Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
49 lines
1.0 KiB
Bash
Executable File
49 lines
1.0 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0+
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usage() {
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echo Extract any RCU CPU stall warnings present in specified file.
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echo Filter out clocksource lines. Note that preceding-lines excludes the
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echo initial line of the stall warning but trailing-lines includes it.
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echo
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echo Usage: $(basename $0) dmesg-file [ preceding-lines [ trailing-lines ] ]
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echo
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echo Error: $1
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}
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# Terminate the script, if the argument is missing
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if test -f "$1" && test -r "$1"
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then
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:
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else
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usage "Console log file \"$1\" missing or unreadable."
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exit 1
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fi
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echo $1
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preceding_lines="${2-3}"
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trailing_lines="${3-10}"
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awk -v preceding_lines="$preceding_lines" -v trailing_lines="$trailing_lines" '
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suffix <= 0 {
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for (i = preceding_lines; i > 0; i--)
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last[i] = last[i - 1];
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last[0] = $0;
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}
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suffix > 0 {
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print $0;
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suffix--;
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if (suffix <= 0)
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print "";
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}
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suffix <= 0 && /detected stall/ {
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for (i = preceding_lines; i >= 0; i--)
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if (last[i] != "")
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print last[i];
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suffix = trailing_lines;
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}' < "$1" | tr -d '\015' | grep -v clocksource
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