| === _LibertyZero is now known as LibertyZero | ||
| === tjaalton_ is now known as tjaalton | ||
| fairuz | Morning | 07:49 |
|---|---|---|
| diwic | hi! what's the magic git command to figure if a commit is in the master-next branch of ubuntu-natty (and thus will be in the Natty final kernel), or if I have to ask for it explicitly on the kernel-team ML? | 08:37 |
| smb | diwic, You know you just can look at that branch? git log origin/master-next | 08:38 |
| smb | (from a natty tree that is) | 08:39 |
| diwic | smb, right, then I can pipe that to grep. Didn't think of that, thanks. | 08:39 |
| smb | diwic, there would even be a --grep="bla" for git log | 08:40 |
| RAOF | I believe there's even a “git contains” somewhere... let me se. | 08:42 |
| smb | RAOF, You probably mean git describe --contains <sha1> | 08:42 |
| RAOF | smb: I do indeed. | 08:43 |
| smb | The downside there is that you need a sha1 on natty maybe still be able to be rebased makes it hard to know that | 08:44 |
| smb | Actually master-next is never linear | 08:45 |
| === doko_ is now known as doko | ||
| smoser | hey. i just opened bug 752352 | 11:05 |
| smoser | is this expected behavior ? | 11:05 |
| smoser | it was not listed in the changelog. | 11:06 |
| tim | hi. is it possible to build the linux-tools package with make-kpkg? | 11:41 |
| smoser | smb, you know anything about bug 752352 ? | 11:51 |
| smb | smoser Could be a security feature... I remember kees was asking about some file permissions recently | 12:19 |
| smoser | its not listed in changelog. | 12:19 |
| smoser | and the files are publically available on launchpad or apt repository | 12:19 |
| smoser | so just plain hiding their content isn't all that useful. | 12:20 |
| smoser | ie, if i can't read it in /boot i can download the deb myself | 12:20 |
| smb | Well, I am the wrong person to argue about that. ;) But it makes it harder for automated attacks I guess. | 12:22 |
| smb | See "UBUNTU: [Config] packaging: adjust perms on vmlinuz as well" | 12:23 |
| smb | smoser, Is that a real problem. At least for starting instances one needs to be root anyway... | 12:26 |
| smoser | not a problem for starting anything | 12:26 |
| smoser | but caused my builds to break | 12:26 |
| smoser | they assume that they can read contents of /boot | 12:26 |
| smoser | to copy the kernels out | 12:26 |
| smoser | they can very easily be root to do that, the scripts just be root as little as they have to | 12:27 |
| smb | smoser, Doh! | 12:27 |
| smb | smoser, The reasoning from the patch is that exploits could get the location of kernel addresses from there. I agree that they can have locations prepared per kernel versions... | 12:29 |
| smoser | so that *is* intended behavior ? | 12:30 |
| smb | smoser, It was a change that was requested by the security team, yes | 12:31 |
| smoser | and, by design not listed in the changelog | 12:31 |
| smoser | :-( | 12:31 |
| smb | It should be in the changelog | 12:31 |
| smb | It is at least referenced there in the file | 12:31 |
| smb | linux (2.6.38-8.40) natty; ... | 12:32 |
| smb | ... | 12:32 |
| smb | * [Config] packaging: adjust perms on vmlinuz as well | 12:32 |
| smb | I am ready to admit that this is not that obvious | 12:33 |
| smoser | ah. sorry. i looked in the specific binary's config | 12:33 |
| smoser | oh, and it is there also... i just looked at the top entry | 12:34 |
| smoser | sorry for the spam | 12:34 |
| smb | no worries. There is a lot of text in the changelog at the end of a day | 12:34 |
| smoser | thank you smb | 12:40 |
| arand | It seems that the latest -8 kernel makes update-grub not create the subvol=@ entry (for btrfs), are there any changes which could be related to that? | 12:59 |
| aakshay | i have made small "hello" type driver.. now i would like to start with desigining drivers for ubuntu. please suggest me how should i start? | 13:10 |
| aakshay | sconklin, i have read the book you suggested me and tried the basic examples. now please suggest me to start development with community. :) | 13:12 |
