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| jmg | hello all | 05:28 |
|---|---|---|
| jmg | what is the reference way to build a -generic kernel from the linux-source package? | 05:29 |
| crimsun | apt-get source linux-image-$(uname -r) | 05:35 |
| crimsun | then use debian/rules's target | 05:36 |
| jmg | is that how the pbuilder does it? | 05:39 |
| crimsun | yes | 05:41 |
| crimsun | depending whether you're using feisty or gutsy, you'll need to remove the unneeded configs | 05:41 |
| crimsun | please see the kernel wiki (/topic) | 05:42 |
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| jmg | thanks | 06:08 |
| jmg | crimsun: im trying to compile the gutsy 2.6.22 kernel for feisty (to work around my sdhc bug) | 06:09 |
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| BenC | jmg: here's a better idea, just install the gutsy kernel on feisty | 06:35 |
| BenC | doesn't matter where it is compiled | 06:35 |
| jmg | orly? | 06:35 |
| jmg | it'll work? | 06:35 |
| BenC | I wouldn't tell you to do it if it would break :) | 06:35 |
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| jmg | BenC: thanks! :) | 06:59 |
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| === Starting logfile irclogs/ubuntu-kernel.log | ||
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| === Topic for #ubuntu-kernel: Ubuntu kernel development discussion ONLY | Kernel Wiki: https://wiki.ubuntu.com/KernelTeam | Latest kernel upload: 2.6.22-6.12 | Latest news: -rt and -xen kernels removed, failures in patch | linux-meta uploaded for gutsy 2.6.22 kernels. | New Kernel Team machine: http://kernel.ubuntu.com/ | ||
| === Topic (#ubuntu-kernel): set by crimsun at Wed May 30 22:40:12 2007 | ||
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| Lure | any reason we do not enable CONFIG_SND_AC97_POWER_SAVE as suggested by powertop? | 11:45 |
| crimsun | it's very, very experimental. | 11:45 |
| crimsun | last I used it in the feisty round, it did Interesting Things on several machines running emu10k1- and intel8x0- driven boards. | 11:45 |
| crimsun | I can rerun some tests (and more testing is appreciated), but I don't expect things to have changed much. | 11:46 |
| crimsun | I suppose we need more hda-intel coverage, too. | 11:46 |
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| Lure | crimsun: ok, I may try it here next time I build my custom kernel | 11:52 |
| mjg59 | crimsun: It does nothing with hda-intel | 12:15 |
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| jmg | BenC: I just realised - i need the nvidia binary drivers | 01:09 |
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| ph8 | hey guys - is anyone aware of a patch/driver/fix for "Atheros Communications Inc." "Unknown device 001c" "Unknown Device 1033" (From Abit Comp. Corp)? - It's an ethernet controller | 01:34 |
| ph8 | atm i can only boot in recovery mode for some reason and the only difference i can find is that non-recovery tries to start networks | 01:34 |
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| ph8 | i'd like to try networks from recovery but have no idea how to get the OS to 'mount' the network cards | 01:34 |
| lfittl | hm, does anybody know what happened to the linux/ip6_tunnel.h header, debian linux-headers package has it, ubuntu doesn't? | 01:36 |
| ivoks | we should add DAC960.ko to /lib/modules inside initrd, by default :/ | 02:04 |
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| shawarma | Was there a recent kernel update for Feisty? | 06:52 |
| ivoks | yes | 06:54 |
| shawarma | Crap. My girlfriend's laptop doesn't boot anymore. | 06:54 |
| ivoks | sda<->hda change | 06:54 |
| rtg | shawarma: If you turn off 'quiet splash' from the grub menu, do you see USB crashes? Or does it just fail to boot? | 06:56 |
