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usb irq problem
by partha chowdhury 19 Sep '08

19 Sep '08

hallo to all . This is my first post to this list so please bare with me if i have made any mistake . My problem is : after every boot i receive the following message in terminal : > Sep 19 13:13:02 station2 kernel: irq 50: nobody cared (try booting with the "irqpoll" option) > Sep 19 13:13:02 station2 kernel: [<c044e6fa>] __report_bad_irq+0x2b/0x69 > Sep 19 13:13:02 station2 kernel: [<c044e8e7>] note_interrupt+0x1af/0x1e8 > Sep 19 13:13:02 station2 kernel: [<c057afb4>] usb_hcd_irq+0x23/0x50 > Sep 19 13:13:02 station2 kernel: [<c044df27>] handle_IRQ_event+0x23/0x49 > Sep 19 13:13:02 station2 kernel: [<c044dfe8>] __do_IRQ+0x9b/0xd6 > Sep 19 13:13:02 station2 kernel: [<c04073f4>] do_IRQ+0x93/0xae > Sep 19 13:13:02 station2 kernel: [<c040592e>] common_interrupt+0x1a/0x20 > Sep 19 13:13:02 station2 kernel: ======================= > Sep 19 13:13:02 station2 kernel: handlers: > Sep 19 13:13:02 station2 kernel: [<c057af91>] (usb_hcd_irq+0x0/0x50) > Sep 19 13:13:02 station2 kernel: Disabling IRQ #5 And immediately after it my external usb drive vanishes from the nautilus file browser and i get messages like this in /var/log/messages : > usb 2-2: device not accepting address 3, error -110 > Sep 19 14:15:09 station2 kernel: usb 2-2: new high speed USB device using ehci_hcd and address 4 > Sep 19 14:15:21 station2 kernel: usb 2-2: device not accepting address 4, error -110 > Sep 19 14:15:21 station2 kernel: usb 2-2: new high speed USB device using ehci_hcd and address 5 > Sep 19 14:15:31 station2 kernel: usb 2-2: device not accepting address 5, error -110 > Sep 19 14:15:31 station2 kernel: usb 2-2: new high speed USB device using ehci_hcd and address 6 > Sep 19 14:15:42 station2 kernel: usb 2-2: device not accepting address 6, error -110 > Sep 19 14:16:48 station2 kernel: usb 2-4: new high speed USB device using ehci_hcd and address 7 > Sep 19 14:17:00 station2 kernel: usb 2-4: device not accepting address 7, error -110 > Sep 19 14:17:00 station2 kernel: usb 2-4: new high speed USB device using ehci_hcd and address 8 > Sep 19 14:17:11 station2 kernel: usb 2-4: device not accepting address 8, error -110 > and the usb drive does not show up in nautilus any more. Then i have to reboot and after logging into x the drive shows up .but again after some time the same thing happens. please help. i don't know if i have given enough information.so please tell me if any more info is needed. Thanks.

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Security Guide for CentOS/RHEL
by Josh Donovan 19 Sep '08

19 Sep '08

Is there a step by step approach to securing CentOS 4X (or even RHEL 4X)? I don't mean the stuff in the docs/security guide but a working step by step guide? There used to be packages like rkhunter and tripwire but I don't know if the ones in rpmforge/kbs repo are up to date. Thanks, Josh.

5 9

Regd: Ethernet Channel Bonding Clarification is Needed
by Balaji 19 Sep '08

19 Sep '08

Dear All, Please ignore my previous mail I have using CentOS 4.4 Linux and Kernel Version is 2.6.9-42.EL I have configured Cluster Suite with 2 servers Server 1 : 192.168.13.110 IP Address and hostname is primary Server 2 : 192.168.13.179 IP Address and hostname is secondary Floating : 192.168.13.83 IP Address (Assumed by currently active server) I have configured Ethernet Channel Bonding in Each Cluster Nodes and Channel Bonding Configuration Details are 1) Created bonding devices in "/etc/modprobe.conf" file alias bond0 bonding options bonding miimon=100 mode=1 2) Edit the "/etc/sysconfig/network-scripts/ifcfg-eth0 and ifcfg-eth1" configuration DEVICE=eth0 USERCTL= no ONBOOT=yes MASTER=bond0 SLAVE=yes BOOTPROTO=none DEVICE=eth1 USERCTL= no ONBOOT=yes MASTER=bond0 SLAVE=yes BOOTPROTO=none 3) Created a network script for the bonding device is "/etc/sysconfig/network-scripts/ifcfg-bond0" DEVICE=bond0 USERCTL=no ONBOOT=yes NETMASK=255.255.255.0 GATEWAY=192.168.13.1 IPADDR=192.168.13.110 4) Reboot the system for the changes to take effect. After i am rebooted both the server then cluster node becomes simplex and Services are started on both the nodes The cluster output in primary node Member Status: Quorate Member Name Status ----------- --------- primary Online, Local, rgmanager secondary Offline Service Name Owner (Last) State ------------ ------------ -------- Service primary started The cluster output in secondary node Member Status: Quorate Member Name Status ----------- --------- primary Offline secondary Online, Local, rgmanager Service Name Owner (Last) State ------------ -------------- -------- Service secondary started Before Ethernet Channel Bonding cluster services are active in one node and other nodes acts as passive node. But after Ethernet Channel Bonding cluster services are active on both the nodes I don't know what is the problem and is their any configuration is required in cluster configuration file and cman is working only with eth0 interface Can some one throw light on this peculiar problem Regards -S.Balaji