| fairuz | aakshay: which book? LDD? | 13:13 |
| aakshay | fairuz, yes.. | 13:13 |
| aakshay | fairuz, it gave me the basic idea only.. how to go further ?... :) | 13:14 |
| fairuz | aakshay: for me the book is complete :D So what did you managed to do until now | 13:14 |
| fairuz | external module? | 13:15 |
| aakshay | fairuz, i designed the basic initialization module. | 13:15 |
| fairuz | and what did you initialized? | 13:16 |
| arand | Is there any http acces to the git repos of ubuntu by the way? | 13:16 |
| aakshay | fairuz, a simple function... :p | 13:16 |
| aakshay | which displayed some info like " entering the module" | 13:16 |
| aakshay | fairuz, means very basic.. :D | 13:17 |
| fairuz | aakshay: So have you tried to do some communication between user space and kernel space? | 13:17 |
| aakshay | fairuz, nah.. not yet :( | 13:17 |
| fairuz | aakshay: so i think you better try that first | 13:17 |
| aakshay | should i go for that now? | 13:17 |
| aakshay | ok :) | 13:17 |
| fairuz | aakshay: http://www.freesoftwaremagazine.com/articles/drivers_linux?page=0%2C3 | 13:17 |
| fairuz | a good tutorial | 13:17 |
| fairuz | aakshay: http://www.freesoftwaremagazine.com/articles/drivers_linux?page=0%2C0 this is the first page | 13:18 |
| aakshay | okiez.. i will do according to this tutorial | 13:18 |
| aakshay | :) | 13:18 |
| aakshay | okiez.. | 13:18 |
| aakshay | but to run these modules, do i need my own build kernel?.. ;p | 13:18 |
| fairuz | this tutorial is for our of tree modules | 13:19 |
| fairuz | it means you just need the kernel source to build it | 13:19 |
| fairuz | no need to recompile your kernel | 13:19 |
| fairuz | *out | 13:19 |
| fairuz | *out of tree | 13:19 |
| aakshay | fairuz, ok but please tell me something. i am designing all these codes in the kernel directory of my normaly ubuntu i am using | 13:20 |
| aakshay | i have not built any separate kernel | 13:20 |
| fairuz | no problem with that | 13:20 |
| aakshay | ok.. | 13:21 |
| fairuz | you compile a module for a specific kernel | 13:21 |
| aakshay | fairuz, thankyou so much... | 13:21 |
| fairuz | if you are compiling using your currrent kernel, then it will run only on the current kernel | 13:21 |
| aakshay | okiez... but what specific kernel means here? :-o | 13:21 |
| fairuz | the kernel that you are using :D | 13:21 |
| fairuz | type uname -r in your terminal to see which kernel you are using | 13:21 |
| aakshay | fairuz, okiez... :p | 13:22 |
| aakshay | fairuz, thanks a lot.. can you please tell me how long will it take to complete with this tutorial? :p | 13:22 |
| fairuz | aakshay: 30 minutes ? | 13:22 |
| fairuz | or less | 13:23 |
| aakshay | ohhhh!!!! .... :D | 13:23 |
| aakshay | fairuz, so let me try this to complete this in 30 minutes | 13:23 |
| aakshay | :P | 13:23 |
| fairuz | aakshay: ok, but you need more time to understand... dont just copy paste the code | 13:23 |
| aakshay | fairuz, yes.. thanks a lot... :) | 13:24 |
| fairuz | do page 1 to page 7 of the tutorial | 13:24 |
| fairuz | aakshay: np | 13:24 |
| aakshay | fairuz, okiez.. let me start noe itself | 13:24 |
| aakshay | :P | 13:24 |
| aakshay | *now | 13:24 |
| arand | It seems that the latest -8 kernel makes update-grub not create the subvol=@ entry (for btrfs), are there any changes which could be related to that? Also, is there any git http access so one could clone the repos and have a look? (I'm badly firewalled). | 13:49 |
| tgardner | arand, http://kernel.ubuntu.com/git | 13:49 |
| arand | Hmm, I don't see any http links there, and using git clone http://kernel.ubuntu.com/ubuntu/ubuntu-natty.git fails... | 13:54 |
| === maxb_ is now known as maxb | ||
| fairuz | arand: git clone git://kernel.ubuntu.com/ubuntu/ubuntu-natty.git | 14:01 |
| arand | fairuz: I am firewalled and can't use the git:// protocol (unless I go through tor, at 60K/s ...). | 14:02 |
| ogasawara | diwic: bug 732445, looks like you mention the patch has landed upstream in the takashi's sound-2.6 tree, did you want it applied as pre-stable to natty? | 14:13 |
