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mdadm RAID sync speed limitation?
by Tim Nelson 28 Jul '09

28 Jul '09

While creating some arrays this evening, I noticed this line my dmesg: md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. Why is there a 200MBps limitation on the mdadm sync speed? It certainly isn't a concern for my particular systems (15k U320 SCSI) but I can imagine there are much higher end systems that actually could sync at a rate equal to or higher than the limit. Is this limit arbitrary? Based on detected system specs? Limitation of mdadm itself? Just curious. --Tim

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What's the configure specs for the generic Apache install of CentOS x86_64 5.3?
by Al Sparks 28 Jul '09

28 Jul '09

I'm trying to install apache 2.2.x from a tarball. And it works. But I'm also trying to install modsecure, and I can't get that to work. It might help to know what CentOS uses to install Apache when doing the ./configure. === Al

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Help with Intel Driver
by Clint Dilks 28 Jul '09

28 Jul '09

Hi People I have a machine with a Intel Corporation 82Q35 Express Integrated Graphics Controller lspci 00:02.0 VGA compatible controller: Intel Corporation 82Q35 Express Integrated Graphics Controller (rev 02) The xorg.conf is configured to use the "intel' driver and I need to enable 3D Support with DRI. So my question is, Is this possible with the latest updates in CentOS 5 ? At first I believed that this would just involve enabling DRI so I added two sections to the xorg.conf Section "Module" Load "glx" Load "dri" EndSection Section "DRI" Mode 0666 EndSection Upon restarting X glx and dri appear to load but running the command glxinfo | grep rendering I still get direct rendering: No. Some initial research suggests that the "intel' driver may be 2D only? and that building a newer version of the driver from the Intel site is not a straight forward thing to do. Does anyone have any suggestions on how I can get the functionality I need going? Or should I just look at replacing this card with something from Nvidia ? Thank you for any insite you can offer. To see xorg.conf and X log go to http://www.scms.waikato.ac.nz/~clintd/intel/ Sorry if this turns up as a duplicate, I didn't see the message come thorugh so resent

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Problems with Broadcom 4312 wireless
by Milos Blazevic 27 Jul '09

27 Jul '09

Hello David, In brief, I've solved this problem on my Dell Inspiron 1525 (with Broadcom 4312 wireless card), so I figured letting You know would be nice, 'cause it didn't seem like the issue is resolved. Visit this link: http://jomcode.com/fadhil/?p=59 and in addition check out the comment on the same page by Andre Kiepe to have the modules load on boot. Best Regards, Milos.

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perl woes - perl-file-Temp conflict
by Rob Kampen 27 Jul '09

27 Jul '09

Hi all, everytime I play with perl I end up falling on my face. Yesterday, new perl modules available from rf (my chosen repo for perl, perl is excluded from my CentOS-Base), however it did not like an already installed perl-File-Temp, so not recalling it was necessary for my mail system I removed it and allowed the updates. Then when I discovered my mail system no longer working (amavisd installed as per centos wiki) I tried to re-install - finally using --force - but now I have two Temp.pm files and the one I need is not found. Why is it that perl has this really messy structure and allows multiple files / methods of the same name, and thus tripping up the unsuspecting. Now I'm lost as to how to unwind and remove the necessary files from yesterdays update so I can reinstall perl-File-Temp? the error message :- Transaction Check Error: file /usr/share/man/man3/File::Temp.3pm.gz from install of perl-File-Temp-0.22-1.el5.rf.noarch conflicts with file from package perl-5.8.8-18.el5_3.1.i386 From this it appears that the base perl is in conflict, yet yesterdays updated perl files were Jul 26 23:34:17 Updated: perl-DBI-1.609-1.el5.rf.i386 Jul 26 23:34:22 Updated: perl-Net-DNS-0.65-1.el5.rf.i386 Jul 26 23:34:35 Updated: perl-HTML-Parser-3.61-1.el5.rf.i386 Jul 26 23:34:37 Updated: perl-Compress-Raw-Zlib-2.020-1.el5.rf.i386 Jul 26 23:34:41 Updated: perl-Net-SSLeay-1.35-1.el5.rf.i386 Jul 26 23:34:42 Installed: perl-Crypt-OpenSSL-RSA-0.25-1.el5.rf.i386 Jul 26 23:34:43 Updated: 1:perl-Convert-UUlib-1.12-1.el5.rf.i386 Jul 26 23:34:45 Updated: perl-Digest-SHA1-2.12-1.el5.rf.i386 Jul 26 23:35:05 Updated: perl-DBD-mysql-4.012-1.el5.rf.i386 Jul 26 23:35:06 Installed: perl-Compress-Raw-Bzip2-2.020-1.el5.rf.i386 Jul 26 23:35:09 Installed: perl-Digest-SHA-5.47-1.el5.rf.i386 Jul 26 23:35:30 Installed: perl-IO-Compress-2.020-2.el5.rf.noarch Jul 26 23:35:32 Installed: perl-Mail-DKIM-0.36-1.el5.rf.noarch Jul 26 23:35:42 Updated: perl-Package-Constants-0.02-1.el5.rf.noarch Jul 26 23:35:43 Updated: perl-IO-Socket-SSL-1.26-1.el5.rf.noarch Jul 26 23:36:52 Updated: perl-IO-Zlib-1.10-1.el5.rf.noarch Jul 26 23:39:05 Erased: perl-Compress-Zlib Jul 26 23:39:05 Erased: perl-IO-Compress-Base Jul 26 23:39:06 Erased: perl-IO-Compress-Zlib So how do I rewind and get it straight? lost in the maze of perls

