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4676 discussions

kernel module for RTL8110SC in centos-5 (r1000 vs r8169)
by Farkas Levente 08 Oct '07

08 Oct '07

hi, many intel motherboard use RTL8110SC network adapter. there is a description on page: http://wiki.centos.org/HardwareList/CentOS5/RealTek/r1000 how one can use r1000 kernel module for centos. unfortunately this driver seems to wrong. if you read carefully realtek download page and the latest source of r1000 (1.07) the r1000 is _only_ for 2.4.x kernel and for 2.6 it's called r8169! the worst thing r1000 seems to working most of the time but at random stage it stop working (eg: after init 4). the source you can download from realtek r8168... is more stable on 2.6.x kernel. i try to add this info to the above page, but it's immutable. in the mean time you can download kernel modules from here: http://www.lfarkas.org/linux/packages/centos/5/ -- Levente "Si vis pacem para bellum!"

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Xen crash
by Nicolas Sahlqvist 08 Oct '07

08 Oct '07

Hi Centos-devel, I'm new to this list and joined since I am volunteering as a tech admin for a non profit organization called CouchSurfing (.com) where we tried to move the web servers to Xen zones and this has proven quite unstable since the our defined zones tends to crash on a daily basis with the latest CentOS 5 Xen updates. The physical boxes have 2 quad core 1.6GHz Xeon CPU's and 4 GB RAM, there is currently only 1 domain on each box, configured with 2.2GB RAM. Domain 0: [root@nd10254 ~]# rpm -qa | grep xen xen-libs-3.0.3-25.0.4.el5 kernel-xen-2.6.18-8.1.8.el5 kernel-xen-2.6.18-8.1.14.el5 xen-3.0.3-25.0.4.el5 Web1: [root@web1 ~]# rpm -qa | grep xen kernel-xen-2.6.18-8.1.8.el5 kernel-xen-2.6.18-8.1.14.el5 The Domain0 zone is indeed rock stable, while the Web1 etc. are crashing daily with the 2.6.18-8.1.14 Xen kernel and the stack trace we see after a few hours is as follows: BUG: soft lockup detected on CPU#5! Call Trace: <IRQ> [<ffffffff802a76ad>] softlockup_tick+0xdb/0xed [<ffffffff8026ba66>] timer_interrupt+0x396/0x3f2 [<ffffffff80210a87>] handle_IRQ_event+0x2d/0x60 [<ffffffff802a79ec>] __do_IRQ+0xa4/0x105 [<ffffffff802699b3>] do_IRQ+0xe7/0xf5 [<ffffffff8038dde8>] evtchn_do_upcall+0x86/0xe0 [<ffffffff8025cc1a>] do_hypervisor_callback+0x1e/0x2c <EOI> [<ffffffff802063aa>] hypercall_page+0x3aa/0x1000 [<ffffffff802063aa>] hypercall_page+0x3aa/0x1000 [<ffffffff8026afe2>] raw_safe_halt+0x84/0xa8 [<ffffffff802684f8>] xen_idle+0x38/0x4a [<ffffffff80247bcd>] cpu_idle+0x97/0xba BUG: soft lockup detected on CPU#7! Etc., etc etc, It does not crash the Xen zones directly, but clogs up the Xen web1 console etc. We did not see this when running the 2.6.18-8.1.8 Xen kernel, instead the Xen zones crashed less frequent with a out of memory problem as follows: Call Trace: [<ffffffff802aeefc>] out_of_memory+0x4e/0x1d3 [<ffffffff8020efe8>] __alloc_pages+0x229/0x2b2 [<ffffffff8023fd5b>] __lock_page+0x5e/0x64 [<ffffffff80232637>] read_swap_cache_async+0x42/0xd1 [<ffffffff802b32a2>] swapin_readahead+0x4e/0x77 [<ffffffff8020929d>] __handle_mm_fault+0xae3/0xf46 [<ffffffff80260709>] _spin_lock_irqsave+0x9/0x14 [<ffffffff80262fe8>] do_page_fault+0xe48/0x11dc [<ffffffff80207138>] kmem_cache_free+0x77/0xca [<ffffffff8025cb6f>] error_exit+0x0/0x6e We think the whole problem is how the kernel fails to handle resource cloging (to many interrupts, heavy CPU and memory usage in the defined zones etc.) from stubmbling on some fuzzy posts on the net, example: http://article.gmane.org/gmane.comp.emulators.xen.user/26617 Is this problem known to you or new, any ideas on howto resolve it? Regards, Nicolas Sahlqvist CouchSurfing,.com

2 1

fedora-usermgmt equivalent
by Kenneth Porter 08 Oct '07

08 Oct '07

I'm looking into migrating the openpbx package from Rawhide to Centos, and it has a BuildRequirement on fedora-usermgmt-devel. Is there an equivalent package in CentOS, or how does one structure the spec file to allow building for either distro?