| diwic | ogasawara, let me see | 14:14 |
| ogasawara | diwic: if so, care to just send a quick email to the list | 14:15 |
| diwic | ogasawara, ok, I want it in | 14:15 |
| diwic | ogasawara, I think it's already in | 14:18 |
| diwic | ogasawara, it's just that since Takashi chose a different solution he took away my buglink in the process | 14:19 |
| ogasawara | diwic: ok cool | 14:19 |
| diwic | ogasawara, if git log origin/master-next --grep 584c0c4c359 says it's in, it's in, right? | 14:20 |
| ogasawara | diwic: yep, it's in | 14:20 |
| ogasawara | git describe --contains 24449f05b663f1984ee6ecdba5a0d2ff2a1e0462 | 14:21 |
| ogasawara | Ubuntu-2.6.38-8.40~661 | 14:21 |
| * ogasawara back in 20 | 14:27 | |
| aakshay__ | fairuz, am back. :) | 15:00 |
| aakshay__ | understood the coe | 15:00 |
| aakshay__ | *code | 15:00 |
| fairuz | aakshay__: make it worked then? | 15:00 |
| aakshay__ | but while running , i am getting the error :( | 15:00 |
| aakshay__ | "error: expected declaration specifiers or ‘...’ before ‘sizt_t’ | 15:00 |
| aakshay__ | " | 15:00 |
| aakshay__ | fairuz, :( | 15:00 |
| fairuz | aakshay__: try to debug it :D it should give you the line number | 15:01 |
| aakshay__ | fairuz, its taking ssize_t as 'sizt_t' | 15:01 |
| aakshay__ | yes its line 17 and 18 | 15:01 |
| fairuz | aakshay__: check your code. You do copy paste from the site or write it on your own? | 15:01 |
| aakshay__ | i took the same code but wrote myself.. | 15:02 |
| aakshay__ | fairuz, so that i will learn :p | 15:02 |
| fairuz | whats on line 16 to 18? | 15:03 |
| aakshay__ | please wait.. let me copy the code on pastebin.com | 15:03 |
| aakshay__ | :p | 15:03 |
| aakshay__ | fairuz, its "http://paste.ubuntu.com/590256/" | 15:04 |
| fairuz | aakshay__: As i said before, take a good look at the code and you will find it | 15:05 |
| fairuz | you miss spell something on line 17 and 18 | 15:05 |
| aakshay__ | oops!! .. let me check.. ;p | 15:05 |
| aakshay__ | hehe.. :D.. such a silly mistake.. n took lot of time to get corrected.. :p.. thanks.. | 15:06 |
| aakshay__ | let me compile again.. :) | 15:06 |
| aakshay__ | fairuz, yipii.. done!! | 15:07 |
| aakshay__ | :) | 15:07 |
| fairuz | aakshay__: When it says error at line 17, don't look at line 40.. =) | 15:07 |
| aakshay__ | fairuz, :p... i looked at line 17 only.. :D... i was only lookin at ssize_t , not on required variable.. :D | 15:09 |
| aakshay__ | fairuz, its done.. :).. and i understood it well.. please tell me what i can do further? | 15:15 |
| fairuz | aakshay__: you tried to insmod and rmmod your module? it worked? | 15:15 |
| aakshay__ | yes | 15:15 |
| aakshay__ | i removed the modules | 15:15 |
| aakshay__ | an checked them using the lsmod command | 15:15 |
| aakshay__ | :) | 15:16 |
| aakshay__ | *and | 15:16 |
| fairuz | aakshay__: you tried to communicate with your module from user space? | 15:16 |
| aakshay__ | fairuz, dont know | 15:17 |
| aakshay__ | :p | 15:17 |
| fairuz | aakshay__: so you dont completed the tutorial -.-" | 15:18 |
| aakshay__ | i entered the data. it was from the user space then its copied to kernel space to be accessed from /dev/memory | 15:18 |
| aakshay__ | :p | 15:19 |
| aakshay__ | fairuz, is this was not the concept?.. :) | 15:19 |
| aakshay__ | fairuz, oh yes.. you are right.. the data in the tutorial is sent directly using the "echo" command | 15:21 |
| aakshay__ | there is no use of functions "copy_from_user" and so | 15:22 |
| aakshay__ | :P | 15:22 |
| aakshay__ | fairuz, i have not done the "parallel port" part... | 15:25 |
| aakshay__ | fairuz, how can we make use of the functions "copy_from_user" and others ? | 15:25 |
| tgardner | bryceh_, no joy on bug #686388 | 15:35 |
| aakshay__ | fairuz, thanks for help.. :).. i have to leave. good bye.. . :) | 15:43 |
| tgardner | smb, do you remember how to skip failing mounts at boot up? mountall is hanging 'cause /dev/md0p1 hasn't been enabled when /etc/fstab is read. | 15:45 |
| smb | tgardner, typing s | 15:46 |
| smb | though it might work only with splash | 15:46 |