2 1

Squirrelmail not indexing messages correctly
by mbneto 18 Sep '08

18 Sep '08

Hi, I have a Centos 5.2 server with sendmail/dovecot/squirrelmail. One of my users is complaining that some messages are not appearing in the message list. After a quick check I found the message in the /cur directory but this messge does not appear in the message list in the expected order. I can access the message if I check the page X or I use the search. The strange part is that most messages appear ordered by the date but this (and others) does not. I've removed the dovecot* in the Maildir with no luck. Any ideas? Name : squirrelmail Relocations: (not relocatable) Version : 1.4.8 Vendor: CentOS Release : 4.0.1.el5.centos.2 Build Date: Sat 17 Nov 2007 11:28:32 PM AMT Bellow one example of the stat of two messages. The one with modify time 09:28 appears ordered and the other that came later 19:15 does not. File: `/home/user/Maildir/cur/1221744507.8075_0.mail:2,S' Size: 17332 Blocks: 40 IO Block: 4096 regular file Device: 1602h/5634d Inode: 9169256 Links: 1 Access: (0600/-rw-------) Uid: ( 505/ wander) Gid: ( 12/ mail) Access: 2008-09-18 19:16:30.000000000 -0400 Modify: 2008-09-18 09:28:27.000000000 -0400 Change: 2008-09-18 10:35:27.000000000 -0400 File: `/home/user/Maildir/cur/1221775184.14421_0.mail:2,S' Size: 195841 Blocks: 392 IO Block: 4096 regular file Device: 1602h/5634d Inode: 9169266 Links: 1 Access: (0600/-rw-------) Uid: ( 505/ wander) Gid: ( 12/ mail) Access: 2008-09-18 19:15:29.000000000 -0400 Modify: 2008-09-18 17:59:44.000000000 -0400 Change: 2008-09-18 19:10:56.000000000 -0400

1 0

link speed
by Craig White 18 Sep '08

18 Sep '08

Is there a command line way to tell me whether a ethernet connection is 100 BaseT or Gigabit Ethernet? Craig

6 6

How to create a virtual bonded interface?
by John Horne 18 Sep '08

18 Sep '08

Hello, I have a server with 4 NICS running CentOS 5.2. I have bonded the interfaces together such that 'bond0' consists of eth0-3. This is not a problem, and works fine. However, I now need to create a virtual interface. In a non-bonded server I would just create something like eth0:1, but with a bonded interface I am a bit confused. I have created bond0:1 simple by copying the /etc/sysconfig/network-scripts/ifcfg-bond0 file, calling it 'bond0:1' and setting the DEVICE appropriately. Then I ran 'ifup bond0:1'. The interface came up, and seems to be working okay. I have not tested yet if the bonding failover works with bond0:1 because I am doing this remotely at the moment. Tomorrow I should be able to test that. My question is, is creating a virtual bonded interface that simple or have I missed something? Have I done this the right way, or should I instead have created a second bonded interface ('bond1') and made it consist of eth0:1, eth1:1, eth2:1 and eth3:1? Admittedly this would have involved about 8 or so interfaces in total for the server! Secondly, I added nothing to the /etc/modprobe.conf file. Should I have added anything like 'alias bond0:1 bonding'? I also did not add any static routes, yet if I use 'ping' to send packets out through the virtual IP address ping says it is doing so (so again it all seems to be working). My concern is that while it seems to be fine at the moment, and even after rebooting, I may have missed something that will cause it to fail at some point. For info, 'ifconfig' output shows: ============================================================= bond0 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx inet addr:141.163.yy.a Bcast:141.163.yy.yy Mask:255.255.255.224 inet6 addr: abcd::abcd:abcd:abcd:abcd/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:88468 errors:0 dropped:0 overruns:0 frame:0 TX packets:59486 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:80654540 (76.9 MiB) TX bytes:5847688 (5.5 MiB) bond0:1 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx inet addr:141.163.yy.b Bcast:141.163.yy.yy Mask:255.255.255.224 UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 ============================================================= The 'netstat -rn' output shows: ============================================================= Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 141.163.yy.0 0.0.0.0 255.255.255.224 U 0 0 0 bond0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 bond0 0.0.0.0 141.163.yy.30 0.0.0.0 UG 0 0 0 bond0 ============================================================= Shouldn't 'bond0:1' appear there somewhere? Anyone notice if I missed anything? Thanks, John. -- --------------------------------------------------------------- John Horne, University of Plymouth, UK Tel: +44 (0)1752 587287 E-mail: John.Horne(a)plymouth.ac.uk Fax: +44 (0)1752 587001

