README

   1 KERNEL SOURCE:
   2 ==============
   3
   4 We currently use the Ubuntu kernel sources, available from:
   5
   6  http://kernel.ubuntu.com/git/ubuntu/ubuntu-vivid.git
   7
   8
   9 Additional/Updated Modules:
  10 ---------------------------
  11
  12 - include latest ixgbe driver from intel/sourceforge
  13
  14 - include latest igb driver from intel/sourceforge
  15
  16 # Note: hpsa does not compile with kernel 3.19.8
  17 #- include latest HPSA driver (HP Smart Array)
  18 #
  19 #  * http://sourceforge.net/projects/cciss/
  20
  21 - include native OpenZFS filesystem kernel modules for Linux
  22
  23   * https://github.com/zfsonlinux/
  24
  25   For licensing questions, see: http://open-zfs.org/wiki/Talk:FAQ
  26
  27 - include latest DRBD 9 driver, see http://drbd.linbit.com/home/what-is-drbd/
  28
  29
  30 FIRMWARE:
  31 =========
  32
  33 We create our own firmware package, which includes the firmware for
  34 all proxmox-ve kernels. So far this include
  35
  36 pve-kernel-2.6.18
  37 pve-kernel-2.6.24
  38 pve-kernel-2.6.32
  39 pve-kernel-3.10.0
  40 pve-kernel-3.19.0
  41
  42 We use 'find-firmware.pl' to extract lists of required firmeware
  43 files.  The script 'assemble-firmware.pl' is used to read those lists
  44 and copy the files from various source directory into a target
  45 directory.
  46
  47 We do not include firmeware for some wireless HW when there is a
  48 separate debian package for that, for example:
  49
  50 zd1211-firmware
  51 atmel-firmware
  52 bluez-firmware
  53
  54
  55 PATCHES:
  56 --------
  57
  58  bridge-patch.diff: Avoid bridge problems with changing MAC
  59   see also: http://forum.openvz.org/index.php?t=msg&th=5291
  60
  61   Behaviour after 2.6.27 has changed slighly - after setting mac address
  62   of bridge device, then address won't change. So we could omit
  63   that patch, requiring to set hwaddress in /etc/network/interfaces.
  64
  65
  66 Additional information
  67 ----------------------
  68
  69 We use the default configuration provided by Ubuntu, and apply
  70 the following modification:
  71
  72 see Makefile (PVE_CONFIG_OPTS)
  73
  74 - enable CONFIG_CEPH_FS=m (request from user)
  75
  76 - enable common CONFIG_BLK_DEV_XXX to avoid hardware detection
  77   problems (udev, undate-initramfs hav serious problems without that)
  78
  79          CONFIG_BLK_DEV_SD=y
  80          CONFIG_BLK_DEV_SR=y
  81          CONFIG_BLK_DEV_DM=y
  82
  83 - compile NBD and RBD modules
  84          CONFIG_BLK_DEV_NBD=m
  85          CONFIG_BLK_DEV_RBD=m
  86
  87 - set LOOP_MIN_COUNT to 8 (debian defaults)
  88          CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
  89
  90 - disable module signatures (CONFIG_MODULE_SIG)
  91
  92 - enable IBM JFS file system
  93
  94   This is disabled in RHEL kernel for no real reason, so we enable
  95   it as requested by users (bug #64)
  96
  97 - enable apple HFS and HFSPLUS
  98
  99   This is disabled in RHEL kernel for no real reason, so we enable
 100   it as requested by users
 101
 102 - enable CONFIG_BCACHE=m (requested by user)
 103
 104 - enable CONFIG_BRIDGE=y
 105
 106   Else we get warnings on boot, that
 107   net.bridge.bridge-nf-call-iptables is an unknown key
 108
 109 - enable CONFIG_DEFAULT_SECURITY_APPARMOR
 110
 111   We need this for lxc
 112
 113 - set CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
 114
 115   because if not set, it can give some dynamic memory or cpu frequencies
 116   change, and vms can crash (mainly windows guest).
 117
 118   see http://forum.proxmox.com/threads/18238-Windows-7-x64-VMs-crashing-randomly-during-process-termination?p=93273#post93273
 119
 120 - use 'deadline' as default scheduler
 121
 122   This is the suggested setting for KVM. We also measure bad fsync
 123   performance with ext4 and cfq.
 124
 125 Testing final kernel with kvm
 126 -----------------------------
 127
 128 kvm -kernel data/boot/vmlinuz-3.19.8-1-pve -initrd initrd.img-3.19.8-1-pve -append "vga=791 video=vesafb:ywrap,mtrr" /dev/zero
 129