| tgardner | smb, k, I'll go try that. | 15:46 |
| === tgardner is now known as tgardner-server- | ||
| === tgardner-server- is now known as tgardner | ||
| tgardner | smb, huh, it even tells you what to do, but you have to be able to see the console. | 15:54 |
| smb | tgardner, Sort of makes sense as you are usually in front of it to type the letter | 15:55 |
| smb | tgardner, This is where I start to like boards with integrated ipmi module. The only thing I have not yet got running is to get the java based graphical console over a tunnel when I am not in my home network. :) | 15:57 |
| tgardner | smb, I suppose this emerald has that, but I'm just too lazy to get it working. I'll only have it for a limited time. | 15:58 |
| smb | tgardner, Too true. It was relative simple here as it got its own lan port. The only annoying part is that it only runs with sun-java installed (he graphical console) | 16:01 |
| JFo | <-lunch and a few errands | 16:19 |
| JFo | bbiab | 16:19 |
| bjf | ogasawara, these are probably already on your radar: http://people.canonical.com/~kernel/reports/regressions-proposed-report.html | 16:46 |
| ogasawara | bjf: thanks, I'll browse through em to just make sure there's no kittens dieing | 16:48 |
| tgardner | ogasawara, no pink kittens this time around? how about green? | 16:48 |
| tgardner | or is that dyeing ? | 16:49 |
| tgardner | I can never remember | 16:49 |
| ogasawara | heh, I can never remember either | 16:49 |
| tgardner | ogasawara, ooh! I fixed bug #747364. do I get brownie points ? I used the "Won't Fix" club. | 16:59 |
| ogasawara | tgardner: heh, I'll buy ya a beer in budapest | 17:00 |
| tgardner | ogasawara, big spender. it'll only cost you $1.80 | 17:00 |
| ogasawara | tgardner: diapers are expensive these days, it's all I can afford :) | 17:01 |
| tgardner | ogasawara, go cloth | 17:01 |
| === herton is now known as herton_lunch | ||
| * smb tries not to think too much about the term brownie points now | 17:02 | |
| * tgardner thinks smb is a sick puppie | 17:02 | |
| bjf | ogasawara, i don't know if "fixing a bug" by marking it "won't fix" constitutes a beer, but maybe a 1.80 beer | 17:02 |
| === cmagina is now known as cmagina-lunch | ||
| === sconklin is now known as sconklin-lunch | ||
| tgardner | ogasawara, how are your oneiric armel build issues coming? | 17:46 |
| ogasawara | tgardner: should be fixed, final build is just finishing up | 17:46 |
| ogasawara | tgardner: I pushed the bits to the repo | 17:46 |
| tgardner | ogasawara, cool | 17:46 |
| ogasawara | tgardner: am about to rebase to 2.6.39-rc2 | 17:46 |
| tgardner | ogasawara, which will introduce a whole new raft of issues :) | 17:47 |
| tgardner | ogasawara, don't forget to pick up master-next commits | 17:48 |
| ogasawara | tgardner: ack | 17:48 |
| === herton_lunch is now known as herton | ||
| === cmagina-lunch is now known as cmagina | ||
| === sforshee is now known as sforshee-lunch | ||
| kristian-aalborg | jjohansen: ping | 18:22 |
| jjohansen | kristian-aalborg: pong | 18:25 |
| kristian-aalborg | I've been thinking.... the install I tested my custum kernels on is kind of a mess since I have experimented a lot | 18:26 |
| jjohansen | yeah that happens | 18:27 |
| kristian-aalborg | fun times indeed... but it may be a factor in my kernels messing up | 18:28 |
| kristian-aalborg | or anyway, that thought crossed my mind | 18:29 |
| jjohansen | yes that is possible | 18:29 |
| JFo | oh hey jjohansen, you pinged me the other night but I just missed you when I responded. Do you still need me? | 18:29 |
| jjohansen | generally we try to build inside a chroot to keep the environment consistent | 18:30 |
| jjohansen | JFo: hrmm, I can't remember why I pinged you, so you are in the clear :) | 18:30 |
| JFo | oh good :-) | 18:30 |
| jjohansen | JFo: hrmm maybe it was for a bug nomination | 18:31 |
| JFo | could be | 18:31 |
| JFo | if you remember it I am happy to fix it | 18:31 |
| JFo | or rather approve it | 18:31 |
| JFo | jjohansen, was it to add a linux(Ubuntu) task to this one? https://bugs.launchpad.net/linux/+bug/744419 | 18:32 |
