| === asac_ is now known as asac | ||
| ceekay | trying to understand how kexec/kdump works and hoping someone might be able to help me out... when i try to kexec -p /vmlinuz --initrd=/initrd --append=root=/dev/sda1, i get "locate_hold failed" anyone able to point me in a direction? cat /proc/iomem shows that i have an entry for "Crash Kernel" (i booted with the crashkernel=64M@16M option) | 02:03 |
|---|---|---|
| ceekay | sorry "locate_hole_failed", not "hold" | 02:03 |
| mkrufky | BenC: fyi, hermann tends to speak to the list in his emails moreso than to those in the to: field ;-) | 02:04 |
| BenC | mkrufky: I gathered :) | 02:12 |
| mkrufky | hehe | 02:12 |
| BenC | ceekay: on intrepid, just install linux-crashdump-generic | 02:13 |
| BenC | ceekay: reboot, and all is good | 02:13 |
| ceekay | benc: I'm trying to backport to 7.04 if that is at all possible :\ | 02:13 |
| ceekay | rather, trying to understand if it is possible | 02:13 |
| ceekay | just pulled the source pkg kexec-tools (20070330-4ubuntu3) from hardy | 02:14 |
| BenC | ceekay: IIRC, 7.04 kexec is broken :) | 02:14 |
| ceekay | it compiles and installs... but i guess the question i'd need to ask here, is does the kernel support it or how can i find out | 02:14 |
| BenC | kexec and/or the kernel | 02:14 |
| ceekay | eek | 02:15 |
| ceekay | there a way i can check? | 02:15 |
| BenC | the kernel supports it, but it's not working | 02:15 |
| BenC | ceekay: if you get the above error, then it doesn't work | 02:15 |
| BenC | ceekay: the kernel supports it, else you wouldn't see the entry in /proc/iomem | 02:15 |
| ceekay | so is a newer kexec-tools not going to resolve this issue? it's broken in 2.6.20-16? | 02:16 |
| ceekay | rather in the kernel itself, not just the kexec tools | 02:16 |
| BenC | right | 02:17 |
| ceekay | quick way to find out i guess... i just ran kexec -p..etcetc... using the new kexec tools package, i didn't get the "locate_hole_failed" error... hit alt+sysrq+c and it appears to have just re-execed the kernel | 02:18 |
| ceekay | would seem to me that it worked | 02:19 |
| ceekay | and i now have an 80MB living in /proc/kcore | 02:20 |
| ceekay | BenC: did i just prove that it works? (i don't want to get too excited here) | 02:21 |
| ceekay | probably a stupid question- how can i get the vmlinux file for a released kernel package (i.e. 2.6.20-16)? do i have to download+extract the kernel source package, copy my /boot/config-2.6.20-16 to /usr/src/linux, then make? | 02:44 |
| ceekay | linux-image-debug seems to have the uncompressed vmlinux but it doesn't appear to match the regular kernel | 02:45 |
| rtg | kirkland: everything is built in my PPA | 03:03 |
| BenC | ceekay: sounds good to me | 03:24 |
| BenC | ceekay: apt-get install linux-image-debug-generic | 03:24 |
| BenC | ceekay: installs the vmlinux with debug symbols that matches the kernel | 03:24 |
| ceekay | BenC: hm... the program "crash" didn't seem to like it...something about mismatched banners | 03:34 |
| ceekay | interesting... using the /etc/init.d/kdump defaults, kexec isn't happy... i think it's the irqpoll option on my system that causes it to get stuck in an infinite loop | 03:36 |
| ceekay | sorry the warning was about linux_banner, but crash seems to error out saying that /boot/vmlinux-2.6.20-16... and /var/crash/kernel.0 (dump that i copied from /dev/kcore after causing a dump) | 03:39 |
| ceekay | don't match | 03:41 |
| BenC | ceekay: probably your kernel is not the latest one, run apt-get update | 03:46 |
| ceekay | BenC: both packages say 2.6.20-16.35 :\ | 03:47 |
| ceekay | i know 2.6.20-17 is out, but as long as these two packages match versions seems like it should work | 03:48 |
| BenC | ceekay: sounds like you have something askew on your system | 03:49 |
| ceekay | quite probable | 03:49 |
| BenC | ceekay: the -debug package is the vmlinux that was used to build the standard vmlinuz kernel | 03:49 |
| BenC | it's not even a separate build, it's an exact match | 03:49 |