2 2

USB DVD drive disappearing during kickstart install.
by Alex Tang 18 Sep '08

18 Sep '08

Hi folks. I maintain a bunch of centos based machines that are built using a somewhat stripped down (limited number but mainly stock rpms) centos distro. The installation process is plain anaconda stuff with a kickstart file on the root of the DVD/iso. The current hardware and media i'm using is DVD based. On machines that have internal DVD drives (all IDE CD/DVD drives), everything is fine. However, I'm having a problem that started in 4.6 and continues in 4.7 on machines that don't have an internal DVD drive and therefore i must use a USB DVD drive. On these machines, everything goes ok in the beginning. The DVD is "seen" by the machine and boots fine, the isolinux screen comes up and i let the timeout go or i hit return to continue. Then, almost immediately thereafter, (when i should see the blue screen with text about loading drivers) i see the blue screen with the prompt for language. This is supposed to be a kickstart install, so at this point i know i'm hosed. If I use alt-f3 or alt-f4 (can't remember which one), i can see an error message saying that the usb-storage driver is loaded, but it cannot find any USB storage devices to read from. If i alt-f1 back to the main blue screen with the language prompt, i can go through the prompts for language, keyboard, however when i get to "install type", and select "usb cdrom" (i can't remember the text exactly...the machines are in the server room, and i'm at my desk ATM), it fails again. I can alt-f3 back to see that the same error about loading the usb-storage driver was successful but it can't find any attached usb storage device. Unfortunately, at this point, there's no shell yet available in alt-f2, so i can't poke around much). It seems like somehow, something is happening like the USB bus is being reset and it's "loosing" the usb devices and they can't be found anymore. Note that the original boot occurred of the DVD drive (i got past the isolinux screen), so it's at least working in the beginning to get that far. I had seen this problem occur a handful of times in the past in my same distro based on CentOS-4.5, however it was sporadic and was usually solved by changing the manufacturer of DVD drive (i thought it was a hardware vendor not implementing the USB spec properly since most devices worked...only a handful didn't). However, since moving to 4.6 and also in 4.7, this problem is completely repeatable with all USB DVD drives i have (granted it's only 3 different vendors/models, but they all don't work, whereas all 3 of these used to work in the 4.5 based distro). Also, as i stated earlier, on machines with internal DVD drives (IDE based), everything works fine. Has anyone seen anything like this? Do you have any suggestions to try? One thing i'm going to try is downloading the stock 4.7 DVD ISO and see if it fails. The download is taking a while, so i won't be able to report back on that test until tomorrow. Oh yeah, the machines i'm using that are having this problem are a Dell R200, Supermicro PDSMi, and Supermicro P4SC8. I don't have the DVD drive mfg and model numbers handy, i'll get those as well. Any help would be greatly appreciated. Thanks. ...alex...

6 7

email and MS outlook
by Mag Gam 18 Sep '08

18 Sep '08

We use Microsoft Outlook heavy at school but our backed is CentOS. I use echo "Foo" | mail -s "subject" addr(a)unc.edu a lot. Is it possible to change the priority to High so Outlook will understand it? The priority meaning the email will be sent to the normal email queue but on Outlook it would have the exclamation point. TIA

5 4

virt-install -L
by David Dyer-Bennet 18 Sep '08

18 Sep '08

So what does the "location" one gives virt-install point to? Ideally, what directory on the Centos 5.2 DVD should it point to? Or should it point to the ISO image? Or what? I'm getting tired of trying things at random, and the documentation really doesn't tell me anything beyond that it should be a directory (because it says two different files should be there). -- David Dyer-Bennet, dd-b(a)dd-b.net; http://dd-b.net/ Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ Photos: http://dd-b.net/photography/gallery/ Dragaera: http://dragaera.info

1 0

Re: [CentOS] cron job not working
by Al Sparks 18 Sep '08

18 Sep '08

> Probably a permissions problem, as has been noted. What I can't > understand is how the problem came to be so complicated. This, > run as a root cron job, will produce the desired directory: > > #!/bin/bash > mkdir -p /ora-local/db-test-backups/`date +%Y"_"%m"_"%d` > > ...without the adjustments in the perl script. AAMOF, it's even > simpler if you can tolerate hyphen separators rather than > underscores. (date +%F) I'll give that a shot. Note that I have not been running this as root (though crond is running as root). Most of the time, if it's a permissions problem, crond will send an email telling me it's a permissions problem. === Al

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