Somewhat OT: About modules coresize

Sergio Belkin sebelk at
Tue May 21 15:16:06 UTC 2013

2013/5/21 Przemek Klosowski <przemek.klosowski at>

> On 05/21/2013 08:50 AM, Sergio Belkin wrote:
>> I know that is somehat OT, but I was looking for trying to discover what
>> does mean the size column of lsmod. Some people says is memory used by
>> the module, but if I run strace lsmod I found that it takes a look to
>> coresize files at /sys and read
>> /usr/share/doc/kernel-doc-3.9.**2/Documentation/ABI/testing/**
>> sysfs-module
>> and it says "Module size in bytes" but if I see the filesize using ls
>> don't match
>> So what does really mean coresize?
> Modules drop unused memory after initialization so their core resident
> size doesn't have to correspond to filesize.
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So is it memory used by the module?
Sergio Belkin
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