.

@stormi So i have :

• one server with 4.19.19-6.0.10.1.xcpng8.1
• one server with kmemleak kernel
• one server with search extra built-in weak-updates override updates

@stormi I have a server with only search extra built-in weak-updates override updates. We will see if it is better.

@r1 installed and it works :

# dmesg | grep kmem
[    6.181218] kmemleak: Kernel memory leak detector initialized
[    6.181223] kmemleak: Automatic memory scanning thread started

I will check the leaks tomorrow.

Hello,

We have the same problem here on multiple servers.

We also have 10G interfaces. We use ext local SR.

(::bbxl0271) (2 running) [08:43 bbxl0271 ~]# lsmod  | sort -k 2 -n  -r
ipv6                  548864  313 nf_nat_ipv6
sunrpc                413696  18 lockd,nfsv3,nfs_acl,nfs
ixgbe                 380928  0
fscache               380928  1 nfs
nfs                   307200  2 nfsv3
libata                274432  2 libahci,ahci
xhci_hcd              258048  1 xhci_pci
scsi_mod              253952  15 fcoe,scsi_dh_emc,sd_mod,dm_multipath,scsi_dh_alua,scsi_transport_fc,usb_storage,libfc,bnx2fc,uas,megaraid_sas,libata,sg,scsi_dh_rdac,scsi_dh_hp_sw
aesni_intel           200704  0
megaraid_sas          167936  4
nf_conntrack          163840  6 xt_conntrack,nf_nat,nf_nat_ipv6,nf_nat_ipv4,openvswitch,nf_conncount
bnx2fc                159744  0
dm_mod                151552  5 dm_multipath
openvswitch           147456  12
libfc                 147456  3 fcoe,bnx2fc,libfcoe
hid                   122880  2 usbhid,hid_generic
mei                   114688  1 mei_me
lockd                 110592  2 nfsv3,nfs
cnic                   81920  1 bnx2fc
libfcoe                77824  2 fcoe,bnx2fc
usb_storage            73728  1 uas
scsi_transport_fc      69632  3 fcoe,libfc,bnx2fc
ipmi_si                65536  0
ipmi_msghandler        61440  2 ipmi_devintf,ipmi_si
usbhid                 57344  0
sd_mod                 53248  5
tun                    49152  0
nfsv3                  49152  1
x_tables               45056  6 xt_conntrack,iptable_filter,xt_multiport,xt_tcpudp,ipt_REJECT,ip_tables
mei_me                 45056  0
sg                     40960  0
libahci                40960  1 ahci
ahci                   40960  0
8021q                  40960  0
nf_nat                 36864  3 nf_nat_ipv6,nf_nat_ipv4,openvswitch
fcoe                   32768  0
dm_multipath           32768  0
uas                    28672  0
lpc_ich                28672  0
ip_tables              28672  2 iptable_filter
i2c_i801               28672  0
cryptd                 28672  3 crypto_simd,ghash_clmulni_intel,aesni_intel
uio                    20480  1 cnic
scsi_dh_alua           20480  0
nf_defrag_ipv6         20480  2 nf_conntrack,openvswitch
mrp                    20480  1 8021q
ipmi_devintf           20480  0
aes_x86_64             20480  1 aesni_intel
acpi_power_meter       20480  0
xt_tcpudp              16384  9
xt_multiport           16384  1
xt_conntrack           16384  5
xhci_pci               16384  0
stp                    16384  1 garp
skx_edac               16384  0
scsi_dh_rdac           16384  0
scsi_dh_hp_sw          16384  0
scsi_dh_emc            16384  0
pcbc                   16384  0
nsh                    16384  1 openvswitch
nfs_acl                16384  1 nfsv3
nf_reject_ipv4         16384  1 ipt_REJECT
nf_nat_ipv6            16384  1 openvswitch
nf_nat_ipv4            16384  1 openvswitch
nf_defrag_ipv4         16384  1 nf_conntrack
nf_conncount           16384  1 openvswitch
llc                    16384  2 stp,garp
libcrc32c              16384  3 nf_conntrack,nf_nat,openvswitch
ipt_REJECT             16384  3
iptable_filter         16384  1
intel_rapl_perf        16384  0
intel_powerclamp       16384  0
hid_generic            16384  0
grace                  16384  1 lockd
glue_helper            16384  1 aesni_intel
ghash_clmulni_intel    16384  0
garp                   16384  1 8021q
crypto_simd            16384  1 aesni_intel
crct10dif_pclmul       16384  0
crc_ccitt              16384  1 ipv6
crc32_pclmul           16384  0

I'll install the kmemleak kernel on one server today.