Tm_T | Hi, how do I could debug a kernel panic, possibly caused by a scheduler | 07:37 |
---|---|---|
Tm_T | I have ~daily kernel panics, and I see line of "BUG: Error while scheduling atomic: <binary that was active at that time>" sort | 07:38 |
Tm_T | this is 2.6.38-11-generic running on Intel, I suppose this CPU: http://ark.intel.com/products/41498/Intel-Celeron-Processor-900-%281M-Cache-2_20-GHz-800-MHz-FSB%29 | 07:43 |
* apw yawns, bouncy internet this morning, not good | 07:53 | |
Tm_T | heh, struggled 2 first hours in the office for constantly disconnecting wlan | 07:54 |
Tm_T | s/for/with/ | 07:54 |
jk- | hey apw | 07:54 |
apw | morning | 07:54 |
jk- | been keeping the rioters at bay? | 07:54 |
apw | jk-, two nights ago they were burning dowm the shops 5 mins from my house, but its sounding quieter now | 07:55 |
jk- | jeeeez :/ | 07:55 |
apw | jk-, first and only time i've packed a bag in case i had to run | 07:56 |
apw | and i lived though the constant bombing by the IRA, somehow this is more dangerous, more random | 07:56 |
apw | but i heard nothing last night so perhaps we are past the worst | 07:59 |
jk- | i hope so... | 08:01 |
apw | we have had a pile of police on the streets, thats going to cost a few bob sadly | 08:13 |
apw | "peaceful night across the country" is todays message ... phew | 08:13 |
apw | "those who think they have got away with looting will be supprised today when the doors start to go in" like the sound of that | 08:16 |
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hggdh | sconklin: bug 824520 during QA for 2.6.38-11.48, generic-pae. Did not reoccur, so I am not marking as failure. Nevertheless you folks should have a look | 13:11 |
ubot2 | Launchpad bug 824520 in linux "WARNING: at /build/buildd/linux-2.6.38/arch/x86/kernel/apic/ipi.c :109 default_send_IPI_mask_logical+0xb1/0xf0()" [Undecided,New] https://launchpad.net/bugs/824520 | 13:11 |
=== smb` is now known as smb | ||
sconklin | hggdh: all testing results like this need to be posted to the tracking bug, so they aren't lost on IRC. I've copied this one to the bug. I'll have a look and see whether we should pass it or not | 13:52 |
hggdh | sconklin: I was giving yuou advance warning. When I finish a test sequence, I write in anything interesting, including bugs. No need to tell me this should go into the tracking bug | 13:54 |
sconklin | hggdh: ok, thanks, sorry to jump on that | 13:54 |
sconklin | maybe I can have an answer before you are done | 13:55 |
hggdh | this is my hope. I cannot tie it to the kernel so far | 13:55 |
siji | Hi All, | 13:59 |
siji | First want to report some bugs in ubuntu-natty kernel (for ARM) | 13:59 |
siji | the default driver module for Touchscreen ads786 is not the right one | 14:00 |
siji | And now am trying to build this module , but not succeeded | 14:01 |
siji | Steps followed : Downloaded the kernel source from rep. by apt-get install linux-source | 14:02 |
sconklin | hggdh: Any idea which test was running when this occurred? Maybe it's in the logs and I don't know where to look | 14:02 |
siji | make modules SUBDIRS=drivers/input/touchscreen/ | 14:03 |
khanx | hey everybody | 14:03 |
khanx | im new to this... which languages do i need to know to customize my kernel ? | 14:04 |
siji | English & C :) | 14:04 |
khanx | so far so good. :P | 14:05 |
siji | :) | 14:05 |
khanx | im not so familiar with ubuntu though. like i said im new to linux, but im not bad with C and java | 14:06 |
siji | Then i suggest you to familiar with linux/ubuntu first then get into Linux Kernel | 14:07 |
khanx | and whats your advice on how to become familiar with ubuntu fast? | 14:08 |
