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Remove trace_buf_size and trace_event from the kernel bootparameters of the kdump kernel

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upstream: fedora
resolves: bz2003832
conflict: none

commit f39000f524
Author: fj1508ic@fujitsu.com <fj1508ic@fujitsu.com>
Date:   Tue Jan 26 06:37:28 2021 +0000

    Remove trace_buf_size and trace_event from the kernel bootparameters of the kdump kernel

    The kdump kernel uses resources for ftrace because trace_buf_size, which
    specifies the ring buffer size for ftrace, and trace_event, which specifies
    a valid trace event, are not removed, but the kdump kernel does not require
    ftrace.

    trace_buf_size is ignored if the specified size is 0, so specify 1.

    Signed-off-by: Hisashi Nagaoka <fj1508ic@fujitsu.com>
    Acked-by: Kairui Song <kasong@redhat.com>

Signed-off-by: Tao Liu <ltao@redhat.com>
This commit is contained in:
Tao Liu 2021-11-10 10:20:27 +08:00
parent beac78b8e7
commit 078307f19f
1 changed files with 4 additions and 0 deletions
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4
kdump-lib.sh
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@ -757,6 +757,10 @@ prepare_cmdline()
fi fi
done done
# Remove trace_buf_size, trace_event
cmdline=$(remove_cmdline_param "$cmdline" trace_buf_size trace_event)
cmdline="${cmdline} trace_buf_size=1"
echo ${cmdline} echo ${cmdline}
} }