Discuss May 2010

discuss@lists.centos.org

270 participants
215 discussions

release of 5.5? (filesystem troubles)
by Rainer Fuegenstein 17 May '10

17 May '10

hi guys, is there an estimate when centos 5.5 will be released? I'm sitting on needles here, because since I moved my 4*1.5TB raid5 from an asus to an intel D510 mainboard I encounter bug the described here: https://bugzilla.redhat.com/show_bug.cgi?id=512552 short version: running xfs on top of a raid5 under heavy load causes corrupted data to be read and the filesystem shutting down occasionally. version 5.5 should solve this problem. if 5.5 is just a few days away I'll keep waiting, but if it takes much longer I'll need to work around this problem like going back to the old mainboard, compiling the kernel myself, switching to ext3 - none of which I'm eager to do. cu

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Free and Robust Hotspot Management Software ?
by Roberto HT 17 May '10

17 May '10

Dear all, Could anybody give me some recommended open source software for wifi management? What I am looking for is a simple and basic tools, for example the software will have these kind of features : - user connect to the wifi network - user got IP from DHCP but he can't browse to anywhere at first. Instead he will redirected to a "login page" - administrator will set the username and password (e.g : user1, password ; user2, password2) - if needed, the username will be enabled and be given to the user - if unused, the username will simply be disabled so no authenticated user could connect eventhough they remember the password. - I don't need the billing system just the administration tools. I already googled and found chillispot, but it seemed to be an overkill software. Are there anything simpler than chillispot? Thanks. Roberto

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RHEL 6 Beta available for public download
by Timo Schoeler 17 May '10

17 May '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 http://press.redhat.com/2010/04/21/red-hat-enterprise-linux-6-beta-availabl… ...says it all. Have phun! Timo -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFLzuMEfg746kcGBOwRAgjYAJ9QkJvm40sOVAOcUk4edQ98bM5CKgCgomte W8RuS+4FvyB/54jUnP+bT+A= =m6zn -----END PGP SIGNATURE-----

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bluetooth mouse
by Roger K. Wells 17 May '10

17 May '10

Hello, I believe that it is well known that the scroll wheel on the Microsoft Bluetooth Mouse 5000 does not work on CentOS 5.4. It does, however, work as expected on Fedora 12 & Ubuntu 9.10 & 10.04. Does anyone know if there is a driver upgrade path for CentOS that will fix this problem? Thanks, roger wells -- Roger Wells, P.E. SAIC 221 Third St Newport, RI 02840 401-847-4210 (voice) 401-849-1585 (fax) roger.k.wells(a)saic.com

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centos release 5.5 issue
by Philip Manuel 17 May '10

17 May '10

Hi One of our developers has come across an issue with the new release. He provided this piece of code to show the problem:- cat failure.c #include </usr/include/asm-x86_64/msr.h> int main( int argc, char* argv[] ) { return 0; } gcc failure.c /usr/include/asm-x86_64/msr.h:169: error: expected declaration specifiers or ‘...’ before ‘u32’ /usr/include/asm-x86_64/msr.h:169: error: expected declaration specifiers or ‘...’ before ‘u32’ /usr/include/asm-x86_64/msr.h:169: error: expected declaration specifiers or ‘...’ before ‘u32’ /usr/include/asm-x86_64/msr.h: In function ‘rdmsr_on_cpu’: /usr/include/asm-x86_64/msr.h:171: error: ‘l’ undeclared (first use in this function) /usr/include/asm-x86_64/msr.h:171: error: (Each undeclared identifier is reported only once /usr/include/asm-x86_64/msr.h:171: error: for each function it appears in.) /usr/include/asm-x86_64/msr.h:171: error: ‘h’ undeclared (first use in this function) /usr/include/asm-x86_64/msr.h:171: error: ‘msr_no’ undeclared (first use in this function) /usr/include/asm-x86_64/msr.h:171: error: invalid lvalue in asm output 0 /usr/include/asm-x86_64/msr.h:171: error: invalid lvalue in asm output 1 /usr/include/asm-x86_64/msr.h: At top level: /usr/include/asm-x86_64/msr.h:173: error: expected declaration specifiers or ‘...’ before ‘u32’ /usr/include/asm-x86_64/msr.h:173: error: expected declaration specifiers or ‘...’ before ‘u32’ /usr/include/asm-x86_64/msr.h:173: error: expected declaration specifiers or ‘...’ before ‘u32’ /usr/include/asm-x86_64/msr.h: In function ‘wrmsr_on_cpu’: /usr/include/asm-x86_64/msr.h:175: error: ‘msr_no’ undeclared (first use in this function) /usr/include/asm-x86_64/msr.h:175: error: ‘l’ undeclared (first use in this function) /usr/include/asm-x86_64/msr.h:175: error: ‘h’ undeclared (first use in this function) Anyone else seen this or found a bug with these function definitions ? Thanks Phil

