From: John Levon <levon@movementarian.org>
To: linux-kernel@vger.kernel.org, rusty@rustcorp.com.au
Subject: size in /proc/modules
Date: Mon, 20 Jan 2003 14:27:03 +0000 [thread overview]
Message-ID: <20030120142703.GA58326@compsoc.man.ac.uk> (raw)
/proc/modules size field includes init_size in 2.5. Why ?
The removal of sensible values in /proc/ksyms means that oprofile can no
longer attribute module samples reliably. The only information we have
is module_core address, and size == core_size+init_size. Since init code
is removed in sys_init_module, this will overestimate, and can lead to
overlapping with the start of another module, afaics.
In 2.4, we had size(.text), which could underestimate (think
.text.exit), but that is not a big problem.
Rusty, does this fall under another one of your "corner cases" ? (what I
would call "flaky code" ...)
Or I have I just missed something obvious ?
regards
john
--
"Anyone who quotes Rusty in their sig is an idiot."
- me
next reply other threads:[~2003-01-20 14:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-20 14:27 John Levon [this message]
2003-01-21 6:44 ` size in /proc/modules Rusty Russell
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