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fix VM autostart race condition

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https://github.com/QubesOS/qubes-issues/issues/1075
This commit is contained in:
Patrick Schleizer 2015-07-30 17:46:24 +02:00
parent 39379364c7
commit 472ed54e4c
1 changed files with 8 additions and 5 deletions
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13
linux/aux-tools/prepare-volatile-img.sh
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@ -27,8 +27,11 @@ sfdisk --no-reread -u M "$FILENAME" > /dev/null 2> /dev/null <<EOF
,${ROOT_SIZE},L
EOF
loopdev=`losetup -f --show --partscan "$FILENAME"`
udevadm settle
mkswap -f ${loopdev}p1 > /dev/null
losetup -d ${loopdev} || :
chown --reference `dirname "$FILENAME"` "$FILENAME"
(
flock 200
loopdev=`losetup -f --show --partscan "$FILENAME"`
udevadm settle
mkswap -f ${loopdev}p1 > /dev/null
losetup -d ${loopdev} || :
chown --reference `dirname "$FILENAME"` "$FILENAME"
) 200>"/var/run/qubes/prepare-volatile-img.lock"