| jjohansen | JFo: actually it was Bug #748656 | 18:33 |
| * JFo looks | 18:34 | |
| JFo | jjohansen, done | 18:34 |
| === kentb is now known as kentb[dell] | ||
| jjohansen | JFo: so Bug #744419 is not kernel related, we traced it down to eucalyptus | 18:35 |
| jjohansen | or at least that is the current working theory | 18:35 |
| JFo | ah hah | 18:36 |
| jjohansen | kvm runs fine, and this is failing when we put in the maverick kernel | 18:36 |
| JFo | well, I added a kernel task just in case | 18:36 |
| JFo | if it isn't needed it is an easy thing to close | 18:36 |
| JFo | just don't want it to disappear | 18:36 |
| jjohansen | so for the moment lets mark the linux task invalid, and we can change it back if needed | 18:36 |
| JFo | ok | 18:36 |
| jjohansen | JFo: arg no wait | 18:37 |
| * jjohansen was looking at the wrong bug | 18:37 | |
| JFo | heh | 18:37 |
| jjohansen | JFo: that one is linux, its the rtl8192ce driver, traced that one down on the weekend | 18:37 |
| JFo | ah, I just read your comment | 18:38 |
| jjohansen | it bugs 746751, that isn't the kernel | 18:38 |
| jjohansen | we were chasing that on friday and the start of this week | 18:38 |
| * jjohansen is getting confused by having too many bug tabs open in his browser | 18:39 | |
| JFo | I know the feeling :-( | 18:39 |
| jjohansen | ogasawara: just a heads up on this one too, bugs 746751 appears not to be kernel related at this time serge is chasing the eucalyptus path | 18:40 |
| ogasawara | jjohansen: cool, thanks | 18:43 |
| jjohansen | ogasawara: did smb update you on bug 634487 | 18:45 |
| ogasawara | jjohansen: he mentioned it the other day and I've been following his comments to the bug | 18:46 |
| jjohansen | ogasawara: okay, great | 18:46 |
| === sconklin-lunch is now known as sconklin | ||
| bryceh_ | tgardner, yeah, although upstream had alluded to known issues with macbooks. I wish Intel were a large enough company to employ more than one engineer in their QA department. | 18:53 |
| tgardner | bryceh_, thats the only feedback so far. is the macbook a regression? | 18:57 |
| bryceh_ | tgardner, upstreams exact words were "Those two patches have been reported by one user to have fixed the issue for | 18:59 |
| bryceh_ | him, but I need a few more testers since they seem to foul up a MacBook (but | 18:59 |
| bryceh_ | then there are more than one issue at play with MacBooks...)" | 18:59 |
| bryceh_ | so, I would interpret it to mean that yes it is a regression on macbooks | 19:00 |
| tgardner | bryceh_, gah, what a mess. | 19:00 |
| bryceh_ | maybe if Intel can make some profits they can buy that guy a macbook to test | 19:02 |
| bryceh_ | tgardner, anyway I'm thinking maybe we wait until there's something actually posted to drm-next. These one off patches seem sketchy too often. | 19:03 |
| tgardner | bryceh_, ack | 19:03 |
| kees | smoser: yeah, while the /boot perms obviously don't stop someone from just going and getting the deb themself, it does stop some "simple" attacks that will be dumbfounded by the lack of kernel symbols. | 19:04 |
| kees | smoser: it's crude and effective for a certain set of attacks, and does nothing to stop others. I felt it was worth it; sorry about the breakage it caused you! | 19:05 |
| === sforshee-lunch is now known as sforshee | ||
| smoser | i really don't think it woudl stop an attack | 19:08 |
| * tgardner --> lunch | 19:09 | |
| smoser | i really can't imagine someone saying "oh bother, i can't read the kernel symbols for this kernel, i guess i wont' insert a root exploit today" | 19:09 |
| smoser | "i'd have to do a 'wget' in order to do it, and thats really just too much work" | 19:09 |
| kristian-aalborg | I'm going to install a backup kernel, I need linux-headers-xxx, linux-image-xxx... and anything more? | 19:18 |
| * jjohansen -> lunch | 20:05 | |
| * ogasawara back on later | 21:56 | |
| === sconklin is now known as sconklin-gone | ||
| kees | JFo: got a kernel regression for you... 731878 | 23:27 |
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