| ceekay | BenC: one last question for you.. looking at https://launchpad.net/ubuntu/+source/kexec-tools it appears that you did the scripts to copy the dumpfile somewhere... if i'm looking to backport this to 7.04, is this something that's only in the 8.10 initrd's? | 03:50 |
| BenC | ceekay: you will need kexec-tools, grub and makedumpfile from intrepid | 03:51 |
| ceekay | noticing the boot flag kdump_needed that gets added by /etc/init.d/kdump to the kexec on panic APPEND line | 03:51 |
| ceekay | ah, hadn't realized makedumpfile is a package | 03:52 |
| BenC | it's in universe in intrepid only | 03:52 |
| ceekay | gotcha | 03:52 |
| ceekay | is the new grub really necessary? | 03:52 |
| BenC | yeah | 03:52 |
| ceekay | 7.04 seems to do the crashdump option correctly | 03:52 |
| ceekay | BenC: any specifics on what the new grub does differently? | 03:53 |
| ceekay | last changelog entry i see seems to have been in 7.04 timeframe | 03:55 |
| ceekay | by you :) | 03:55 |
| BenC | ceekay: the crashdump= is handled differently | 03:55 |
| BenC | automatically added | 03:55 |
| ceekay | BenC: crashdump=1 seems to be handled the way i'd expect it to be currently... i set it to 1, run update-grub and then i get a new alt boot option that has the crashkernel64M@16M option appended to it | 03:58 |
| BenC | ceekay: that is removed | 03:59 |
| BenC | but you're free to figure it out on your own :) | 04:00 |
| ceekay | gotcha :) | 04:00 |
| ceekay | thanks so much for you help on this... looks like i have a working backport of current kexec-tools to 7.04... | 04:00 |
| ceekay | only thing i really had to change was removing "irqpoll" from the append list in /etc/init.d/kdump | 04:01 |
| ceekay | BenC: oh and btw... my debug image does seem to work... i think i had a funky crash dump... just did a clean reboot + sysrq/alt/c, then cp /proc/vmcore /var/crash/kernel.0, now crash reads the dump file just fine :) | 04:05 |
| === thegodfather is now known as fabbione | ||
| Kano | hi | 10:09 |
| Kano | did somebody notice that the latest 2.6.26 snapshot (and rc6 i tested before) have got problems with dell vostro 1000? | 10:09 |
| Kano | it only boots when acpi=off - a bit brutal for a laptop | 10:10 |
| Kano | amd chipset with integrated Xpress 1150 gpu | 10:11 |
| penfold_99 | is anyone here working on kvm? | 14:09 |
| zul | penfold_99: #ubuntu-virt | 14:16 |
| === asac_ is now known as asac | ||
| rtg | kirkland: have you talked to upstream about ecryptfs and the fact that the 'eCryptfs: remove unnecessary page decrypt call' patch did not fix the issue? | 14:43 |
| kirkland | rtg: i have a 10am meeting with them today | 14:43 |
| kirkland | rtg: that's tops on the list ;-) | 14:43 |
| rtg | kirkland: cool. I looked through subsequent commits for 2.6.25 and 2.6.26, but didn't see anything that might make a difference. | 14:44 |
| kirkland | rtg: yeah, this is bothering me | 14:44 |
| Kano | rtg: could you add gspca to 2.6.26 | 16:00 |
| === asac_ is now known as asac | ||
| rtg | mdomsch: so how long should a BIOS update take on an Inspiron 1420? A00 --> A08. Its been at the 'Performing BIOS Update...' screen for over 10 minutes. | 16:47 |
| Kano | rtg: also uvcvideo | 16:48 |
| Kano | rtg: dos mode? | 16:48 |
| rtg | Kano: why are you asking me? BenC is the Intrepid dud right now. I'm working on Hardy stability issues. | 16:49 |
| rtg | s/dud/dude/ | 16:49 |
| Kano | but why do you change it then? | 16:50 |
| Kano | when you look at changelog | 16:50 |
| rtg | Kano: because we have changed roles. Look at who has made the last dozen Intrepid commits. | 16:50 |
| Kano | the last was you | 16:51 |
| Kano | when you really look there.. | 16:51 |
| Kano | ok before it was benc | 16:51 |
| rtg | Kano: forward porting a Hardy fix doesn't count. | 16:51 |
| Kano | ;) | 16:51 |
| mkrufky | Kano: can you please lobby the gspca and uvcvideo folks for an upstream merge? | 16:52 |
| rtg | Kano: besides, it would be a hell of a lot easier to keep track of what is missing if you sent an email, or better yet a web page somewhere. IRC logs just get lost. | 16:52 |
| mkrufky | Kano: if they finally merge into upstream, this issue will be solved for _everybody_ | 16:53 |
