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| dilinger | fabbione: when do you think you'll get around to doing a new kernel for this box? | 04:59 |
|---|---|---|
| dilinger | i've got a machine hooked up to its serial console right now that i want to bring back downstairs | 04:59 |
| dilinger | which i'll do as soon as there's little chance of the sunfire needing any sort of kernel upgrade | 04:59 |
| fabbione | dilinger: i already copies the sources there.. i will start the build in a few minutes | 05:50 |
| fabbione | oh hold on | 05:51 |
| fabbione | i just got a mail from davem | 05:51 |
| dilinger | yea? | 05:51 |
| fabbione | It doesn't fix a hang, it fixes userspace FPU register corruption. | 05:51 |
| fabbione | The hang on SMP Ultra-III chips will not be fixed by this patch. | 05:51 |
| fabbione | That problem would require at least 2 or 3 weeks with physical | 05:51 |
| fabbione | access to an SMP Ultra-III system. | 05:51 |
| fabbione | I'm just assuming your Ultra-III box was SMP since I do know about | 05:51 |
| fabbione | a hang on those systems. It's a bug related to how the chip processes | 05:51 |
| fabbione | cross-cpu calls and L2 cache transactions. It wedges and the only | 05:51 |
| fabbione | way to unwedge a wedged cpu is to try to gain ownership of some L2 | 05:51 |
| fabbione | cache lines that cpu has. And for this you have to guess, ie. try to | 05:52 |
| fabbione | figure out what data structures and pieces of the address space the | 05:52 |
| fabbione | hung cpu might have in it's L2 caches. | 05:52 |
| fabbione | I hope you can see why it's so difficult to code up a fix without | 05:52 |
| fabbione | physical access to a machine on which this can be triggered :-) | 05:52 |
| fabbione | If your Ultra-III is not SMP I'd be curious to learn about it if you | 05:52 |
| fabbione | can still trigger the hang. | 05:52 |
| dilinger | he's in california, right? | 05:52 |
| fabbione | SF afaik | 05:52 |
| dilinger | ask him if he plans to come to ny anytime soon :) | 05:53 |
| fabbione | dilinger: is that a sunfire280r? | 05:54 |
| dilinger | yep | 05:54 |
| dilinger | (or montreal) | 05:54 |
| dilinger | (for ubz) | 05:54 |
| fabbione | ok hold on.. i am talking with him on another chat | 05:54 |
| fabbione | console isn't enough.. he needs access for real.. | 05:55 |
| dilinger | right | 05:59 |
| dilinger | that's why i'm asking if he's going to be anywhere near me anytime soon | 05:59 |
| dilinger | i'll give him the machine | 05:59 |
| dilinger | is he on irc? | 06:01 |
| fabbione | yeah.. but not on feenode ;) | 06:02 |
| fabbione | (pasting here and there) | 06:02 |
| fabbione | davem he can't fedex it to SF? :) | 06:02 |
| fabbione | davem I'd pay for shipping, I could do that | 06:02 |
| dilinger | ugh | 06:04 |
| dilinger | i suppose i could, but i have no idea where the nearest place i could fedex from is | 06:04 |
| dilinger | he realizes it's 80lbs, right? :) | 06:05 |
| fabbione | i think he knows.. i did send an email to both of you | 06:06 |
| dilinger | ok | 06:06 |
| fabbione | so you can discuss it directly | 06:07 |
| fabbione | (on his request) | 06:07 |
| fabbione | pointless for me to bounce info around | 06:07 |
| === dilinger laughs | ||
| dilinger | appropriate .sig | 06:07 |
| dilinger | fabbione: i would still like to see it used as a buildd or something, i dunno what davem plans to do w/ it in the long run. but, the original owner of the machine would probably be pleased w/ davem owning it | 06:10 |
| fabbione | dilinger: i think you can still agree with davem for him to have it while he fixes the bug | 06:10 |
