[FS#1144] Opkg fails with Out of memory on a TP-Link RE450

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Markus Eckhardt (Markinus) 

Attached to Project - LEDE Project
Summary - Opkg fails with Out of memory on a TP-Link RE450
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Hi!

I a problem on my TPLINK RE450 on upgrading of packages. I'm restarting the system and the upgrade is still not possible, console output:

BusyBox v1.25.1 () built-in shell (ash)

     _________
    /        /\      _    ___ ___  ___
   /  LE    /  \    | |  | __|   \| __|
  /    DE  /    \   | |__| _|| |) | _|
 /________/  LE  \  |____|___|___/|___|                      lede-project.org
 \        \   DE /
  \    LE  \    /  -----------------------------------------------------------
   \  DE    \  /    Reboot (17.01.4, r3560-79f57e422d)
    \________\/    -----------------------------------------------------------

root at LEDE:~# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root                 2560      2560         0 100% /rom
tmpfs                    30332        80     30252   0% /tmp
/dev/mtdblock3            2176       236      1940  11% /overlay
overlayfs:/overlay        2176       236      1940  11% /
tmpfs                      512         0       512   0% /dev
root at LEDE:~# free
             total       used       free     shared    buffers     cached
Mem:         60664      43600      17064         80       2320       6048
-/+ buffers/cache:      35232      25432
Swap:            0          0          0
root at LEDE:~# opkg update
Downloading http://downloads.lede-project.org/releases/17.01.4/targets/ar71xx/generic/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_core
Downloading http://downloads.lede-project.org/releases/17.01.4/targets/ar71xx/generic/packages/Packages.sig
Signature check passed.
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/base/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_base
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/base/Packages.sig
Signature check passed.
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/luci/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_luci
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/luci/Packages.sig
Signature check passed.
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_packages
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/packages/Packages.sig
Signature check passed.
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/routing/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_routing
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/routing/Packages.sig
Signature check passed.
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/telephony/Packages.gz
Updated list of available packages in /var/opkg-lists/reboot_telephony
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/telephony/Packages.sig
Signature check passed.
root at LEDE:~# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root                 2560      2560         0 100% /rom
tmpfs                    30332       568     29764   2% /tmp
/dev/mtdblock3            2176       236      1940  11% /overlay
overlayfs:/overlay        2176       236      1940  11% /
tmpfs                      512         0       512   0% /dev
root at LEDE:~# free
             total       used       free     shared    buffers     cached
Mem:         60664      44804      15860        568       2320       6756
-/+ buffers/cache:      35728      24936
Swap:            0          0          0
root at LEDE:~# opkg list upgradable
root at LEDE:~# opkg list-upgradable
luci-lib-ip - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
luci-theme-bootstrap - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
dnsmasq - 2.78-1 - 2.78-2
luci-app-firewall - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
luci-proto-ppp - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
luci-mod-admin-full - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
luci-base - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
luci-proto-ipv6 - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
luci-lib-nixio - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
luci-lib-jsonc - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
luci - git-17.290.79498-d3f0685-1 - git-17.298.45605-07e7ff0-1
root at LEDE:~# opkg upgrade luci-base
Upgrading luci-base on root from git-17.290.79498-d3f0685-1 to git-17.298.45605-07e7ff0-1...
Downloading http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/luci/luci-base_git-17.298.45605-07e7ff0-1_mips_24kc.ipk
Collected errors:
 * xsystem: wget: vfork: Out of memory.
 * opkg_download: Failed to download http://downloads.lede-project.org/releases/17.01.4/packages/mips_24kc/luci/luci-base_git-17.298.45605-07e7ff0-1_mips_24kc.ipk, wget returned -1.
 * opkg_install_pkg: Failed to download luci-base. Perhaps you need to run 'opkg update'?
root at LEDE:~#


It looks like there is enough memory availible, where is the problem? Can someone explain it? With a sysctl -w vm.min_free_kbytes=0  the upgrade is possible.




 

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1144