From mboxrd@z Thu Jan 1 00:00:00 1970 From: "K. Posern" Subject: Re: strange problem with reiser4 with ccreg40 on amd64 2.6.35.2 vanilla kernel + tuxonice + reiser4 on a mdadm imsm raid-0 partition Date: Thu, 26 Aug 2010 19:45:56 -0400 Message-ID: <4C76FCB4.9010404@gmail.com> References: <4C75BCBF.6010009@gmail.com> <4C76633D.9010106@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms010509000308060808030202" Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :content-type; bh=HEoJe0mp3ut8VNOjjPxFqTBlW5RsV+d8EPhumLjwB88=; b=leS55MPLyNW1h2Wj/MmYiUtWRoJ0n+S/9CwTMCaIIV3ChbrO27UKuttC5cVyEOYsCh r4fiY5PFF9KNAGM8/vAdSa/gPvEpEX5xZGj4HW7PLuSPxif0/ZBw2A5/9DSMh8OZjjWL RZd56GQgM5EqKdu1Q3gX8407fzUs49DV0AEWA= In-Reply-To: Sender: reiserfs-devel-owner@vger.kernel.org List-ID: To: ReiserFS mailing list Cc: =?UTF-8?B?Sm9uw6HFoSBWaWRyYQ==?= This is a cryptographically signed message in MIME format. --------------ms010509000308060808030202 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Hi, On 26/08/10 15:20, Jon=C3=A1=C5=A1 Vidra wrote: > Could you, please, recompile both the kernel and reiser4progs > (and possibly their dependencies :D) with -O2 instead of -O3 > in CFLAGS? It tends to break things in strange and nasty ways, > why do you have it enabled globally like this? Are you sure > it's actually needed? I had read around and found comments that it can actually make things=20 faster and so I decided to give it a try. You said "break things in strange and nasty ways": Does this mean it can compile well and then just not WORK right (like=20 for example: mkfs.reiser4 doing the wrong things when formatting)?? I only heard that it can break the compilation, no? And for me=20 everything compiled fine. The difference between -O2 and -O3 are these 6 options: > -fgcse-after-reload [enabled] > -finline-functions [enabled] > -fipa-cp-clone [enabled] > -fpredictive-commoning [enabled] > -ftree-vectorize [enabled] > -funswitch-loops [enabled] Can you maybe comment on them? =2E.. Because I could also use O2 and turn on some of them... I was told: -ftree-vectorize and -funswitch-loops should be good and=20 maybe -fpredictive-commoning?! > Also, CCache is not used anymore, remove it from FEATURES. > If you actually _use_ CCache (i.e. you've installed it > manually), unmerge it immediately. It's broken by design. > > Other stuff in your FEATURES looks fishy as well, but it > shouldn't affect builds. I hope you know what you're doing. Thanks! I used your comment to review my features again :) =2E.. and I disabled CCACHE. If you don't mind: Now I am interested in your feedback about the other=20 features: These should be 100% secure, right: buildsyspkg -- secure I guess ;) ... and I like it in case something=20 f's up big-scale in portage and I start emerging ;) ... happened once to = a friend of mine ... just try to use portage when python is broken ;) collision-protect -- useful I find parallel-fetch -- faster downloads who doen't want that metadata-transfer -- necessary for sqlite with portage (afaik) noauto -- convenient noinfo -- I just don't use "info" SECURITY - Drop-Priviledges --> should if things compile also be fine, right? userpriv usersandbox userfetch usersync=09 SECURITY - MISC: --> These I like for some additional (security) checking: (I guess about them and the File-Permissions I am the most interested in = your opinion) sandbox - seems also useful to me, no? strict - seems like a good thing from the description SECURITY - File-Permissions <<< they might be scetchy, right?... but should not do /harm/ sfperms suidctl Thanks a lot! 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