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Errors in dmesg
by Gregory Machin 05 Jun '12

05 Jun '12

Hi. I have a RHEL server that has some errors in dmesg , what do they mean, how do I fix them ? mtrr: type mismatch for f9000000,800000 old: write-back new: write-combining mtrr: type mismatch for f9000000,1000000 old: write-back new: write-combining mtrr: type mismatch for f9fe0000,10000 old: write-back new: write-combining mtrr: type mismatch for f9fc0000,20000 old: write-back new: write-combining mtrr: type mismatch for f9f80000,40000 old: write-back new: write-combining mtrr: type mismatch for f9f00000,80000 old: write-back new: write-combining mtrr: type mismatch for f9e00000,100000 old: write-back new: write-combining mtrr: type mismatch for f9c00000,200000 old: write-back new: write-combining mtrr: type mismatch for f9800000,400000 old: write-back new: write-combining mtrr: type mismatch for f9000000,800000 old: write-back new: write-combining mtrr: type mismatch for f9fe0000,10000 old: write-back new: write-combining mtrr: type mismatch for f9fc0000,20000 old: write-back new: write-combining mtrr: type mismatch for f9f80000,40000 old: write-back new: write-combining mtrr: type mismatch for f9f00000,80000 old: write-back new: write-combining mtrr: type mismatch for f9e00000,100000 old: write-back new: write-combining mtrr: type mismatch for f9c00000,200000 old: write-back new: write-combining mtrr: type mismatch for f9800000,400000 old: write-back new: write-combining mtrr: type mismatch for f9000000,800000 old: write-back new: write-combining input: AT Translated Set 2 keyboard as /class/input/input4 altera_installe[6598]: segfault at 0000000000000000 rip 0000000000000000 rsp 00000000ffd6af2c error 14 INFO: task kjournald:1793 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kjournald D ffff810c6a193e40 0 1793 843 1819 1789 (L-TLB) ffff81183fdc9cf0 0000000000000046 ffff810c3fbe4780 ffff810c3f574600 ffff810c3f574600 000000000000000a ffff810c3f88f7e0 ffff810c3e843860 0011dd0b95e546c6 000000000000a1a4 ffff810c3f88f9c8 0000000400074c00 Call Trace: [<ffffffff8006ecd9>] do_gettimeofday+0x40/0x90 [<ffffffff8005a3ad>] getnstimeofday+0x10/0x29 [<ffffffff800155a2>] sync_buffer+0x0/0x3f [<ffffffff800637de>] io_schedule+0x3f/0x67 [<ffffffff800155dd>] sync_buffer+0x3b/0x3f [<ffffffff80063a0a>] __wait_on_bit+0x40/0x6e [<ffffffff800155a2>] sync_buffer+0x0/0x3f [<ffffffff80063aa4>] out_of_line_wait_on_bit+0x6c/0x78 [<ffffffff800a34d6>] wake_bit_function+0x0/0x23 [<ffffffff88033e56>] :jbd:journal_commit_transaction+0x968/0x10c2 [<ffffffff8003d7d9>] lock_timer_base+0x1b/0x3c [<ffffffff880376a3>] :jbd:kjournald+0xc1/0x213 [<ffffffff800a34a8>] autoremove_wake_function+0x0/0x2e [<ffffffff880375e2>] :jbd:kjournald+0x0/0x213 [<ffffffff800a3290>] keventd_create_kthread+0x0/0xc4 [<ffffffff8003264c>] kthread+0xfe/0x132 [<ffffffff8005dfb1>] child_rip+0xa/0x11 [<ffffffff800a3290>] keventd_create_kthread+0x0/0xc4 [<ffffffff8003254e>] kthread+0x0/0x132 [<ffffffff8005dfa7>] child_rip+0x0/0x11 INFO: task VBoxHeadless:20743 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. VBoxHeadless D ffffffff801563dc 0 20743 1 20742 (NOTLB) ffff8107717ebd98 0000000000000086 0000000c717ebd18 0000000000000001 0000000400000000 000000000000000a ffff810b3acfb040 ffff810c400a4040 0011dd0835789020 00000000000161a0 ffff810b3acfb228 0000000400000092 Call Trace: [<ffffffff88036e55>] :jbd:log_wait_commit+0xa3/0xf5 [<ffffffff800a34a8>] autoremove_wake_function+0x0/0x2e [<ffffffff8803179a>] :jbd:journal_stop+0x1d3/0x203 [<ffffffff8002f96a>] __writeback_single_inode+0x1dd/0x31c [<ffffffff800f7454>] sync_inode+0x24/0x33 [<ffffffff8804c37e>] :ext3:ext3_sync_file+0xce/0xf8 [<ffffffff8004fe60>] do_fsync+0x52/0xa4 [<ffffffff800e48c9>] __do_fsync+0x23/0x36 [<ffffffff8005d28d>] tracesys+0xd5/0xe0 INFO: task VBoxHeadless:20743 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. VBoxHeadless D ffffffff801563dc 0 20743 1 20742 (NOTLB) ffff8107717ebd98 0000000000000086 0000000c717ebd18 0000000000000001 0000000400000000 000000000000000a ffff810b3acfb040 ffff810c400a4040 0011dd0835789020 00000000000161a0 ffff810b3acfb228 0000000400000092 Call Trace: [<ffffffff88036e55>] :jbd:log_wait_commit+0xa3/0xf5 [<ffffffff800a34a8>] autoremove_wake_function+0x0/0x2e [<ffffffff8803179a>] :jbd:journal_stop+0x1d3/0x203 [<ffffffff8002f96a>] __writeback_single_inode+0x1dd/0x31c [<ffffffff800f7454>] sync_inode+0x24/0x33 [<ffffffff8804c37e>] :ext3:ext3_sync_file+0xce/0xf8 [<ffffffff8004fe60>] do_fsync+0x52/0xa4 [<ffffffff800e48c9>] __do_fsync+0x23/0x36 [<ffffffff8005d28d>] tracesys+0xd5/0xe0 Thanks

