[Bug 885838] Re: sysctl cannot set net.ipv4.tcp_congestion_control to "cubic lp"

[Alessandro Guido]

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https://bugs.launchpad.net/bugs/885838

Title:
  sysctl cannot set net.ipv4.tcp_congestion_control to "cubic lp"

Status in “procps” package in Ubuntu:
  New

Bug description:
  sysctl fails to set net.ipv4.tcp_congestion_control if the value has a
  space. Setting to "cubic" words, setting to "lp" works, setting to
  "cubic lp" or "lp cubic" doesn't work.

  ~> sudo sysctl -p
  net.core.rmem_max = 4194304
  net.core.wmem_max = 1048576
  error: "No such file or directory" setting key "net.ipv4.tcp_congestion_control"

  
  The sysctl manpage reports:

  EXAMPLE
                # sysctl.conf sample
                #

                  kernel.domainname = example.com
                ; this one has a space which will be written to the sysctl!
                  kernel.modprobe = /sbin/mod probe

  So it should work.

  command echo "cubic lp" > /proc/sys/net/ipv4/tcp_congestion_control
  works as excpected

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: procps 1:3.2.8-10ubuntu5
  Uname: Linux 3.1.0 i686
  NonfreeKernelModules: nvidia
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  Date: Thu Nov  3 20:16:15 2011
  SourcePackage: procps
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.sysctl.conf: 2011-11-03T20:10:14.949162

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