| Kano | sure, just kanotix users already test you kernels ;) and they missed em *g* | 16:53 |
| mkrufky | Kano: especially us v4l/dvb folks, who are constantly (incorrectly) getting support requests for those two drivers | 16:53 |
| Kano | one system - dell vostro 1000 - does not boot it without acpi=off, any idea | 16:53 |
| rtg | not off-hand. turn off the splash screen during boot and see where it croaks. | 16:54 |
| mdomsch | rtg, not sure, I haven't tried on one of those | 16:54 |
| Kano | well you dont see much | 16:55 |
| mdomsch | rtg, generally not quite that long though; several minutes, but not 10+ | 16:55 |
| rtg | mdomsch: its still flashing. drat. I hope its not toasterized. | 16:55 |
| Kano | i guess it has already problems to access hd | 16:55 |
| Kano | due to missing irqs | 16:56 |
| johanbr | I updated the bios on my 1420 and it didn't take long at all. I didn't time it, but it didn't seem to be longer than a minute. | 16:56 |
| rtg | mdomsch, johanbr - this is one of the original prototypes, so maybe it has other issues. | 16:56 |
| rtg | well, it power cycled OK, but its still at A00. | 16:59 |
| rtg | guess I'll leave it be. | 16:59 |
| BenC | Kano: already said those drivers will get into 2.6.26, then the priority is there | 17:00 |
| Kano | well whats your priority? | 17:00 |
| BenC | Kano: bugging us about it doesn't make it happen any faster | 17:00 |
| BenC | Kano: my priority is getting the tree stable...and I can't even make an upload till after alpha 1, so there's no rush | 17:00 |
| Kano | when is alapha1 planned? | 17:01 |
| BenC | Kano: priority right now is stability and required drivers for booting and testing | 17:01 |
| BenC | Kano: was supposed to be by today, but I haven't been updated on the progress in a few days | 17:02 |
| Kano | i already made a live cd with 2.6.26, no problem booting | 17:02 |
| BenC | Kano: as we've explained before, our criteria for a milestone CD != the same priority for yours | 17:02 |
| BenC | we have milestoned bugs that need to get fixed first, and we have way more testing to do than "boots for Kano" | 17:03 |
| mkrufky | BenC: when should I plan to have my LUM stuff for intrepid ready to pass on to you? | 17:03 |
| BenC | mkrufky: if by lum you mean ubuntu/ in the main tree, then give me something to pull from :) | 17:03 |
| mkrufky | i'm imagining i have a month yet before it matters at all | 17:03 |
| Kano | mkrufky: i thought it is just patched now in like in 2.6.22? | 17:04 |
| mkrufky | Kano: correct, i said LUM by accident | 17:04 |
| BenC | mkrufky: just be aware of the milestones and freezes | 17:04 |
| BenC | mkrufky: initial code drop should be soon, easier to justify patches late in the cycle than full drivers | 17:04 |
| mkrufky | BenC: ok, in that case, is it OK if I wait for 2.6.26 upstream release first? If my hvr950q performance tweaks get in to 2.6.26, then it will be less changes that I'll have for you | 17:05 |
| BenC | mkrufky: Sure, I would think 2.6.26 release would be within a couple weeks timeframe | 17:05 |
| tseliot | Kano: why don't you use DKMS with gspca and uvcvideo (with the sources from upstream) until the kernel team updates the drivers? It should be trivial to do so. | 17:06 |
| mkrufky | yes... hopefully within the week. Linus took a vacation (i think) and he hopes to not push out another -rc | 17:06 |
| mdomsch | rtg, you might try using 'biosdisk' from http://linux.dell.com/projects.shtml#biosdisk, and an EXE from support.dell.com | 17:06 |
| rtg | mdomsch: k. | 17:07 |
| Kano | tseliot: i use something else, just mentioned that these driver are not there where i expected em | 17:07 |
| tseliot | Kano: ah, ok | 17:08 |
| Kano | but as they easyly compile they should be simple to add, not really much time consuming i think | 17:08 |
| Kano | you discuss longer then it actually takes time | 17:09 |
| BenC | Kano: it's not the time, it's working on something that isn't as important as the other things I'm working on | 17:21 |
| * BenC stops explaining priorities to Kano | 17:21 | |
| BenC | Let's make it simple, if I worked on everything that everyone pointed me to that was "simple and quick" it would probably take me 3 weeks to complete all those "simple and quick" tasks | 17:22 |
