=== MTecknology is now known as NoNickAssigned === NoNickAssigned is now known as MTecknology [04:05] http://www.engadget.com/2010/09/18/intel-wants-to-charge-50-to-unlock-stuff-your-cpu-can-already-d/ [07:44] At startup my Maverick Beta computer writes after 1,8 s : "Magic number: 10:86:987". What does this number refer to? === yofel_ is now known as yofel [11:44] At startup my Maverick Beta computer writes after 1,8 s : "Magic number: 10:86:987". What does this number refer to? [11:52] I understand that it designates USERHASH:FILEHASH:DEVHASH. But why does Ubuntu publish these 3 numbers? === yofel_ is now known as yofel [19:46] Hi all [19:48] Is somebody here ? [19:50] I'm trying to compile the kernel using this tutorial: https://wiki.ubuntu.com/KernelTeam/GitKernelBuild [19:50] I'm using Ubuntu 10.10 [19:53] but there are some files *.patch to be applied [19:54] can some one help ? [20:01] hi oracle [20:02] hi [20:02] so many kernel updates recently [20:03] stable candidates, yes [20:04] Do you run an Ubuntu ststem ? [20:06] http://twitter.com/gregkh/status/24873562442 from Greg [20:07] yes i run two ubuntus [20:08] 2.6.27 [20:08] weird [20:11] oh, can you explain how to apply the ubuntu patches, on the latest mainile ? [20:12] the links: http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.36-rc4-maverick/ [20:13] and: https://wiki.ubuntu.com/KernelTeam/GitKernelBuild [20:13] I am not an expert, if you can help ? [20:17] hi chrisccoulson [20:17] hi u456503 [20:18] can you view the last discution ? [20:19] I'm trying to compile the latest kernel [20:21] but there are some patces, not included in mainline [20:22] there is somebody to upstream them ? [20:22] or I am on the wrong channel ? [20:45] in 5 minutes I will quit [21:35] 'ello [21:39] running iotop, get error "CONFIG_TASK_DELAY_ACCT not enabled in kernel, cannot determine SWAPIN and IO %" making it impossible to analyze the iowait pest i'm afflicted with. ubuntu 10.04 kernel 2.6.32-4. [21:40] ttps://bugs.edge.launchpad.net/ubuntu/+source/linux/+bug/532490 [21:40] bug or feature? [21:40] ah. [21:40] h [21:41] its going to be reenabled according to the master bug [21:41] perhaps you need a newer kernel ? [21:42] er. have one handy? not very competent w. linux, btw. [21:42] no, I don't sorry :) [21:43] thought 32-24 was latest. pardon above typo. [21:43] 2.6.32-24 [21:47] lifeless: i have rtfm'ed on the iowait issue, but found no applicable solutions. it arises when running firefox/oolite/amule, and causes said programs to crash after having paralysed my comp (acer notebook) for 2-30 minutes. [21:47] not sure how kernel-related it is. but #ubuntu was mum on the issue. [21:52] I suggest reading up on disk tuning - DMA etc. Could be that. [21:54] hdparm? [21:58] timings look ok. [22:01] 580/46 cached/buffered. nothing spectacular, but not abysmal either. [22:20] Does anyone know how does kernel module loading in Ubuntu work? Is it any different from Gentoo? This is NOT a troll question or something. For example I try to switch cpu into ondemand mode and it explicitly requires I modprobe "powernow-k8". How does Ubuntu handle this? Im just learning a bit. [22:23] sfw: Which requires it? Ubuntu or Gentoo? [22:24] There's no modaliases for CPUs, so it's always necessary to explicitly load cpufreq modules [22:24] Ubuntu (and most sane distributions) have a startup script that looks at your cpu vendor, family and flags and uses that to figure out which module to load [22:25] mjg59: So ubuntu does not use kerneld and uses kernel autoloader? What startupscript are you refering for please, init in initramfs? [22:26] sfw: kerneld? [22:26] It's been a while since I checked exactly how it works in Ubuntu - I /believe/ that it's called /etc/init.d/powernow.something [22:26] I remember pretty good I wasnt required to modprobe powernow with 10.04. It was already somehow loaded. [22:27] Kerneld is from here: http://tldp.org/HOWTO/Kerneld/introduction.html And I got info about it from here:http://tldp.org/HOWTO/Module-HOWTO/index.html [22:29] likely /etc/init.d/ondemand I think [22:29] mjg59, so ubuntu probably uses init.d to automatically load the module. Hm. I just wonder if a program can force kernel module be loaded automatically. In the case of devices its done by udev AFAIK [22:29] hmm. no. that doesn't actually load modules [22:29] I mean it detects devices and issues modload. [22:31] sfw: kerneld doesn't exist in modern kernels [22:31] ah. looks like the powernow stuff is compiled into the kernel, and then /etc/init.d/ondemand sets the ondemand for cpus that supports it. [22:31] mjg59: this is what I was fearing) [22:32] sfw: In the modern world, when a device is created it generates a uevent. That gets picked up by udev, which reads the modalias file and asks modprobe to load any modules with a modalias that matches the device's. CPUs are system devices and don't have modaliases. [22:32] Nafallo: Ok, that pretty clears things up, ty [22:34] mjg59: Thanks a lot for explanation! So software usually should not load or ask to load any kernel modules? [23:53] are there any maverick kernels that have fixed this issue? http://www.h-online.com/open/news/item/Hole-in-Linux-kernel-provides-root-rights-1081317.html [23:53] I'm using the lts maverick backports and it is not fixed.