| shawarma | rtg: It's using lilo.. | 06:56 |
| shawarma | rtg: ah, and it boots with the old kernel. | 06:56 |
| shawarma | rtg: I'll switch to grub, and grab some debug info. | 06:56 |
| ivoks | lots of people reported that with new kernel their disks aren't sdx anymore, but hdx... | 06:57 |
| rtg | shawarma: You'll have to ask BenC about that one. I know vanishingly little about lilo. | 06:57 |
| shawarma | rtg: Ah, don't worry about that. | 06:57 |
| shawarma | rtg: I got it. | 06:57 |
| rtg | ivoks: You are talking about the lib-ata transition from edgy to feisty. I think shawarma already had feisty installed. | 06:57 |
| ivoks | no, i'm talking about feisty old kernel to feisty new kernel | 06:58 |
| ivoks | there are bugs about it | 06:58 |
| shawarma | Now, that's odd. "No ACPI support in kernel" with the old kernel. There used to be.. | 07:00 |
| shawarma | Oh, ffs.. | 07:07 |
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| shawarma | That's odd. It boots just fine with grub. | 07:15 |
| shawarma | Does that make any sense at all? | 07:21 |
| mjg59 | shawarma: Do you have root=/dev/sda set in lilo.conf? | 07:22 |
| mjg59 | Rather than root=uuid=foo? | 07:22 |
| pkl_ | shawarma: yup, grub probably uses UUIDs in the meu.lst file, Lilo probably hard codes /dev/sdX | 07:22 |
| shawarma | mjg59: It says root=/dev/hda3 | 07:23 |
| mjg59 | shawarma: That's probably wrong | 07:23 |
| pkl_ | shawarma: where is your root partition now? | 07:23 |
| shawarma | mjg59: But lilo shouldn't worry about that, should it? It installed the new kernel while the old one was running.. Looked up /dev/hda3 to be the third partition on the first harddrive and when rebooting it would just use that? Or have I not understood lilo at all? | 07:24 |
| shawarma | pkl_: Interestingly, it's the same. | 07:24 |
| shawarma | pkl_: So nothing has changed w.r.t. device names. | 07:24 |
| mjg59 | shawarma: It passes that argument to the kernel | 07:24 |
| shawarma | mjg59: Doh.. Of course. | 07:25 |
| shawarma | mjg59: Nevertheless: It's the same name. | 07:25 |
| pkl_ | shawarma: how far does the boot get? Do you get past the LILO message? | 07:26 |
| shawarma | When I came to the machine it was in an initramfs prompt. When I rebooted it, I got impatient, booted the old kernel and fixed it.. It would have been interesting to find out what went wrong. | 07:26 |
| shawarma | I suppose I could reinstall lilo just for kicks if you're interested? | 07:27 |
| pkl_ | reinstalling lilo would probably make the problem go away anyway. | 07:27 |
| shawarma | You think? If I do it with the old kernel running? | 07:28 |
| pkl_ | shawarma: hmm, it may not work with the old kernel no. | 07:30 |
| shawarma | Would it be helpful in any way to get some debugging info this way? | 07:31 |
| maks_ | no you should just use uuid ;) | 07:31 |
| shawarma | Yes.. I wonder why it wasn't migrated back in the day. | 07:32 |
| shawarma | Did we only do it for grub? | 07:32 |
| maks_ | afaik lilo is not directly supported | 07:32 |
| shawarma | raid doesn't work with grub, so it must be supported to some degree. | 07:32 |
| maks_ | why shouldn't it work, sure it does with grub | 07:33 |
| shawarma | Hm.. | 07:36 |
| shawarma | I'm *almost* sure the installer falls back to lilo if you're either using xfs or raid (or both). | 07:36 |
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| maks_ | grub has the xfs patch | 07:41 |
| maks_ | last lilo fallback i know of is when you go all on lvm | 07:41 |
| shawarma | That works with grub. | 07:42 |
| shawarma | I'm almost sure of it. | 07:43 |
| maks_ | hehe *almost* | 07:43 |
| shawarma | I'll try. I've got a feisty install on the way in a virtualbox | 07:44 |