khanx | i feel like its gonna take ages | 14:08 |
khanx | any e-book or online texts recommended ? | 14:09 |
siji | not at all | 14:09 |
siji | Download ubuntu ISO isntall it and play with it | 14:09 |
hggdh | sconklin: at this point in time it was the LPT lite | 14:09 |
hggdh | it really does not help that a lot of programs get to print warning/error messages without identification :-( | 14:10 |
siji | khanx, get familiar with basic unix/linux commands | 14:11 |
siji | this will make your " Playing with Linux" more easier | 14:12 |
siji | any help pls | 14:14 |
siji | Or any one can provide me ads786.ko (touchscreen module) for 2.6.38.8-omap | 14:15 |
apw | siji, if you have ARM specific questions you may get quicker answers on #ubuntu-arm, the peeps who mostly have the h/w hang out there | 14:16 |
siji | apw, :) | 14:16 |
ogra_ | apw, lol | 14:16 |
ogra_ | apw, i have no clue how to only build modules in subdirs of the kernel tree | 14:17 |
siji | he he | 14:17 |
ogra_ | never had to | 14:17 |
ohsix | make M= isn't it? | 14:17 |
ohsix | or make module.ko | 14:17 |
siji | ohsix, means | 14:17 |
ohsix | there's "make help" too | 14:17 |
ogra_ | so i'm surely a bad candidate to support that :) | 14:17 |
siji | ok | 14:18 |
siji | (ohsix, looking into make help ) | 14:19 |
apw | building only in a subdir, hmmm, that is in the docs somewhere something like fakeroot debian/rules prepare-<flavour>; make O=debian/build/build-<flavour> <directory name> | 14:19 |
apw | or <directory>/<module>.ko at the end | 14:19 |
apw | not that i ever do it, i normally just build the lot | 14:19 |
siji | apw, ya it worked for me | 14:19 |
siji | but it hasnt built whole kernel modules | 14:20 |
siji | I have defined he directory name | 14:20 |
siji | ./touchscreen which is having more than 10 driver modules, but it built only three | 14:21 |
siji | And unfortunately my module was not there in those three ;( | 14:21 |
apw | well it will only build the ones which are turned on in your config too | 14:22 |
siji | Am not a expert in kernel , so i feel something wrong in the .conf or some where else | 14:22 |
siji | apw, understood | 14:22 |
siji | I hve tried many times by configuring it | 14:22 |
apw | if you want foo.ko built there will be something like obj-$(CONFIG_FOO): foo.ko in the Makefile, which tells you the CONFIG to look for in your .config | 14:22 |
siji | apw, ok | 14:23 |
siji | let me have a look into it | 14:23 |
ogra_ | apw, well, the initial issue that drove siji to try the recompile was that the module shipped in the package breaqks with undefined symbols on loading | 14:23 |
ogra_ | apw, which i find extremely weird for a module built in the same package | 14:24 |
siji | ogra_, apw , then by building the kernel from the same source(ubuntu repository) again will make any sense for me ? | 14:25 |
apw | ogra_, odd indeed but not impossible i think | 14:25 |
apw | if the dependancies in the Kconfig are broken | 14:25 |
siji | apw, broken locally in my setup only ? | 14:27 |
bjf | the kteam-bugs is 831M | 14:27 |
bjf | -EWRONGCHAN | 14:27 |
apw | siji, likely generally if they don't work with the ones in the archive | 14:28 |
apw | is there a bug or error messge i can look at | 14:28 |
siji | apw, ok | 14:28 |
siji | the bug is with ads7846 driver module (Touchscreen - used TSC2046 in the Expansion board,and it connect with DM3730 by SPI port) | 14:29 |
siji | ogra_, sorry hasnt got time to report the bug report . apologise .. | 14:30 |
ogra_ | dont apologize, file it instead :P | 14:31 |
siji | :) | 14:32 |
tgardner | ogasawara, am working on jjohansen's AA 13 patch set. | 14:34 |