| fabbione | and later send it to a hosting facility | 06:10 |
| fabbione | perhaps he knows even where to host it | 06:10 |
| dilinger | lame, fedex.com requires an account to get rates | 06:13 |
| fabbione | dilinger: about ubuntu buildd.. we might get official buildd's at the datacenter | 06:23 |
| fabbione | if we don't, we will find hosting for it | 06:23 |
| dilinger | fabbione: *shrug*. well, ubuntu buildd or whatever; mainly i want to see it used for something that actually benefits the community | 06:25 |
| fabbione | yup.. i understand that :) | 06:26 |
| dilinger | if davem actively maintains it, i suppose that's a huge benefit. but if it's just sitting in a room unused alongside 30 other sparcs that he owns.. :) | 06:26 |
| fabbione | nah he is already dedicating hw to ubuntu :) see his last email | 06:27 |
| === dilinger gives up attempting to use fedex's site | ||
| fabbione | ehehe | 06:57 |
| fabbione | dilinger: did the machine change ip again+ | 08:09 |
| fabbione | ? | 08:09 |
| dilinger | ugh | 08:13 |
| dilinger | i dunno what's up w/ this | 08:14 |
| dilinger | maybe give it a little time and it'll come back | 08:14 |
| fabbione | ok | 08:15 |
| dilinger | fabbione: if it's not back by morning, i'll switch its ip again | 08:24 |
| dilinger | 'night | 08:25 |
| fabbione | dilinger: can you please do it on the fly? | 08:25 |
| fabbione | because i did restart the buildd on it :) | 08:25 |
| dilinger | huh | 08:25 |
| dilinger | interesting | 08:25 |
| dilinger | try it now | 08:25 |
| fabbione | yup | 08:26 |
| fabbione | what happened? | 08:26 |
| dilinger | i'm.. not sure | 08:26 |
| fabbione | was it in OBP mode? | 08:26 |
| dilinger | no, it's up and running | 08:26 |
| dilinger | i couldn't reach it from the outside world | 08:26 |
| dilinger | but i could reach it from inside the network | 08:26 |
| fabbione | ah | 08:27 |
| fabbione | so what did you do? | 08:27 |
| dilinger | once i netcat'd out to a machine on the internet, it was reachable again | 08:27 |
| fabbione | ahhh | 08:27 |
| fabbione | arpcache problems | 08:27 |
| dilinger | so it sounds like some arp or routing issue | 08:27 |
| fabbione | no big deal | 08:27 |
| dilinger | yea | 08:27 |
| fabbione | i can add a ping every N minutes | 08:27 |
| fabbione | if you don't mind | 08:27 |
| dilinger | yea, i just started something like that | 08:27 |
| fabbione | perfect :) | 08:27 |
| dilinger | dilinger@sunfire:~$ while (sleep 180); do echo foo | nc mouth.voxel.net 22; done | 08:27 |
| fabbione | thanks a lot | 08:28 |
| dilinger | and now, i shall sleep | 08:28 |
| dilinger | np | 08:28 |
| fabbione | good night | 08:28 |
| dilinger | 'night | 08:28 |
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| chmj | do we provide 2.6.13 ? | 12:04 |
| fabbione | no | 12:06 |
| chmj | thought so | 12:07 |
| johnm | fabbione: do you guys provide a hardened version of the ubuntu sources? (grsec/pax, etc) | 12:27 |
| fabbione | nope | 12:28 |
| johnm | fabbione: any plans to? | 12:28 |
| fabbione | nope :) | 12:28 |
| johnm | how come? | 12:28 |
| fabbione | but you can ask for discussion | 12:28 |
| fabbione | because the patches are a pain to maintain in time | 12:28 |
| johnm | Wiki = best place? | 12:28 |
| fabbione | johnm: kernel-team@lists.ubuntu.com | 12:28 |
| fabbione | for a fast discussion | 12:29 |
| johnm | :) they can be... but in honesty they're no worse than some of the stuff which is teasing mainsteam inclusion. | 12:29 |
| fabbione | wiki to formalize | 12:29 |
| johnm | that an open list? | 12:29 |