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cluster.conf validating, but cman not starting
by Dirk 05 Jun '12

05 Jun '12

Hi all, since the last yum update cman does not start any more with the following entries in /var/log/messages: > Jun 5 20:50:39 pclus1cent6-02 corosync[1852]: [MAIN ] Corosync > Cluster Engine ('1.4.1'): started and ready to provide service. > Jun 5 20:50:39 pclus1cent6-02 corosync[1852]: [MAIN ] Corosync > built-in features: nss dbus rdma snmp > Jun 5 20:50:39 pclus1cent6-02 corosync[1852]: [MAIN ] Successfully > read config from /etc/cluster/cluster.conf > Jun 5 20:50:39 pclus1cent6-02 corosync[1852]: [MAIN ] Successfully > parsed cman config > Jun 5 20:50:39 pclus1cent6-02 corosync[1852]: [MAIN ] parse error > in config: parse error in config: . > Jun 5 20:50:39 pclus1cent6-02 corosync[1852]: [MAIN ] Corosync > Cluster Engine exiting with status 8 at main.c:1680 But the cluster config is okay: > [root@pclus1cent6-02 ~]# ccs_config_validate > Configuration validates Before the last yum update the cluster config was okay, cman started. The config has not been changed. Has anyone run into this problem? Even disabling config validation in /etc/sysconfig/cman does not change this behaviour. I am lost, and my cluster does not start. Any hint or help is highly appreciated. Dirk

2 1

Re: [CentOS] Dual NVidia cards, dual monitor
by Steven Chall 05 Jun '12

05 Jun '12

> Steven Chall wrote: > > I've just installed CentOS 6.2 on an HP xw8600 with two NVidia GeForce > > 8800 GT video cards in it. I have two Dell monitors than ran configured > > as a single contiguous desktop when this was a Windows 7 machine. I've > > only been able to access one of the two monitors under CentOS, although > > the system demonstrates some awareness of the second GPU/monitor, because > <snip> > Either install the proprietary NVidia driver, d/l from their website, by > hand, or install kmod-nvidia from elrepo, which will build it > automagically. In either case, it will install an NVidia control panel in > your menus, and you can select twinview. > > mark, on a Dell Precision with that as he types > <snip> Thanks, Mark, B.J., the elrepo route worked. There was a small hitch in that the "Twinview" option wasn't available (it was present but grayed out) on the NVidia control panel, but entering nvidia-xconfig --twinview on the command line as root did the trick. Steve -Steve Chall Senior Research Software Developer Renaissance Computing Institute (RENCI) Phone: 919-681-9639 Email: stevec(a)renci.org

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What to use on CentOS 6.2 w/ an Epson Stylus Photo 2200
by m.roth＠5-cent.us 05 Jun '12

05 Jun '12

Epson doesn't seem to have one; I see an rpm at openprinting.org, but that .rpm d/l I started around 11:30 my time, and the d/l slowed, and slowed, and it's been at 21% and "1 hr 17 min to go" for it seems like close to half an hour. I d/l a tar.bz2, but I'm not sure I want to build and install it - my use of this printer is temporary, and I want to be able to uninstall it all. I also can't seem to find what some of the Epson drivers in the std. CentOS CUPS packages handle. Anyone have any pointers? mark