ogasawara | ogasawara: ack, I'm lookin at ike's | 14:35 |
tgardner | cool | 14:35 |
=== ericm|ubuntu is now known as ericm-Zzz | ||
=== ericm_ is now known as ericm-Zzzz | ||
smb | morning | 14:43 |
siji | ogra_, done :) | 14:55 |
siji | good learning for me :) | 14:56 |
ogra_ | siji, tell apw the bug number | 14:57 |
siji | o | 14:57 |
siji | ok | 14:57 |
siji | apw, Bug #824589 | 14:57 |
ubot2 | Launchpad bug 824589 in ubuntu "inproper Touch Screen Dirver module(for arm beagleboard) for TSC2046 in the Expansion board,and it connect with DM3730 by SPI port ." [Undecided,New] https://launchpad.net/bugs/824589 | 14:57 |
siji | yes the same | 14:58 |
apw | ogra_, do you have a pointer to that possible arm smb issue | 15:17 |
ogra_ | apw, omap3 has no SMP :) | 15:18 |
smb | ogra_, omap4 | 15:18 |
ogra_ | err, you said smb :P | 15:19 |
smb | Though I would probably prefer not being called an issue... :) | 15:19 |
ogra_ | sorry, running a meeting atm | 15:19 |
smb | ogra_, He was trying to say smp | 15:19 |
apw | jjohansen, about ? i've replied to your TOCTOU patches, i think there is an issue with the Maverick one | 15:32 |
smb | apw, He is here though I need to ask | 15:32 |
jjohansen | apw: oh? that is possible | 15:32 |
apw | jjohansen, and i am wondering if you are doing backports for lucid and hardy or not | 15:33 |
jjohansen | apw: ah yeah, sorry /me couldn't find those last night and hasn't gotten to it this morning yet | 15:34 |
apw | jjohansen, ok will wait on those rather than doing them | 15:39 |
jjohansen | apw: okay, I'll take a look at the Maverick one again too | 15:40 |
apw | jjohansen, my review comments are on the mailing list | 15:40 |
jjohansen | apw: thanks | 15:41 |
ogra_ | smb, apw, meeting done, so what was the issue | 15:46 |
smb | ogra_, Question was whether you got a pointer to the bug concerning poor performance in smp mode on the panda | 15:47 |
ogra_ | the bug number you mean ? | 15:47 |
smb | yep | 15:47 |
ogra_ | i have no further pointers than what are noted in the bug | 15:47 |
ogra_ | one sec | 15:48 |
ogra_ | bug 709245 | 15:48 |
ubot2 | Launchpad bug 709245 in linux-ti-omap4 "ARM SMP scheduler performance bug" [High,Confirmed] https://launchpad.net/bugs/709245 | 15:48 |
smb | ogra_, K, thanks | 15:48 |
smb | Currently upgrading the board here | 15:49 |
tgardner | pgraner, looks like the ISO builder ran last night? | 16:00 |
tgardner | bummer, still getting apt-get trap divide error | 16:04 |
cjwatson | does anyone here who is (a) in ubuntu-core-dev and (b) not in techboard or ubuntu-release have a bug task they'd like to nominate for a stable release? | 16:33 |
cjwatson | right now you can just do it; I want to make a change to the stable release ownership in LP and would like to make sure that doing so does not break it this | 16:33 |
cjwatson | but I can't test it myself since I'm overprivileged | 16:34 |
apw | tgardner, ^^ is the only one i think who fits that criteria | 16:34 |
tgardner | cjwatson, hmm, that might be me. | 16:34 |
cjwatson | if you have a suitable task to nominate, then yeah, you have the level of privileges I'm looking for | 16:35 |
apw | tgardner, you can safely nominate any of our cves to like karmic and the tools will slam them invalid later | 16:35 |
tgardner | cjwatson, are you wanting to mess with our ability to make nominations? its already difficult in that very few of us _can_ do it. | 16:36 |
apw | s/cves/cve bugs/ | 16:36 |
cjwatson | tgardner: I want to make sure I'm *not* messing with your ability to do so | 16:36 |
tgardner | cjwatson, ah | 16:36 |
cjwatson | actually, here | 16:36 |
