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| mjg59 | BenC: Why is EDD turned off? | 12:44 |
|---|---|---|
| BenC | remind me what the hell it is | 12:45 |
| mjg59 | It's used to let the OS know what the BIOS thinks about attached drives | 12:45 |
| mjg59 | Which lets us work out which drive corresponds to 0x80, which to 0x81 and so on | 12:45 |
| BenC | it also totally borks a whole class of system to where it can't boot | 12:46 |
| mjg59 | Then we need to fix that | 12:47 |
| mjg59 | But, uh, wasn't it built as a module? | 12:47 |
| BenC | * 33939: Disable CONFIG_EDD. Causing problems, and not needed anyway. | 12:48 |
| BenC | Symptons were seemingly locked up after grub jumped to kernel, but | 12:48 |
| BenC | actually would boot after 2 minute delay. | 12:48 |
| BenC | EDD enables things in arch/ or something | 12:48 |
| BenC | disabled over a year ago | 12:48 |
| BenC | so was disabled for dapper release | 12:49 |
| BenC | left disabled in edgy | 12:49 |
| mjg59 | Well, we're going to need it to fix a class of bugs | 12:50 |
| BenC | rgrep CONFIG_EDD arch/i386/boot/ | 12:50 |
| BenC | it does some junk in the boot wrapper it seems | 12:50 |
| BenC | maybe we can just disable that part | 12:50 |
| mjg59 | Hm. Yeah, I guess it has to do the call at boot time. | 12:50 |
| mjg59 | However, there's no other way of working out whether sda or sdb is the boot drive | 12:51 |
| BenC | is that because of libata not working as well as ide drivers for getting that info? | 12:52 |
| BenC | or was it like hda == 0x80 always? | 12:52 |
| mjg59 | hda was /usually/ 0x80 | 12:53 |
| mjg59 | But there's no way of guaranteeing that | 12:53 |
| BenC | hmm...I think I might have a machine that hung with EDD enabled | 12:54 |
| mjg59 | Now that ide and scsi drives are in the same namespace, there's more risk of collisions | 12:55 |
| mrec | BenC: do you know about any issues with uvc webcams? | 12:56 |
| BenC | mrec: I don't know about uvc at all, just that I put the module in there :) | 12:57 |
| mrec | I wonder because I received such a device and the linux-uvc driver (usb video class) just crashes it | 12:57 |
| mrec | the company which sent the cam to me told me it will work with 1 gig ram (most of it will be used for the driver) | 12:58 |
| mrec | with video4linux/dvb regarding support for the 60 additional devices we had several discussions on the ML now | 12:59 |
| mrec | code will be merged regardless of what some people say since they aren't willing to help either | 01:00 |
| mrec | (well just 2 people were against it :) | 01:00 |
| BenC | ok | 01:06 |
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| defendguin | still working on feisty bugs? | 01:28 |
| jb-home | defendguin: Critical ones only. | 01:34 |
| defendguin | my touchpad is critically broken after suspend | 01:34 |
| defendguin | very very annoying if you forget your mouse | 01:35 |
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| defendguin | bug 82860 | 01:38 |
| jb-home | If there's a bug filed, I'm sure it'll be triaged and such. | 01:39 |
| jb-home | Given that the release just happened, I wouldn't expect to hear from anyone this weekend though. | 01:39 |
| defendguin | i've been very proactive about the bugs that i have and can help with | 01:41 |
| mjg59 | defendguin: In most cases, the only ways you can be helpful are to test patches or fix the bug yourself | 01:45 |
| mjg59 | These things are very hard to track down without access to the hardware | 01:46 |
| defendguin | providing timely access to information? | 01:46 |
| defendguin | i'm sure i could test patches | 01:47 |
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| steb | how do i boot to install a new kernel if none of my kernels work? | 03:29 |
| jb-home | steb: #ubuntu is better for these types of questions. | 03:48 |
| jb-home | steb: But I'd suggest a known-working livecd. | 03:48 |
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| vimalg2 | can anyone explain why the power management on ubuntu reduces my laptop's battery life by half. Aren't APM and ACPI industry standards? | 05:22 |