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Re: [CentOS] Yum segmentation fault when updating to CentOS v5.5
by Sorin Srbu 17 May '10

17 May '10

>-----Original Message----- >From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf >Of Sorin Srbu >Sent: Monday, May 17, 2010 11:22 AM >To: 'CentOS mailing list' >Subject: Re: [CentOS] Yum segmentation fault when updating to CentOS v5.5 > >>-----Original Message----- >>From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On >Behalf >>Of cornel panceac >>Sent: Monday, May 17, 2010 10:59 AM >>To: CentOS mailing list >>Subject: Re: [CentOS] Yum segmentation fault when updating to CentOS v5.5 >> >> I'm getting a segmentation fault with yum when I try to update a >>CentOS v5.4 >> install to v5.5. >> >> >> >>try updating only some of the packages. if there's one package which can >not be >>updated with yum, rpm -Uvh > >Tried with yum update kernel*, yum update kernel-headers, yum update *lib* >and yum update httpd. Still gives me the seg fault error. 8-/ Never mind this problem. Just tried to start httpd and it gave me a segmentation fault as well. Something is not right with this particular machine and I think it's for the best to do a complete reinstall anyway. Thanks all. -- /Sorin

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Re: [CentOS] Yum segmentation fault when updating to CentOS v5.5
by cornel panceac 17 May '10

17 May '10

2010/5/17 Sorin Srbu <sorin.srbu(a)orgfarm.uu.se> > Hi all, > > I'm getting a segmentation fault with yum when I try to update a CentOS > v5.4 > install to v5.5. > try updating only some of the packages. if there's one package which can not be updated with yum, rpm -Uvh -- Among the maxims on Lord Naoshige's wall, there was this one: "Matters of great concern should be treated lightly." Master Ittei commented, "Matters of small concern should be treated seriously." (Ghost Dog : The Way of The Samurai)

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Re: [CentOS] Yum segmentation fault when updating to CentOS v5.5
by Mogens Kjaer 17 May '10

17 May '10

On 05/17/2010 10:46 AM, Sorin Srbu wrote: ... > Any other tips, tricks or hints I could try? Can you strace the yum update process and see what happens before it crashes? Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Mobile: +45 22 12 53 25 Email: mk(a)crc.dk Homepage: http://www.crc.dk

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Yum segmentation fault when updating to CentOS v5.5
by Sorin Srbu 17 May '10

17 May '10

Hi all, I'm getting a segmentation fault with yum when I try to update a CentOS v5.4 install to v5.5. What I've done: * Ran yum clean all. * Ran yum update yum* * Ran yum update, and got the segmentation fault. * Yum suggested running with option --skip-broken, which I did. Still got the segmentation fault. * Rebooted machine and ran yum update again. Segmentation fault... * Googled some and found some hints on rebuilding the rpm-database, which I did. * Ran yum update again. Got segmentation fault again. * Disabled all 3rd party repos, rpmforge and epel, tried yum update again and got seg fault. * Disabled all plugins; priorities, fastestmirror and kmod, tried yum pdate again and got seg fault yet again. * Removed /var/cache/yum and ran yum update. Got a seg fault. Any other tips, tricks or hints I could try? FWIW, this is the only machine I've had this problem with. All others I've updated to v5.5 so far have worked w/o a hitch as upgrades go. Thanks for any help. -- BW, Sorin ----------------------------------------------------------- # Sorin Srbu [Sysadmin, Systems Engineer] # Dept of Medicinal Chemistry, Phone: +46 (0)18-4714482 >3 signals> GSM # Div of Org Pharm Chem, Mobile: +46 (0)701-718023 # Box 574, Uppsala University, Fax: +46 (0)18-4714482 # SE-751 23 Uppsala, Sweden Visit: BMC, Husargatan 3, D5:512b # Web: http://www.orgfarm.uu.se ----------------------------------------------------------- # () ASCII ribbon campaign - Against html E-mail # /\ # # MotD follows: # Multitasking /adj./ 3 PCs and a chair with wheels!

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measuring kernel speed
by Mag Gam 17 May '10

17 May '10

At our Physics research labs we do a lot with low latency networks. We have been using Centos for over 3 years now and its been great! We would like to tune and optimize our setup by removing unneeded packages -- kernel modules to be specific. I was wondering, how does one measure the speed of the kernel. Is that even possible?

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Discuss May 2010