2 1

GFS Update for CentOS 3 kernel 2.4.21-52.EL
by John Newbigin 04 Oct '07

04 Oct '07

1 0

centos build environment.
by Gregory Machin 27 Sep '07

27 Sep '07

Hi I was told by a friend that the Centos project made it's build environment available. How true is this and if it is where do I find it ? Thanks Gregory Machin

3 3

What happend to the yum group "Clustering"
by Stefan Held 25 Sep '07

25 Sep '07

Is it not available anymore? I can't see it through the yum grouplist command. Anything special why the group was removed in silence? -- Stefan Held VI has only 2 Modes: obi unixkiste org The first one is for beeping all the time, FreeNode: foo_bar the second destroys the text. --------------------------------------------------------------------------- perl -e'map{print pack c,($|++?1:13)+ord,select$,,$,,$,,$|}split//,ESEL.$/' --------------------------------------------------------------------------- GPG-Keyprint = 75C0 F029 CA71 F061 6C07 0640 38F7 E5F9 4EA5 A385

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where are the debuginfo rpms?
by Farkas Levente 23 Sep '07

23 Sep '07

hi, where can i find debuginfo rpms for updates? eg: kernel-debuginfo-2.6.18-8.1.10.el5? thanks. -- Levente "Si vis pacem para bellum!"

2 1

Package requests
by Heiko Adams 18 Sep '07

18 Sep '07

Hello, any chance to have xpdf and seamonkey packages in centos extra? Regards, Heiko

3 2

Sun kit available in London
by Karanbir Singh 17 Sep '07

17 Sep '07

hi Guys, There is some Sun Kit ( a few Netra t105 and a couple of E450s ) that might get donated to the Project, if we can find the use for them. I need to get back to the potential donors within this week and let them know. Would anyone be interested in these machines ? They will be available in London - so you need to either organise local hosting yourself or pickup / arrange for pickup from my place. -- Karanbir Singh : http://www.karan.org/ : 2522219@icq

1 0

KDE light?
by Niki Kovacs 14 Sep '07

14 Sep '07

Hi, Allow me to shortly introduce myself, since I'm new to this list. I'm an Austrian sysadmin living in Montpezat (South France). I'm in charge of computers (servers and desktops) in eleven small communities that migrate from Windows to Linux. Institutions like public libraries and town halls get networked, and every Windows installation is replaced by a GNU/Linux system. I had tested various (a dozen or so) distributions, and we finally settled with CentOS (both server and desktop), which we like very much. The current desktop we use is the default GNOME, and XFCE on older hardware. From time to time, I fiddle with the KDE desktop, and my impression is always the same: 1) it's great! 2) it's cluttered! KDE has a series of really great apps (Konqueror file manager, K3B, KMail, ...), but the problem is: it's not very modular. More often than not, one has to install a whole bunch of useless - and often redundant - apps in order to just have one little app. For example, in order to have the music player JuK, I would have to install kdemultimedia-extras, which gives me a whole lot of other players I will never use. I know I'm not the first to complain about this state of things, and various distributions have already taken steps to find a solution. Debian has broken up KDE packages, so you can install just the packages you want. Arch Linux has the kdemod project, which is great also. Gentoo does something similar, IIRC. And there's a german Slackware-based distribution called Pocket Linux which does just that: take the cholesterol out of KDE. So I just thought I would drop a note on the -devel list: to suggest a "KDE Light" project for CentOS. Ideally, I would have a minimal system and X11, and a simple 'yum groupinstall 'KDE Light'' would give me a minimal KDE desktop. I'm curious to have your opinions about this. Cheers, Niki Kovacs

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