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From: Allan Gottlieb <gottlieb@nyu.edu>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] what is /usr/lib64/debug ?
References: <yu91uwizv1k.fsf@nyu.edu>
	<CAJnEOsg88RYOgxdhmFueGHAV9_RZX8m9fMj20f4_wE7+1gsTzg@mail.gmail.com>
Date: Thu, 18 Aug 2011 10:27:37 -0400
In-Reply-To: <CAJnEOsg88RYOgxdhmFueGHAV9_RZX8m9fMj20f4_wE7+1gsTzg@mail.gmail.com>
	(Daniel Pielmeier's message of "Thu, 18 Aug 2011 16:09:22 +0200")
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On Thu, Aug 18 2011, Daniel Pielmeier wrote:

> 2011/8/18 Allan Gottlieb <gottlieb@nyu.edu>:
>> /usr/lib64/debug seems to have in it a duplicate (at least as far as
>> directory names are concerned) of much of /usr/lib64.
>>
>> For example
>>
>> =C2=A0 =C2=A0ajglap lib64 # /bin/pwd
>> =C2=A0 =C2=A0/usr/lib64/debug/usr/lib64
>> =C2=A0 =C2=A0ajglap lib64 # du -s * | sort -n | tail -10
>> =C2=A0 =C2=A034020 =C2=A0 =C2=A0 =C2=A0 mesa
>> =C2=A0 =C2=A053148 =C2=A0 =C2=A0 =C2=A0 gstreamer-0.10
>> =C2=A0 =C2=A0155992 =C2=A0 =C2=A0 =C2=A0icedtea6
>> =C2=A0 =C2=A0161360 =C2=A0 =C2=A0 =C2=A0llvm
>> =C2=A0 =C2=A0208932 =C2=A0 =C2=A0 =C2=A0qt4
>> =C2=A0 =C2=A0304016 =C2=A0 =C2=A0 =C2=A0xulrunner-devel-2.0
>> =C2=A0 =C2=A0308880 =C2=A0 =C2=A0 =C2=A0xulrunner-2.0
>> =C2=A0 =C2=A0618408 =C2=A0 =C2=A0 =C2=A0firefox
>> =C2=A0 =C2=A0669000 =C2=A0 =C2=A0 =C2=A0libwebkitgtk-1.0.so.0.7.2.debug
>> =C2=A0 =C2=A01087848 =C2=A0 =C2=A0 libreoffice
>> =C2=A0 =C2=A0ajglap lib64 #
>>
>> Is this correct? =C2=A0My system is ~amd64
>
>
> Do you have the splitdebug [1] FEATURE enabled?
>
> [1] http://www.gentoo.org/proj/en/qa/backtraces.xml

Bingo.

If I drop this feature (I turned it on for tracking a bug) will the
/usr/lib64/debug tree go away or must I delete it manually.

Also are there any other large subtrees I need to purge?

thanks for the help.
allan