| poningru | yes and no | 05:22 |
| poningru | acpi is the modern industry standard | 05:22 |
| vimalg2 | oh ok. | 05:23 |
| poningru | the only trouble is that most laptop manufacturers implement it | 05:23 |
| poningru | poorly | 05:23 |
| vimalg2 | why do some lapt-top installation guides reccomend turning off acpi during installation? | 05:23 |
| poningru | whether this is malicious or not is not known | 05:23 |
| poningru | vimalg2: because other wise you cant install it at all | 05:23 |
| vimalg2 | poningru: thanks . | 05:23 |
| poningru | but those cases have been mostly removed... but BenC or cjwatson are better candidates to answer that particular question | 05:24 |
| poningru | vimalg2: for example there are many many scripts for acpi that are setup for specific laptops | 05:24 |
| vimalg2 | poningru: oh. I've never had to do the acpi=off setting ever for debian-based distros. I've had trouble getting it on my buddies notebooks | 05:25 |
| BenC | vimalg2: battery life is probably more to do with your cpufreq than acpi | 05:25 |
| BenC | never do acpi=off on a laptop...then you have pretty much a desktop on a battery | 05:26 |
| BenC | no suspend, not battery reporting, no nothing | 05:26 |
| vimalg2 | BenC: I'm on Nehemiah. The associated kernel module is langhaul I believe for cpu-scaling. | 05:26 |
| BenC | vimalg2: then check your cpu state in /sys/ | 05:26 |
| vimalg2 | Is it in a usable state in Feisty.(I'm still downloading the ISO's) | 05:26 |
| BenC | check the freq, scaling governor, etc. | 05:26 |
| vimalg2 | Via nehemian CPUID 0698 | 05:27 |
| vimalg2 | BenC: i'm still figuring out how to get internet access to my hone(It doesnt have a PPP dial-up profile) Ironically the cell phone runs a 2.4.x moontavista kernel. So i have to play with NAT and the route command to get the traffic into Ubuntu/*nix. | 05:28 |
| vimalg2 | So i'm stuck with et access in windows | 05:29 |
| vimalg2 | *net | 05:29 |
| BenC | you're actually getting into #ubuntu type questions and topics here | 05:29 |
| BenC | most of this stuff can be answered in the wiki, or from folks in that channel | 05:30 |
| vimalg2 | BenC: thank you for your time. I was just curious about the state of power management and cpu-scaling for CMOV instruction enabled Nehemiah procesors | 05:30 |
| vimalg2 | I'll just poke around i guess. thanks :) | 05:31 |
| BenC | vimalg2: we've enabled everything the kernel supports :) | 05:31 |
| BenC | np | 05:31 |
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| \sh | guys, anyone has a clue how to replace linux/config.h with something which is in linux-headers? | 02:51 |
| \sh | (feisty 2.6.20-15-generic image) just trying to compile cisco vpn client | 02:51 |
| jb-home | \sh: Just don't include it and hardcode the defines. | 03:06 |
| jb-home | The use of config.h is trying to detect what's in your current kernel. | 03:06 |
| jb-home | It's generally just a Bad Idea(tm) | 03:06 |
| jb-home | If you're compiling something for distribution, it's always better to do a runtime check for features. | 03:07 |
| \sh | jb-home: well, I found a patch already | 03:07 |
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| === ..[topic/#ubuntu-kernel:BenC] : Ubuntu kernel development discussion ONLY | Kernel Wiki: https://wiki.ubuntu.com/KernelTeam | Gutsy tree opened, new build system started. | ||
| maks_ | congrats for the release :) | 05:10 |
| kylem | thanks maks. | 05:11 |
| BenC | well, guess I'm going to give this 2.6.21 build a test run...brb | 05:14 |
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| BenC | well, it booted :) | 05:25 |
| maks_ | dynticks? | 05:25 |
| BenC | $ grep NO_HZ /boot/config-2.6.21-1-generic | 05:26 |
| BenC | CONFIG_NO_HZ=y | 05:26 |
| kylem | woot. | 05:26 |
| BenC | not running it right now...I've got to get lrm compiled with it | 05:27 |