cjwatson | tgardner: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/752694 - can you see an "approve/decline" thing there? (don't click it yet) | 16:36 |
ubot2 | Ubuntu bug 752694 in grub2 "Grub2 installs on the wrong device if in a RAID config" [High,Confirmed] | 16:36 |
tgardner | cjwatson, yes | 16:37 |
apw | tgardner, http://people.canonical.com/~kernel/reports/kernel-cves.html any of those bugs can be safely nominated to anything, and we'll cope | 16:37 |
cjwatson | tgardner: OK, reload - can you still see it, and if you hit approve, does it work? | 16:37 |
cjwatson | (I've just changed natty's owner from ubuntu-core-dev to ubuntu-release) | 16:38 |
tgardner | cjwatson, it appears to have worked | 16:38 |
cjwatson | excellent, thanks! | 16:38 |
cjwatson | I'll go and change the other stable releases now then. Please let me know if you notice regressions in your ability to nominate things | 16:39 |
tgardner | cjwatson, will do. | 16:39 |
tgardner | apw, since FF approaches, perhaps its time to get an empty oneiric LBM package in the archive before it gets difficult. | 16:40 |
apw | i think ff offically is in 15 mins, but lbm has always been treated at part of the kernel | 16:42 |
apw | but yes i think its time | 16:43 |
cjwatson | (BTW, the fix for bug 451390 ought to have improved the nomination situation for you guys) | 16:43 |
ubot2 | Launchpad bug 451390 in launchpad "limited upload rights no longer give series nomination accept/decline rights" [Critical,Fix released] https://launchpad.net/bugs/451390 | 16:43 |
apw | cjwatson, ohhh nice ... musdt find a way to test that | 16:44 |
apw | tgardner, i'll put the LBM on my todo for tommorrow | 16:51 |
tgardner | apw, ack | 16:51 |
apw | tgardner, you will be pleased to know i have spent several hours un-fooking my email so i have some hope of keeping up on it | 16:52 |
tgardner | apw, be sure to check the repo in your morning in case I manage to get to it yet today. | 16:52 |
apw | tgardner, ack | 16:52 |
tgardner | apw, I'm pretty ruthless about keeping my inbox down to just a couple of emails by EOD | 16:53 |
apw | yep and working on a similar scheme but it needs for my filtering to be sane and work, which has been the big battle | 16:54 |
apw | i think i have just about won | 16:54 |
* tgardner likes procmail | 16:54 | |
tgardner | ogasawara, does '(drop after 3.0)' make sense for a clean cherry-pick ? | 16:59 |
apw | they should drop themselves on rebase anyhow | 16:59 |
ogasawara | tgardner: sorta unneeded I guess as apw says they'll drop anyways | 17:00 |
tgardner | apw, ogasawara: you mean for the P series kernel, or for the once more that might happen for oneiric ? | 17:00 |
apw | (for P i am assuming) | 17:01 |
ogasawara | tgardner: they should drop for P, possibly for O if they hit stable and I rebase | 17:01 |
tgardner | ok, I'm just being OCD | 17:01 |
ogasawara | tgardner: I assume you're referring to ike's patches | 17:01 |
tgardner | ogasawara, yep | 17:02 |
ogasawara | tgardner: if it makes you feel better, I'm indifferent so if you want to fix up and push over the top, feel free :) | 17:03 |
tgardner | ogasawara, I'll get over it. some good drugs will help. | 17:03 |
* smb wonders whether there some involved already... | 17:05 | |
apw | tgardner, you got any rtl8192cu's ? if so do they work ? | 17:19 |
tgardner | apw, I can't hear you.... | 17:19 |
apw | damn | 17:20 |
tgardner | apw, everything I jave is Intel or Atheros | 17:20 |
tgardner | have* | 17:20 |
smb | apw, think I got one | 17:21 |
smb | apw, Is that one of your new micro dongles | 17:22 |
apw | smb, i got one of those micro 80211.n things ... yeah | 17:22 |
