Adding upstream version 4.2.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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udev-md-raid-safe-timeouts.rules
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udev-md-raid-safe-timeouts.rules
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# Copyright (C) 2017 by Jonathan G. Underwood
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# This file is part of mdraid-safe-timeouts.
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#
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# mdraid-safe-timeouts is free software: you can redistribute it
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# and/or modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation, either version 3 of
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# the License, or (at your option) any later version.
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#
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# Foobar is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License 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 mdraid-safe-timeouts. If not, see
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# <https://www.gnu.org/licenses/>.
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# This file causes block devices with Linux RAID (mdadm) signatures to
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# attempt to set safe timeouts for the drives involved
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# See udev(8) for syntax
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# Don't process any events if anaconda is running as anaconda brings up
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# raid devices manually
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ENV{ANACONDA}=="?*", GOTO="md_timeouts_end"
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SUBSYSTEM!="block|machinecheck", GOTO="md_timeouts_end"
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# "noiswmd" on kernel command line stops mdadm from handling
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# "isw" (aka IMSM - Intel RAID).
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# "nodmraid" on kernel command line stops mdadm from handling
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# "isw" or "ddf".
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IMPORT{cmdline}="nodmraid"
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ENV{nodmraid}=="?*", GOTO="md_timeouts_end"
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IMPORT{cmdline}="noiswmd"
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ENV{noiswmd}=="?*", GOTO="md_timeouts_end"
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# Set controller timeout for parent disk of each partition if the
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# partition is a mdraid partition of higher than raid 0, and the disk
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# doesn't have scterc turned on (i.e. if it's disabled or the disk
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# doesn't support it). We determine if the disk has SCTERC turned on
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# by examining the output of smartctl and seeing if it contains the
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# word "seconds". If the word "seconds" is found we take this to imply
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# STCERC is turned on, and take no action. Otherwise we set the drive
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# controller timeout to 180 seconds. It would be better to check the
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# exit status code of smartctl rather than grepping for "seconds", but
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# it's not clear what that will be in the three cases (supported and
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# turned on, supported but disabled, not supported).
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ENV{DEVTYPE}!="partition", GOTO="md_timeouts_end"
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IMPORT{program}="/sbin/mdadm --examine --export $devnode"
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ACTION=="add|change", \
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ENV{ID_FS_TYPE}=="linux_raid_member", \
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ENV{MD_LEVEL}=="raid[1-9]*", \
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TEST=="/sys/block/$parent/device/timeout", \
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TEST=="/usr/sbin/smartctl", \
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PROGRAM!="/bin/sh -c '/usr/sbin/smartctl -l scterc /dev/$parent | grep -q seconds && exit 0 || exit 1'", \
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RUN+="/bin/sh -c 'echo 180 > /sys/block/$parent/device/timeout && /usr/bin/logger timeout for /dev/$parent set to 180 secs'"
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LABEL="md_timeouts_end"
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