From: Vince Weaver <vincent.weaver@maine.edu>
To: linux-kernel@vger.kernel.org
Cc: Song Liu <songliubraving@fb.com>,
Peter Zijlstra <peterz@infradead.org>,
mingo@kernel.org
Subject: perf: fuzzer leads to trace_kprobe: Could not insert message flood
Date: Tue, 10 Apr 2018 10:48:19 -0400 (EDT) [thread overview]
Message-ID: <alpine.DEB.2.21.1804101043490.6068@macbook-air> (raw)
Author: Song Liu <songliubraving@fb.com>
Date: Wed Dec 6 14:45:15 2017 -0800
When running the perf_fuzzer on a current git checkout my logs are flooded
with messages such as this:
[71487.869077] trace_kprobe: Could not insert probe at unknown+0: -22
[71488.174479] trace_kprobe: Could not insert probe at unknown+0: -22
Presumably this is due to the introduction of the perf_kprobe PMU in
commit e12f03d7031a977356e3d7b75a68c2185ff8d155
Author: Song Liu <songliubraving@fb.com>
Date: Wed Dec 6 14:45:15 2017 -0800
Is there a way to get this error disabled, or else rate-limited?
Vince
next reply other threads:[~2018-04-10 14:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-10 14:48 Vince Weaver [this message]
2018-04-10 19:57 ` Song Liu
2018-04-11 12:04 ` Ingo Molnar
2018-04-11 18:02 ` Song Liu
2018-04-12 7:52 ` Ingo Molnar
2018-04-12 7:53 ` Ingo Molnar
2018-04-12 9:22 ` [tip:perf/urgent] perf/core: Need CAP_SYS_ADMIN to create k/uprobe with perf_event_open() tip-bot for Song Liu
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