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54 lines
2.7 KiB
54 lines
2.7 KiB
#!/bin/sh
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################################################################################
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## ##
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## Copyright (c) International Business Machines Corp., 2009 ##
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## ##
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## This program is free software; you can redistribute it and/or modify ##
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## it under the terms of the GNU General Public License as published by ##
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## the Free Software Foundation; either version 2 of the License, or ##
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## (at your option) any later version. ##
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## ##
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## This program is distributed in the hope that it will be useful, but ##
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## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ##
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## for more details. ##
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## ##
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## You should have received a copy of the GNU General Public License ##
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## along with this program; if not, write to the Free Software ##
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## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ##
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## ##
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################################################################################
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# ##
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# File : insert_kernel_faults.sh ##
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# ##
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# Usage: insert_kernel_faults.sh <fault_percentage> ##
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# ##
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# Description: This is a simple script that inserts faults at various ##
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# subsystems of the kernel. Please refer to the ltp/README ##
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# for the various kernel CONFIG options needed to exploit ##
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# all those features ##
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# ##
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# Author: Subrata Modak <subrata@linux.vnet.ibm.com> ##
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# ##
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# History: Aug 11 2009 - Created - Subrata Modak. ##
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# Aug 17 2009 - Changed the debugfs mount point - Subrata Modak.##
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################################################################################
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if [ -z "$1" ]
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then
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#Check if Useage has been proper
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echo "Usage: $0 <fault_percentage>"
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exit 1
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fi
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#These are the types of Subsystems where fault will be injected
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#Make sure debugfs has been mounted
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for FAILTYPE in fail_io_timeout fail_make_request fail_page_alloc failslab
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do
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echo $1 > /sys/kernel/debug/$FAILTYPE/probability
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echo 100 > /sys/kernel/debug/$FAILTYPE/interval
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echo -1 > /sys/kernel/debug/$FAILTYPE/times
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echo 0 > /sys/kernel/debug/$FAILTYPE/space
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done
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