base-files: upgrade: don't loop forever trying to kill processes
When processes don't die on SIGKILL (usually because of kernel bugs), it's better to give up instead of looping forever. upgraded will trigger a reboot in this case (and if this fails, a hardware watchdog will eventually time out and reset the system, if present). Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
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1 changed files with 10 additions and 1 deletions
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@ -78,6 +78,8 @@ switch_to_ramfs() {
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}
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kill_remaining() { # [ <signal> [ <loop> ] ]
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local loop_limit=10
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local sig="${1:-TERM}"
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local loop="${2:-0}"
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local run=true
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@ -108,8 +110,15 @@ kill_remaining() { # [ <signal> [ <loop> ] ]
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[ $loop -eq 1 ] && run=true
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done
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let loop_limit--
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[ $loop_limit -eq 0 ] && {
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echo
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echo "Failed to kill all processes."
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exit 1
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}
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done
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echo ""
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echo
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}
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