| JanC | grub works with lvm | 07:45 |
| JanC | but you need a non-lvm boot partition then :) | 07:45 |
| maks_ | sure i was speaking of *all* on lvm | 07:46 |
| maks_ | ;) | 07:46 |
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| JanC | why wait until christmas? | 07:49 |
| shawarma | JanC: Good point. | 07:51 |
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| JoseMedina | hi averyone | 08:15 |
| JoseMedina | problems with kacpid process | 08:16 |
| JoseMedina | ?? | 08:16 |
| JoseMedina | on mi Server it's eating 90% of CPU | 08:16 |
| JoseMedina | root@linux:/home/jose# ps aux | grep acpid | 08:18 |
| JoseMedina | root 37 81.9 0.0 0 0 ? R< 12:37 32:29 [kacpid] | 08:18 |
| JoseMedina | help me! please! | 08:19 |
| shawarma | maks_: You're right. LVM-only -> lilo | 08:26 |
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| crimsun | mjg59: right, I'm speaking of upstream's plans for HDA (not AC'97) | 10:03 |
| mjg59 | Ah, ok | 10:04 |
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| Sapote | hi all! | 10:14 |
| Sapote | have a question about limit of processors of support for ubuntu | 10:14 |
| Sapote | how many processor is the limit? 16? 32? 128? 256? | 10:15 |
| Sapote | maxcpus parameter | 10:15 |
| JanC | Sapote: depends on the kernel you use | 10:16 |
| Sapote | smp | 10:17 |
| Sapote | default smp amd64 | 10:17 |
| JanC | so -generic kernel for amd64? | 10:18 |
| JanC | I don't know the exact number, but AFAIK it should be more than enough for any desktop :) | 10:18 |
| Sapote | ;D | 10:19 |
| Sapote | yes.. but i find the magic number | 10:19 |
| JanC | isn't that in the kernel config files? | 10:20 |
| Sapote | maybe | 10:21 |
| JanC | grep for CONFIG_NR_CPUS in the kernel config file of your kernel in /boot/ :) | 10:23 |
| JanC | at least, I think that's the setting you need (I'm no kernel dev) | 10:24 |
| rtg | Sapote: /boot/config-2.6.20-12-generic:CONFIG_NR_CPUS=8 | 10:24 |
| Sapote | 8 ok | 10:25 |
| Sapote | thanks! | 10:25 |
| JanC | I don't think many desktops have more :) | 10:25 |
| JanC | server kernels might have support for more CPUs | 10:26 |
| JanC | rtg: you have amd64, or it's always the same for -generic ? | 10:27 |
| rtg | Sapote: debian/config/i386/config.server-bigiron:CONFIG_NR_CPUS=64 | 10:27 |
| JanC | yeah, server-bigiron is for people with deep pockets :) | 10:27 |
| Sapote | lol! | 10:27 |
| rtg | JanC: generic is the same for i386 and amd64. | 10:27 |
| Sapote | :D | 10:27 |
| Sapote | maxcups parameter 1-256 is correct? | 10:28 |
| JanC | rtg: thanks, good to know, wasn't sure about that :) | 10:28 |
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| rtg | Here are all of the CPU configs: | 10:28 |
| rtg | debian/config/i386/config.server:CONFIG_NR_CPUS=8 | 10:28 |
| rtg | debian/config/i386/config.server-bigiron:CONFIG_NR_CPUS=64 | 10:28 |
| rtg | debian/config/i386/config.generic:CONFIG_NR_CPUS=8 | 10:28 |
| rtg | debian/config/ia64/config:CONFIG_NR_CPUS=64 | 10:28 |
| rtg | debian/config/hppa/config:CONFIG_NR_CPUS=32 | 10:28 |
| rtg | debian/config/amd64/config.server:CONFIG_NR_CPUS=64 | 10:28 |
| rtg | debian/config/amd64/config.generic:CONFIG_NR_CPUS=8 | 10:29 |
| rtg | debian/config/sparc/config.sparc64-smp:CONFIG_NR_CPUS=64 | 10:29 |
| rtg | debian/config/powerpc/config.powerpc-smp:CONFIG_NR_CPUS=4 | 10:29 |
| rtg | debian/config/powerpc/config.powerpc64-smp:CONFIG_NR_CPUS=32 | 10:29 |
| Sapote | thanks rtg, JanC | 10:30 |
| JanC | well, except for the i386 UP kernel :) | 10:30 |
| rtg | JanC: CONFIG_NR_CPUS depends on CONFIG_SMP | 10:34 |
| JanC | so if CONFIG_SMP is not set, NR_CPU == 1 | 10:36 |
| JanC | :) | 10:36 |
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