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[Bug releng/25581] USDT probes when /proc/[pid]/mem not writeable
- From: "dale.hamel at srvthe dot net" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Thu, 20 Feb 2020 02:06:18 +0000
- Subject: [Bug releng/25581] USDT probes when /proc/[pid]/mem not writeable
- Auto-submitted: auto-generated
- References: <bug-25581-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=25581
--- Comment #1 from Dale Hamel <dale.hamel at srvthe dot net> ---
This is the first bug I have created on here, hopefully I have submitted it
correctly. If I am out of order at all, please direct me to the right way to
submit this issue / proposal for enhancement.
This patch has been tested in production and works around the dependency on a
semaphore for popular programs like ruby, memcached, mysql, and redis, and for
using USDT probes without impacting performance when not attached.
Thanks for taking the time to review this bug, I look forward to hearing your
feedback and suggestions,
-Dale
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