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| penguin42 | Can anyone suggest anything for checking my kernels idea of timing? movie player is playing way faster than real time and I've got a 'Your time source seems to be instable or some driver is hogging interrupts' error - so I wonder if something is going odd (on Feisty) | 05:40 |
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| penguin42 | it's a laptop so I also wonder if something is trying to be too clever and then not coping with varying cpu clocks | 05:43 |
| BenC | penguin42: is it an AMD cpu? | 05:44 |
| penguin42 | no, core2 duo (in 64 bit mode) | 05:47 |
| BenC | I've not heard of those issues | 05:48 |
| BenC | have you tried in 32-bit? | 05:48 |
| BenC | to be honest, 64-bit mode really doesn't buy you a whole lot, and it keeps you from being able to use things like flashplayer | 05:48 |
| penguin42 | no I haven't yet - most stuff seems to be running fine; but as I say movie player is odd (which I've not seen before) | 05:48 |
| penguin42 | I've got flash going using nspluginwrapper - that is reasonably good | 05:48 |
| === penguin42 just wondered if there was a test program anywhere that ran the ALSA/old-fashioned/HPET/any other timers off against each other | ||
| jb-home | penguin42: Ah nice. I had no luck with nspluginwrapper. | 05:54 |
| jb-home | penguin42: Is it hard to build? It would be really nice to have that in the archive. | 05:55 |
| penguin42 | jb-home: I got a prebuilt one - there is a bug filed somewhere asking for it to be packaged | 05:55 |
| penguin42 | jb-home: It's not perfect (e.g. I see errors in the logs about some plugin trying to use the gnome theme engine and of course it's trying to pick up the 64bit one); and I've got a couple of flash issues I've never seen on a native flash | 05:56 |
| === penguin42 has this quaint belief that I've got 64 bits and I'm going to use them :-) (even if it's slower and a pita!) | ||
| BenC | penguin42: have you installed ia32-libs-gtk? | 05:59 |
| penguin42 | BenC: Yep | 05:59 |
| BenC | penguin42: also, you may be able to disable HPET in your BIOS and see if that helps | 05:59 |
| BenC | I've seen problems with it before | 05:59 |
| penguin42 | I wouldn't bet that the BIOS can disable it - I assume there is a kernel param? | 06:00 |
| BenC | hpet=off | 06:35 |
| BenC | I know for sure at least 3 of my boxes can disable hpet in BIOS | 06:35 |
| penguin42 | ok, I'll give that a go on my next reboot | 06:36 |
| penguin42 | Thanks | 06:36 |
| BenC | np | 06:43 |
| penguin42 | hmm I suspect HPET isn't used anyway - I found a test program in Documentation/hpet.txt and whenever it tries to do anything there is an error in dmesg 'IRQ handler type mismatch for IRQ 8 current handler: rtc' and a backtrace | 06:49 |
| BenC | penguin42: actually, that looks more like it is used, since rtc module is already grabbing the IRQ | 07:06 |
| BenC | or not, hard to tell from that | 07:07 |
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| penguin42 | there are so many timer related messages in dmesg it's difficult for me to know - there is mention of APIC timer,then Using 14.318180 MHz WALL HPET GTOD HPET timer, ah then there is mention of hpet0 (3 timrs with IRQs 2,8,0) so I guess it is used | 07:15 |
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| BenC | yay, lrm builds against 2.6.21 without a hitch | 08:16 |
| kylem | good work old bean. | 08:17 |
| kylem | :) | 08:17 |
| BenC | time to reboot and really give this a test | 08:18 |
| BenC | cheerio chap | 08:19 |
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| BenC | Linux cunning 2.6.21-1-generic #1 SMP Sat Apr 21 13:37:35 EDT 2007 i686 GNU/Linux | 08:26 |
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| simira | BenC: do you know if the laptop/hibernate/acpi problem were solved before release? | 12:04 |
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| dade` | BenC: !!! | 12:05 |
| dade` | where are you ? | 12:05 |
| dade` | i can try now if you remember me that command. | 12:09 |
| dade` | for piix | 12:09 |
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