apw | seems to be recognised but not auth ... bah | 17:22 |
smb | think I got a similar one now | 17:22 |
smb | it worked | 17:22 |
smb | but in natty you needed cw-2.6.39 | 17:22 |
apw | doesn't seem to work in oeniric, damn | 17:25 |
* tgardner unleashes his inner OCD on ogasawara | 17:29 | |
ogasawara | heh, what now? | 17:30 |
tgardner | k-team email | 17:30 |
apw | smb, did your fixes for LBM versioning get out ? | 17:32 |
smb | apw, I did versioning? | 17:42 |
smb | The last thing I remember doing was that failure to package the right modules | 17:44 |
smb | Though that was limited to lucid I think | 17:44 |
hggdh | sconklin, bjf, herton: bug 818175 done, marked qa-testing-passed | 17:44 |
ubot2 | Launchpad bug 818175 in linux "linux: 2.6.38-11.48 -proposed tracker" [Medium,In progress] https://launchpad.net/bugs/818175 | 17:44 |
sconklin | hggdh: thank you! | 17:44 |
apw | smb, limited to lucid ok | 17:45 |
khanx | hi, i downloaded the latest kernel. i have no clue where to start examining it lol | 17:46 |
khanx | isnt there something like a schema | 17:47 |
=== sarahsharp1 is now known as sarahsharp | ||
jjohansen | khanx: no | 17:49 |
jjohansen | khanx: the best place to start is Documentation/ and kernelnewbies.org | 17:50 |
khanx | thanks for the tip =) | 17:55 |
apw | the natty update on this t30 has fecked it | 18:00 |
* tgardner --> lunch | 18:00 | |
* smb wonders where to test build ti-omap4 kernels... | 18:14 | |
tgardner | smb, gomeisa or tangerine ? | 18:33 |
smb | tgardner, Any would be ok, but there does not seem to be a oneiric-armel schroot on either of them | 18:34 |
tgardner | smb, I've been using the cross compiler since the armel schroot doesn't work | 18:34 |
smb | tgardner, Ah, ok. Will do the same then | 18:35 |
tgardner | smb, echo "debuild -B -edo_tools=false -us -uc"|schroot -c oneiric-amd64 | 18:35 |
smb | thanks | 18:35 |
tgardner | smb, opps, forgot arch: echo "debuild -B -edo_tools=false -us -uc -aarmel"|schroot -c oneiric-amd64 | 18:35 |
smb | Heh, ok was thinking that would need to be somewhere | 18:36 |
tgardner | smb, besides, the cross compiler method is way faster | 18:36 |
* ogasawara shakes fist at tgardner's contagious OCD and updates ike's patches | 18:37 | |
smb | tgardner, Completely agreed. Was not sure the cross compiles is installed or not | 18:37 |
* tgardner enjoys his infectious OCD tendencies | 18:38 | |
ohsix | can you direct them at seeing why i get 3 backlight adjustments for each hard key press :> | 18:38 |
mdeslaur | herton: ok, I can reliably reproduce the issue now | 19:20 |
mdeslaur | herton: bug updated | 19:20 |
herton | mdeslaur: cool, will give you another test kernel shortly | 19:22 |
mdeslaur | herton: great, thanks | 19:22 |
herton | mdeslaur: done, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/814325/comments/23 | 20:01 |
ubot2 | Ubuntu bug 814325 in linux "fuzzy and corrupted display with update in natty-proposed" [High,Triaged] | 20:01 |
mdeslaur | herton: trying now, thanks | 20:03 |
mdeslaur | herton: sorry, r4 has the regression :( | 20:09 |
herton | mdeslaur: ok, seems only way is reverting that patch for now | 20:10 |
hggdh | sconklin: just making sure, I am -- right now -- up-to-date on SRUs, correct? | 20:19 |
sconklin | hggdh: hold on while I double check. I think so | 20:20 |
sconklin | hggdh: yes, you are caught up :-) | 20:21 |
hggdh | \o/ | 20:28 |
hggdh | thank you, sir | 20:28 |
* herton -> eod | 20:39 | |
* ogasawara bails for a bit | 20:55 | |
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=== yofel_ is now known as yofel |
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