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Simple resource manager?
by Eduardo Grosclaude 27 Jul '09

27 Jul '09

I need to serialize computing job requests for two different multicore machines, and in some near future, for a cluster. I have worked with SGE but it requires NFS and other administrative steps, plus it seems a bit overkill for my needs. I guess some simpler queue managing engine may have been developed, possibly over SSH. Any pointers? TIA. -- Eduardo Grosclaude Universidad Nacional del Comahue Neuquen, Argentina

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CentOS-announce Digest, Vol 53, Issue 7
by centos-announce-request＠centos.org 27 Jul '09

27 Jul '09

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2009:1178 Moderate CentOS 3 i386 python - security update (Tru Huynh) 2. CESA-2009:1178 Moderate CentOS 3 x86_64 python - security update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Mon, 27 Jul 2009 17:25:44 +0200 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2009:1178 Moderate CentOS 3 i386 python - security update To: centos-announce(a)centos.org Message-ID: <20090727152544.GC14329(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2009:1178 python security update for CentOS 3 i386: https://rhn.redhat.com/errata/RHSA-2009-1178.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/python-2.2.3-6.11.i386.rpm updates/i386/RPMS/python-devel-2.2.3-6.11.i386.rpm updates/i386/RPMS/python-tools-2.2.3-6.11.i386.rpm updates/i386/RPMS/tkinter-2.2.3-6.11.i386.rpm addons/i386/RPMS/python-docs-2.2.3-6.11.i386.rpm source: updates/SRPMS/python-2.2.3-6.11.src.rpm You may update your CentOS-3 i386 installations by running the command: yum update python\* tkinter Tru -- Tru Huynh (mirrors, CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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SATA DVD Burner / AHCI / CentOS 4.7 (kernel: 2.6.9-78.0.22.EL)
by Robert Heller 27 Jul '09

27 Jul '09

OK, it seems that the kernel I have (stock CentOS 4.7: 2.6.9-78.0.22.EL i686) seems to gronk the nVideo SATA controller in AHCI mode. It is NOT able to deal with the SATA DVD Burner I have. It is a "Sony Optiarc DVD Burner with LightScribe Black SATA Model AD-7241S-0B LightScribe Support". Is there some special magic I need to do? Here is the relevant bit from the boot up (SATA ports 2-6 are empty at present): Jul 26 16:29:27 sauron kernel: ACPI: PCI Interrupt 0000:00:09.0[A] -> GSI 20 (level, low) -> IRQ 201 Jul 26 16:29:27 sauron kernel: MSI INIT SUCCESS Jul 26 16:29:27 sauron kernel: ahci 0000:00:09.0: AHCI 0001.0200 32 slots 6 ports 3 Gbps 0x3f impl SATA mode Jul 26 16:29:27 sauron kernel: ahci 0000:00:09.0: flags: 64bit ncq led clo pmp pio Jul 26 16:29:27 sauron kernel: ata1: SATA max UDMA/133 cmd 0xF8874100 ctl 0x0 bmdma 0x0 irq 58 Jul 26 16:29:27 sauron kernel: ata2: SATA max UDMA/133 cmd 0xF8874180 ctl 0x0 bmdma 0x0 irq 58 Jul 26 16:29:27 sauron kernel: ata3: SATA max UDMA/133 cmd 0xF8874200 ctl 0x0 bmdma 0x0 irq 58 Jul 26 16:29:27 sauron kernel: ata4: SATA max UDMA/133 cmd 0xF8874280 ctl 0x0 bmdma 0x0 irq 58 Jul 26 16:29:27 sauron kernel: ata5: SATA max UDMA/133 cmd 0xF8874300 ctl 0x0 bmdma 0x0 irq 58 Jul 26 16:29:27 sauron kernel: ata6: SATA max UDMA/133 cmd 0xF8874380 ctl 0x0 bmdma 0x0 irq 58 Jul 26 16:29:27 sauron kernel: scsi1 : ahci Jul 26 16:29:27 sauron kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jul 26 16:29:27 sauron kernel: ata1.00: qc timeout (cmd 0xec) Jul 26 16:29:27 sauron kernel: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x104) Jul 26 16:29:27 sauron kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jul 26 16:29:27 sauron kernel: ata1.00: qc timeout (cmd 0xa1) Jul 26 16:29:27 sauron kernel: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x104) Jul 26 16:29:27 sauron kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jul 26 16:29:27 sauron kernel: ata1.00: qc timeout (cmd 0xa1) Jul 26 16:29:27 sauron kernel: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x104) Jul 26 16:29:27 sauron kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jul 26 16:29:27 sauron kernel: scsi2 : ahci Jul 26 16:29:27 sauron kernel: ata2: SATA link down (SStatus 0 SControl 300) Jul 26 16:29:27 sauron kernel: scsi3 : ahci Jul 26 16:29:27 sauron kernel: ata3: SATA link down (SStatus 0 SControl 300) Jul 26 16:29:27 sauron kernel: scsi4 : ahci Jul 26 16:29:27 sauron kernel: ata4: SATA link down (SStatus 0 SControl 300) Jul 26 16:29:27 sauron kernel: scsi5 : ahci Jul 26 16:29:28 sauron kernel: ata5: SATA link down (SStatus 0 SControl 300) Jul 26 16:29:28 sauron kernel: scsi6 : ahci -- Robert Heller -- 978-544-6933 Deepwoods Software -- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows heller(a)deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/

