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44 lines
1.3 KiB
44 lines
1.3 KiB
6 years ago
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From f264cfbe8a9fa36765c918db9d7074a89eedbcd6 Mon Sep 17 00:00:00 2001
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From: Lukas Nykryn <lnykryn@redhat.com>
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Date: Mon, 11 Jun 2018 11:07:59 +0200
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Subject: [PATCH] dracut.sh: workaround broken read from /proc/modules
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RHEL-only (upstream is using libkmod)
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Resolves: #1578222
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---
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dracut.sh | 21 +++++++++++++++++----
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1 file changed, 17 insertions(+), 4 deletions(-)
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diff --git a/dracut.sh b/dracut.sh
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index 873274c0..9dadece0 100755
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--- a/dracut.sh
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+++ b/dracut.sh
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@@ -1145,10 +1145,23 @@ if [[ $hostonly ]]; then
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# check /proc/modules
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declare -A host_modules
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- while read m rest; do
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- [ -z "$m" ] && continue
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- host_modules["$m"]=1
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- done </proc/modules
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+ declare new_module_found=1
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+ declare tmpmodules=$(mktemp --tmpdir="$TMPDIR/" -t proc_modules.XXXXXX)
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+ while [[ $new_module_found ]]; do
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+ new_module_found=
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+ sleep 0.1
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+ #reading from procfs can be broken, so copy the file elsewhere
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+ cp -f /proc/modules "$tmpmodules"
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+ while read m rest; do
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+ [ -z "$m" ] && continue
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+ [[ ${host_modules["$m"]} ]] && continue
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+ host_modules["$m"]=1
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+ new_module_found=1
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+ done < "$tmpmodules"
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+ done
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+ rm "$tmpmodules"
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+ unset new_module_found
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+ unset tmpmodules
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fi
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unset m
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