On Tue, Aug 11, 2009 at 10:30 AM, Subrata
Modak<[email protected]> wrote:
> Script which would actually do the job of injecting faults by changing various
> parametrs available under /debug/fail*. This would be done dynamically during
> LTP run, and, is capable of taking parameters from 0 to 100 to vary the
> probability of Fault the user wants to inject in the running kernel.
>
> Signed-off-by: Subrata Modak <[email protected]>
> ---
>
> diff -uprN ltp-full-20090731.orig/tools/insert_kernel_faults.sh
> ltp-full-20090731/tools/insert_kernel_faults.sh
> --- ltp-full-20090731.orig/tools/insert_kernel_faults.sh 1970-01-01
> 05:30:00.000000000 +0530
> +++ ltp-full-20090731/tools/insert_kernel_faults.sh 2009-08-11
> 18:44:45.000000000 +0530
> @@ -0,0 +1,52 @@
> +#!/bin/sh
> +################################################################################
> +##
> ##
> +## Copyright (c) International Business Machines Corp., 2009
> ##
> +##
> ##
> +## This program is free software; you can redistribute it and/or modify
> ##
> +## it under the terms of the GNU General Public License as published by
> ##
> +## the Free Software Foundation; either version 2 of the License, or
> ##
> +## (at your option) any later version.
> ##
> +##
> ##
> +## This program is distributed in the hope that it will be useful, but
> ##
> +## WITHOUT ANY WARRANTY; without even the implied warranty of
> MERCHANTABILITY ##
> +## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
> ##
> +## for more details.
> ##
> +##
> ##
> +## You should have received a copy of the GNU General Public License
> ##
> +## along with this program; if not, write to the Free Software
> ##
> +## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
> ##
> +##
> ##
> +################################################################################
> +#
> ##
> +# File : insert_kernel_faults.sh
> ##
> +#
> ##
> +# Usage: insert_kernel_faults.sh <fault_percentage>
> ##
> +#
> ##
> +# Description: This is a simple script that inserts faults at various
> ##
> +# subsystems of the kernel. Please refer to the ltp/README
> ##
> +# for the various kernel CONFIG options needed to exploit
> ##
> +# all those features
> ##
> +#
> ##
> +# Author: Subrata Modak <[email protected]>
> ##
> +#
> ##
> +# History: Aug 11 2009 - Created - Subrata Modak.
> ##
> +################################################################################
> +
> +if [ -z $1 ]
> + then
> + #Check if Useage has been proper
> + echo "Usage: $0 <fault_percentage>"
> + exit 1
> +fi
> +
> +#These are the types of Subsystems where fault will be injected
> +#Make sure debugfs has been mounted
> +for FAILTYPE in `echo fail_io_timeout fail_make_request fail_page_alloc
> failslab`
> +do
> + echo $1 > /debug/$FAILTYPE/probability
> + echo 100 > /debug/$FAILTYPE/interval
> + echo -1 > /debug/$FAILTYPE/times
> + echo 0 > /debug/$FAILTYPE/space
> +done
Why ```for FAILTYPE in `echo list-of-values`'''? ```for FAILTYPE
in list-of-values''' works just as well without the echo.
Thanks,
-Garrett
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