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lfs/linux: enable CONFIG_FPROBE for multi kprobe

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pwru is an utility to trouble shoot network issue,
and to speed up pwru kprobe attachement, kernel needs
to have CONFIG_FPROBE.

running pwru also result in:

Opening kprobe-multi: invalid argument \
(missing kernel symbol or prog's AttachType not AttachTraceKprobeMulti?)

need following to avoid above invalid argument

    echo -1 > /proc/sys/kernel/perf_event_paranoid
    echo 0 > /proc/sys/kernel/kptr_restrict

see https://github.com/cilium/pwru/issues/460

Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
This commit is contained in:
Vincent Li
2024-12-03 02:44:14 +00:00
parent 09c182c75a
commit 1bfeb4b322
1 changed files with 1 additions and 0 deletions
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config/kernel/kernel.config.x86_64-ipfire
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@@ -8044,3 +8044,4 @@ CONFIG_UPROBES=y
CONFIG_UPROBE_EVENTS=y
CONFIG_DEBUG_FS=y
CONFIG_MODULE_SIG_FORCE=y
CONFIG_FPROBE=y