| johnm | tbh, it ideally means toolchain changes anyways, like the inclusion of pie and ssp./ | 12:29 |
| fabbione | oh we did discuss that to death | 12:31 |
| fabbione | no you need to subscribe | 12:31 |
| johnm | pie/ssp? or the hardened stuff? | 12:31 |
| fabbione | we will not apply these patches in main | 12:31 |
| fabbione | yes | 12:31 |
| johnm | what came out of it? | 12:31 |
| fabbione | toolchain related.. | 12:31 |
| fabbione | that hardened can be a derivate Ubuntu product | 12:32 |
| fabbione | but it won't hit mainline if it doesn't hit upstream first | 12:32 |
| johnm | ah I see. | 12:32 |
| fabbione | there are tons of reasons for that | 12:32 |
| fabbione | search the mailing list archive will give you a good bunch of stuff | 12:33 |
| fabbione | iirc it was discussed on ubuntu-devel mailing list | 12:33 |
| johnm | Yeah, we had similar discussions but pie/ssp is part of the base toolchain. (although we do give options to ignore using it). | 12:33 |
| johnm | cool, I'll take a look | 12:33 |
| fabbione | food time | 12:33 |
| fabbione | later | 12:33 |
| johnm | tbh, it isn't a requirement for the hardened-kernel stuff anyways. it's merely an extra attack vector which is being nailed down | 12:33 |
| makx | fabbione: klibc-sparc64-signals.diff causes build failures | 01:10 |
| makx | they are due too duplicate defines. | 01:11 |
| makx | gcc-3.3 doesn't cure that for me. | 01:11 |
| fabbione | makx: strange.. it was required here when building in 64 bit | 01:11 |
| makx | cpu : TI UltraSparc IIi (Sabre) | 01:12 |
| fabbione | makx: i think it might be due to different l-k.h | 01:12 |
| fabbione | makx: cpu has nothing to do with it.. it's the build env that makes the difference | 01:12 |
| makx | fabbione: thought so did you apply an kernel patch too. | 01:13 |
| fabbione | makx: i don't do l-k-h, that's a question for jbailey | 01:13 |
| makx | #if defined(__KERNEL__) | 01:13 |
| makx | #define __old_sigaction old_sigaction | 01:14 |
| makx | #define __old_sigaction32 old_sigaction32 | 01:14 |
| makx | #else | 01:14 |
| makx | #define __old_sigaction sigaction | 01:14 |
| makx | #define __old_sigaction32 sigaction32 | 01:14 |
| makx | #endif | 01:14 |
| fabbione | makx: i don't have the code right under my eyes | 01:14 |
| makx | fabbione: sure :) | 01:14 |
| fabbione | building in 64bit did require that patch for me | 01:14 |
| fabbione | 32bit no | 01:14 |
| fabbione | now | 01:14 |
| fabbione | the gcc thing is another story | 01:15 |
| makx | the gcc thing is to make it working, linking? | 01:15 |
| fabbione | exactly | 01:15 |
| makx | davem doesn't like gcc-4.0 irc | 01:15 |
| fabbione | it FTBFS with breezy gcc-4.0 due to some linking error to libgcc | 01:15 |
| fabbione | so we did switch to gcc-3.3 or 3.4 | 01:15 |
| fabbione | in 32 bit | 01:16 |
| makx | does ubuntu has build logs? | 01:16 |
| fabbione | so that works fine as a combination | 01:16 |
| fabbione | makx: yes | 01:16 |
| fabbione | http://bld-3.mmjgroup.com/buildLogs/k/klibc/ <- | 01:16 |
| makx | nice :) | 01:16 |
| fabbione | but not all of them are there | 01:16 |
| fabbione | some tests have been done offline | 01:16 |
| dilinger | fabbione: everything still ok? | 02:20 |
| fabbione | dilinger: yes! that machine is fast | 02:20 |
| fabbione | if we can't find a place where to host it, i will take it here.. | 02:21 |
| fabbione | i have bw and ips | 02:21 |
| dilinger | haha | 02:21 |
| dilinger | alright, i'm off to work. later. | 02:21 |
| fabbione | i am off to nap and school | 02:22 |
| fabbione | later | 02:22 |
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