ifup eth0 SIOCSIFFLAGS: Cannot allocate memory Failed to bring up eth0 Centos Network won't work after kernel update and reboot -

ifup eth0 SIOCSIFFLAGS: Cannot allocate memory Failed to bring up eth0 Centos Network won't work after kernel update and reboot

ifup eth0
SIOCSIFFLAGS: Cannot allocate memory
Failed to bring up eth0

This is on a Centos 5.5 machine with OpenVZ kernel 2.6.18-238.12.1.el5.028stab091.1PAE, I updated 3 systems with the same hardware to the same kernel and for some reason the network didn't come back.

This only happened once the first time I booted into the new kernel and hasn't happened again but this is a serious issue for those running systems from remote locations such as a datacenters.

I believe rebooting is what fixed everything or possibly removing and reloading the kernel module for the NIC.


This may be a sign of a bad motherboard or power supply, eventually the related system just wouldn't come back after a reboot and would not power up at all.  Further, before the system died weird and random things happened with grub needing to be reinstalled after being corrupted etc...


  • LG Phoenix 2 Escape Disable AT&T Phonebook/Contacts Error Message
  • mdadm frozen and doesn't realize array is dead/missing failed due to unplugged drives
  • Unable to mount location Failed to retrieve share list from server: No such file or directory solution
  • mdadm how to make inactive array active
  • ImageMagick how to trim white space automatically in Linux
  • curl: (1) Protocol "https not supported or disabled in libcurl"
  • Centos 5 OpenSSL does not support TLS 1.2 Apache Error
  • DRBD Split-brain solution
  • How to Properly Secure SSL/TLS Apache Settings against Heartbleed Poodle (TLS) Poodle (SSLv3) FREAK BEAST CRIME
  • K9 Mail Android Cannot See or View E-mails Disappear after reading - with Dovecot server. Solution
  • The folder contents could not be displayed connection refused - solution
  • Setting Up System for First Use... Please Wait... - WHMCS Installer
  • ERROR 2013 (HY000): Lost connection to MySQL server during query
  • if script bash check if socket file (mysql.sock) exists
  • ioncube loader install howto on PHP/Centos
  • apc_shm_attach: shmat failed: in Unknown on line 0 & apc_shm_create: shmget(0, 67108864, 914) failed PHP Solution
  • MySQLD Server shutdown remotely unexpectedly
  • cPanel Install Error kernel ipv6 module support solution
  • bash count length of string and characters
  • PayPal Subscription Howto Creation Automatic Payments Manual