2 2

How to rotate PHP error log - since it belongs to apache
by Alexander Farber 05 Jun '12

05 Jun '12

Hello, I'm using CentOS 6.2 with the stock rpm php-5.3.3-3.el6_2.8.x86_64 and the following /etc/php.ini file: error_reporting = E_ALL & ~E_DEPRECATED display_errors = Off error_log = /var/log/php/php_errors.log and that file is very useful for me because I have many custom PHP-scripts at my site, but that file keeps growing too... :-) So my question is for how to rotate it (esp. since it should be owned by "apache" user) - what do you guys use? Regards Alex

4 5

mysql
by Steve Clark 05 Jun '12

05 Jun '12

Hello List, I see that installing mysql in Centos 6.x creates a mysql user with a login shell of /bin/bash. Is a default password also installed? I certainly hope not, but it makes me nervous. -- Stephen Clark *NetWolves* Director of Technology Phone: 813-579-3200 Fax: 813-882-0209 Email: steve.clark(a)netwolves.com http://www.netwolves.com

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rsyslog.conf - why the "-" in this entry? mail.* -/var/log/maillog
by James B. Byrne 05 Jun '12

05 Jun '12

In dealing with an unrelated issue I came across this in rsyslog.conf. # The authpriv file has restricted access. authpriv.* /var/log/secure # Log all the mail messages in one place. mail.* -/var/log/maillog # Log cron stuff cron.* /var/log/cron Why is there a "-" before /var/log/maillog? This character is not present before any of the other log files specified in /etc/rsyslog.conf. I have looked in the documents to discover the purpose of the leading "-" character in the mail log file specification but either I missed the reference or it is not there to be found. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

5 5

custom kernel build
by Jerry Geis 05 Jun '12

05 Jun '12

Hi all, I have donwloaded 2.6.32.59 from kernel.org, extracted the source, did make menuconfig to select/deselect items then did make bzImage, make modules, make modules_install, make install and rebooted. first message I got was that ext4 was not supported. So I verified that ext4 was selected and it was. So I looked at the size of the /boot/initramfs* items. My custom one is really small compared to the normal one. My question is - what controls the items that get put in there (the initramfs stuff) when you do a "make install" for a custom kernel? Clearly it is not picking up the "normal" centos items that are in the other initramfs files. Thanks, Jerry

2 3

gnome / gdm mess
by Philippe Naudin 05 Jun '12

05 Jun '12

Hello, My first attempt to install Gnome is not a bright success. If I boot in runlevel 5, using gdm, I get the login screen, but after login I get sometimes only the root window (no icons, no toolbar, no menu, nothing but keyboard shortcuts), sometimes the icons are here but not the toolbars... If I use startx from runlevel 3, everything is fine. As I don't know Gnome, I have very probably messed something during install (CentOS-6, x86_64, using uptodate netinstall iso, starting from Minimal Desktop). But I have no clue about where to look, or how to debug it. Can someone point me to some useful doc ? P.S. I'm surprised to see gdm and X running on tty1 (in runlevel 5, not 3). Is it correct ? Thanks for your help, -- Philippe Naudin

2 1

R packaging question
by Weiner, Michael 05 Jun '12

05 Jun '12

I have been working on packaging (for internal use only) multiple versions of R (eg 2.14.1, 2.14.2, 2.15.0) such that I can install these RPMs and provide the different versions of R (especially 2.14.x and 2.15.x) to the biostatisticians that require them. I have been messing around with the R.spec file but I have been unable to get the package to provide R in the location I would like: /usr/lib64/R-2.14.1/ /usr/lib64/R-2.15.0/ Now I know this can be done but I am just having some difficulty in getting it to work correctly. I have tried multiple variations in the spec playing with adding -%{version} to the paths within the spec file, as well as even using -libdir=/usr/lib64/R-%{version} which works to a point, but basically provides: /usr/lib64/R-2.14.1/R/ /usr/lib64/R-2.15.0/R/ I have attached the spec file I have been modifying and would appreciate any insights into getting this packaging correct. Thank you in advance for any assistance Michael Weiner =================================== Please consider the environment before printing this e-mail Cleveland Clinic is ranked one of the top hospitals in America by U.S.News & World Report (2010). Visit us online at http://www.clevelandclinic.org for a complete listing of our services, staff and locations. Confidentiality Note: This message is intended for use only by the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. Thank you.

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