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 22:58:31 -0400 Message-ID: <4C7729D7.3050004@gmail.com> References: <4C75BCBF.6010009@gmail.com> <4C76633D.9010106@gmail.com> <4C76FCB4.9010404@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms000309000106000904020902" 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=tlNDzAsCZV3wrP81gIEVY7E3sb6791Q4NL7o3Z73kzg=; b=F771GpItw2keoSAhYmtC7TK5VucRCPGgNUSsEY0CK9sYvbcbvrqJFMDYU5bNJX3Kpa jSKe/LRkkKP4xfR3rezRKRWn4NeEpq/JNg/4jNVbjHgnzk4iLsPEUjQ1mVAs/kkwPjx4 ARPmZxftKrVjiBg0XVvmapX8T7dHAV0cIp4o0= In-Reply-To: Sender: reiserfs-devel-owner@vger.kernel.org List-ID: To: Jordan Patterson Cc: ReiserFS mailing list This is a cryptographically signed message in MIME format. --------------ms000309000106000904020902 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Thanks for the report non-the-less :) P.S.: ... I just hope you don't use btrfs (did you read the assessment=20 of Edward Shishkin)? On 26/08/10 19:58, Jordan Patterson wrote: > Hi: > > I have a 64-bit Gentoo install, and I would get the same kernel bug > when trying to emerge some java applications, such as ant-base. This > happened with the 2.6.35 and 2.6.34 kernels. > > I was using ccreg40 with lzo compression. > > My CFLAGS are "-march=3Dcore2 -O2 -pipe", which shouldn't have been a > problem. I'm not using reiser4 any more, so I can only confirm this > bug. > > Jordan > > On Thu, Aug 26, 2010 at 5:45 PM, K. Posern wrote:= >> 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 = 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 = for >> example: mkfs.reiser4 doing the wrong things when formatting)?? >> I only heard that it can break the compilation, no? And for me everyth= ing >> 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? >> >> ... Because I could also use O2 and turn on some of them... >> I was told: -ftree-vectorize and -funswitch-loops should be good and m= aybe >> -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 :) >> ... and I disabled CCACHE. >> >> If you don't mind: Now I am interested in your feedback about the othe= r >> features: >> >> These should be 100% secure, right: >> buildsyspkg -- secure I guess ;) ... and I like it in case som= ething >> 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 >> >> 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! >> >> Knuth >> >> --------------ms000309000106000904020902 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKajCC BTEwggMZoAMCAQICAwYm8zANBgkqhkiG9w0BAQUFADB5MRAwDgYDVQQKEwdSb290IENBMR4w HAYDVQQLExVodHRwOi8vd3d3LmNhY2VydC5vcmcxIjAgBgNVBAMTGUNBIENlcnQgU2lnbmlu ZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEWEnN1cHBvcnRAY2FjZXJ0Lm9yZzAeFw0wODEy MTIxOTEzNDFaFw0xMDEyMTIxOTEzNDFaMDsxFTATBgNVBAMTDEtudXRoIFBvc2VybjEiMCAG CSqGSIb3DQEJARYTcXVpY2toZWxwQGdtYWlsLmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEP ADCCAQoCggEBAM/XLQlhOxcmVwIU0kEDlqL9OiNezGZpMhzB/c1ibGEfBxC0v6GfQd+k00a0 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