| BenC | all the while, the difficult, and more important things wouldn't get done | 17:23 |
| Kano | when i do the patch,will you add it? | 17:23 |
| BenC | Kano: it will take me the same amount of time to import your patch as it would for me to cp -a the driver over and add it to the build, so no | 17:23 |
| === mkrufky is now known as mkrufky-lunch | ||
| UlfJack | hi | 18:38 |
| UlfJack | what's the right way to debug a freeze? i've searched on google, but havn't come up with anything definitive. kern.log is empty and the crashdump kernels don't seem to do anything either... | 18:47 |
| rtg | UlfJack: perhaps minimize the number of devices that you have active? | 18:50 |
| UlfJack | memtest passes, and xp seems to run stable as well... | 18:52 |
| rtg | UlfJack: since your IRC sessions comes and goes, I suspect you have a wireless device. | 18:53 |
| UlfJack | i've had to reboot because it freezes | 18:53 |
| rtg | UlfJack: 'it' being a wireless device? | 18:53 |
| UlfJack | no, i'm connected via cable | 18:54 |
| UlfJack | the laptop has a built-in wireless card, but that never worked, so it's switched off in the bios | 18:55 |
| UlfJack | no overclocking, no restricted drivers, i'm trying to narrow it down, but i'm totally stumped | 19:00 |
| UlfJack | i'm not doing anything specific, it just freezes randomly - it doesn't seem to make a difference if i'm using firefox, openoffice, freecell, or just a console | 19:02 |
| BenC | UlfJack: running what version of Ubuntu? | 19:03 |
| UlfJack | 8.04 | 19:03 |
| UlfJack | it happens with the -17, the -19, and the -rt kernels | 19:04 |
| UlfJack | hmm, maybe i should reinstall -18 to see if it freezes too | 19:05 |
| BenC | UlfJack: likely wont help | 19:05 |
| UlfJack | compositing is disabled, too | 19:06 |
| BenC | UlfJack: try running with no network for a bit | 19:06 |
| UlfJack | it also crashes when the network cable is disconnected (in my experience, i didn't just pull the cable ;) | 19:10 |
| UlfJack | i had it crash on me spectacularly when i tried to give a presentation the other day :( | 19:11 |
| BenC | odd | 19:13 |
| BenC | is it a solid lock, or do the caps/num lock leds blink? | 19:13 |
| BenC | BTW, anyone interested, 2.6.26-3.7 is about to be uploaded | 19:14 |
| UlfJack | i'm sorry for the load of join/quit messages, but i have to reboot every 5 min it seems :( | 19:15 |
| johanbr | What's your laptop model? | 19:16 |
| BenC | UlfJack: is it a solid lock, or do the caps/num lock leds blink? | 19:17 |
| UlfJack | it's an old lifebook s60, 1 GHz, 512 MB | 19:17 |
| UlfJack | they don't blink, it just stops (no change on the screen) and ignores alls keyboard/mouse input | 19:18 |
| johanbr | Have you found *any* kernel that's stable? | 19:20 |
| UlfJack | iirc 7.10 was running stable | 19:20 |
| BenC | UlfJack: have you tried switching to console and waiting to see if the hang still occurs? Maybe get some output that way | 19:21 |
| BenC | make sure to boot without the quiet kernel option | 19:21 |
| UlfJack | does quiet make a difference for console output on crash/freeze? | 19:25 |
| === mkrufk1 is now known as mkrufky | ||
| === mkrufk1 is now known as mkrufky | ||
| === mkrufky is now known as Guest25652 | ||
| === mkrufk1 is now known as mkrufky | ||
| UlfJack | of course now it doesn't freeze :( | 20:28 |
| UlfJack | oh well, off to bed | 20:28 |
| Kano | hi rtg , BenC , do you want to see a pic with the error of the vostro 1000? | 22:52 |
| ceekay | BenC: after all that advice yesterday (and my excitement that it was working), i can't seem to get kdump working on another one of my systems running (the one i _need_ it to work on)... seems to kernel panic when loading the capture kernel... i see "unknown_bootoption" in the stack trace and everything else above that seems to sound like initial filesystem sync/load. guess i may have to take back my "kdump works on 7.04" statement... any thoug | 22:54 |
| === johanbr_ is now known as johanbr | ||
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