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[Bug 1131019] Re: ip range scan with fping lasts six times


Hi Christopher, 
your link about EOL of Lucid tells (as i could remember) that Lucid Server's EOL will be in April 2015. 

I'm sorry, but i can't burn the iso and test new release as it's too much effort for me at the moment. 
The bug may be easily reproduced with Lucid running fping on a Pentium I/AMD-K6-machine using Kernel 2.6.32-44-generic (no bug) and Kernel 2.6.32-45-generic (fping 6 times slower), as same bug occurs on two different machines (PI/AMD-K6-Processor) working as network routers. There seems something related to the bug changed between those kernel versions. 

Stefan Welte

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  ip range scan with fping lasts six times

Status in “linux” package in Ubuntu:

Bug description:
  Description:    Ubuntu 10.04.4 LTS
  Release:        10.04

  System is up to date (with aptitude),

  Scanning the range of 255 IPs with fping normally (with kernels
  2.6.32-40 - 2.6.32-44) lasts appr. 15 seconds. With kernels =2.6.32-45
  (both generic and 386) the scan lasts 90 seconds. This speed problem
  is only on server machine without X and Pentium I MMX cpu at 166 MHz.

  $ fping -v
  fping: Version 2.4b2_to $Date: 2002/01/16 00:33:42 $
  fping: comments to david@xxxxxxxxxx

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