From: Lukas Berk <lberk@redhat.com>
To: systemtap <systemtap@sourceware.org>
Cc: swood@fotofor.biz
Subject: Re: freezes stap
Date: Mon, 23 Jul 2018 14:22:00 -0000 [thread overview]
Message-ID: <87y3e26ngs.fsf@redhat.com> (raw)
In-Reply-To: <CAKFOr-bD1JP1e4qbC+vRroeUicn5q9gAqcCqiCejWRSpN8_r=A@mail.gmail.com> (David Smith's message of "Thu, 19 Jul 2018 15:54:21 -0500")
Hi,
A somewhat tangential thought,
David Smith <dsmith@redhat.com> writes:
>>> 2) WARNING: probe kernel.function("vfs_read@../fs/read_write.c:418")
>>> (address 0xffffffff95232f70) registration error (rc -84)
>>>
>>> That one is fairly fatal. Your probe couldn't be registered, and
>>> returned -84. Since your probe couldn't be registered, the module
>>> won't really do anything.
From a usability standpoint, could we possibly keep track of the number
of targeted probe points vs successfully registered probe points? In
the event none exist, perhaps it'd be worthwhile to exit on our own
volition. It might spare users the extra time trying to debug the issue
with a message elaborating on why (ie, no probe points actually
registered, nothing for us to do).
Cheers,
Lukas
next prev parent reply other threads:[~2018-07-23 14:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-19 15:38 Anton Kiryushkin
2018-07-19 20:39 ` David Smith
2018-07-19 20:47 ` Anton Kiryushkin
2018-07-19 20:54 ` David Smith
2018-07-23 14:22 ` Lukas Berk [this message]
2018-07-23 20:01 ` David Smith
2018-07-23 20:48 ` Lukas Berk
2018-07-26 15:24 ` Anton Kiryushkin
2018-07-26 19:07 ` David Smith
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