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Centos 5.3, no AHCI on HP DL320 G5p?
by Veiko Kukk 27 Jul '09

27 Jul '09

I have one HP Proliant DL320 G5p, where for some reason, the AHCI mode is not enabled. According to server specs, it should have AHCI/NCQ capability, but ata_piix module gets loaded during bootup, not ahci module. Any ideas how to enable AHCI mode? lspci output: # lspci 00:00.0 Host bridge: Intel Corporation 3200/3210 Chipset DRAM Controller (rev 01) 00:01.0 PCI bridge: Intel Corporation 3200/3210 Chipset Host-Primary PCI Express Bridge (rev 01) 00:06.0 PCI bridge: Intel Corporation 3210 Chipset Host-Secondary PCI Express Bridge (rev 01) 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02) 00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 02) 00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 02) 00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 02) 00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02) 00:1d.3 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92) 00:1f.0 ISA bridge: Intel Corporation 82801IR (ICH9R) LPC Interface Controller (rev 02) 00:1f.2 IDE interface: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 4 port SATA IDE Controller (rev 02) 00:1f.5 IDE interface: Intel Corporation 82801I (ICH9 Family) 2 port SATA IDE Controller (rev 02) 01:02.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev 02) 01:04.0 System peripheral: Compaq Computer Corporation Integrated Lights Out Controller (rev 03) 01:04.2 System peripheral: Compaq Computer Corporation Integrated Lights Out Processor (rev 03) 01:04.4 USB Controller: Hewlett-Packard Company Proliant iLO2 virtual USB controller 01:04.6 IPMI SMIC interface: Hewlett-Packard Company Proliant iLO2 virtual UART 02:00.0 PCI bridge: Broadcom EPB PCI-Express to PCI-X Bridge (rev b5) 03:04.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5715 Gigabit Ethernet (rev a3) 03:04.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5715 Gigabit Ethernet (rev a3) -- Veiko

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named 'wedging' on CentOS 4.7
by Robert Heller 27 Jul '09

27 Jul '09

For some unfathomable reason, named 'wedges' -- becomes unresponsive and needs to be killed (with -9!) and restarted. I am using an intermittent (it is not a dedicated phone line -- I also use it for voice calls), dialup connection to the internet and I am using forwarding (from /etc/named.conf): options { directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; /* * If there is a firewall between you and nameservers you want * to talk to, you might need to uncomment the query-source * directive below. Previous versions of BIND always asked * questions using port 53, but BIND 8.1 uses an unprivileged * port by default. */ // query-source address * port 53; listen-on {127.0.0.1; 192.168.250.1;}; forward first; forwarders { 128.119.100.21; 128.119.100.84; 128.103.38.67; 64.74.153.161; 208.76.56.56; 208.76.62.100; 75.102.60.66; 78.129.207.168; }; notify no; heartbeat-interval 0; interface-interval 0; dialup passive; }; I have a local LAN (right now, just my desktop and my Laptop run most of the time, sometimes other machines are connected and fired up) and use the local named for local DNS requests (I run Apache on this machine with a pile of virtual hosts for web-site testing). Every so often, named just goes south. It can't be restarted (eg '/sbin/service named restart' hangs) -- I have to use killall -9: 'killall -9 named' and then start it up. I am using CentOS 4.7 and the stock bind: sauron.deepsoft.com% rpm -qa | grep ^bind bind-libs-9.2.4-30.el4_7.2 bind-chroot-9.2.4-30.el4_7.2 bind-utils-9.2.4-30.el4_7.2 bind-9.2.4-30.el4_7.2 What should I be checking for? -- Robert Heller -- 978-544-6933 Deepwoods Software -- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows heller(a)deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/

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