/srv/irclogs.ubuntu.com/2013/10/18/#ubuntu-kernel.txt

F41LHaving issues with 3.11 kernel. My 13.10 installation disc is even affected.07:42
F41LPossibly related to graphics? (AMD Radeon 7000 series) but recovery mode also locks up soon after entering.07:43
F41Lbooting 13.10 using 3.8 kernel appears to work somewhat normally, despite a KDE error on login.07:44
=== fmasi_afk is now known as fmasi
* apw groans09:40
ppisatiso, if you disable a feature in a pkg, and that feature built a file that was later referenced in a debian/*.install file, the build fails09:44
ppisatiso the real question is: how do i know which feature build what? or it's just a tril and error process? i guess the second one...09:45
apwnormally trial and error indeed10:02
infinityppisati: You either be intimately familiar with the configure and Makefiles or you build the package and see what changed. :P10:09
ppisatiand, let me guess, i can't reuse the ppaX id after a build failure10:14
infinityNope.10:21
infinityGood thing there's an unlimited number of integers.10:22
infinityAlso, good thing we have mechanisms for testing these things LOCALLY, so you don't have to look a fool with dozens of PPA test builds. :P10:22
infinity*hint, hint*10:22
* ppisati thinks infinity is a peeper...10:26
RAOFAlso, the ‘-nc’ option to debuild might be of interest to you.10:26
=== fmasi is now known as fmasi_afk
=== fmasi_afk is now known as fmasi
=== fmasi is now known as fmasi_afk
=== fmasi_afk is now known as fmasi
apwjodh, hey ... what is the startpar-bridge job for?  it seems to start a lot on my test box here13:26
jodhapw: sysvinit -> upstart transition-type stuff: slangasek's baby.13:28
apwjodh, oh ... hmmm i think13:38
apwjodh, it must run like 50 times on boot13:38
brendandcking, hi14:17
ckingbrendand, hi14:17
brendandcking, what you mentioned about getting the local time of cpu014:18
brendandcking, is that accesible in /sys or /proc?14:18
ckingbrendand, why do you need this?14:18
brendandcking, we want to write a hook for pm-suspend that gets the clock time at the start of the suspend process14:20
brendandcking, and also at the end of resume14:20
ckingbrendand, how about the easy way: "echo PM-SUSPEND-HOOK-START" | sudo tee /dev/msg ... and at the end of the test grep for it in dmesg14:23
ckingoops, I mean /dev/kmsg14:23
brendandcking, because fwts is rude and zaps kmsg14:24
brendand!14:24
brendandcking, :)14:24
brendandcking, we're using fwts to invoke the suspend (in order to get device-check etc) and it is clearing kmsg 14:25
brendandcking, although i'm not positive that's after the hook runs14:26
erle-i just reported a bug with waking up after suspense to RAM14:26
ckingbrendand, why not file a bug against fwts and specify what you want and I can look into adding it14:26
erle-there is a crash report in /var/crash14:26
erle-is it save to just append it?14:26
erle-or may it contain private data?14:26
brendandcking, we want to measure the time from the beginning of suspend to when the system is suspended. then from when it is requested to resume until user space is resumed14:27
brendandcking, if that sounds doable i can file a bug14:27
brendandcking, we're trying to do it at the moment but it's a little rough around the edges14:29
brendandi mean we *are* doing it14:29
ckingbrendand, doesn't fwts already report the duration of the suspend?14:29
brendandcking, we're not interested in the time it slept for though14:30
brendandcking, and does it report those things seperately or only the total duration?14:30
ckingbrendand, yup, it does not do what you require, I could add that though14:31
brendandcking, well, i don't want you to do my job for me, but if it would be more suitable to add it to fwts then i'd take you up on it14:32
ckingand/or not make it nuke the kernel messages14:32
ckingbrendand, when do you require a solution?14:33
brendandcking, well we want to get this fixed for 12.04.414:34
brendandcking, let me file a bug14:34
erle-bjf, crash report is coming :)14:34
ckingbrendand, file a bug and I will mull over it and get back to you on monday if it is easily do-able or not14:34
brendandcking, https://bugs.launchpad.net/bugs/124163814:38
ubot2Launchpad bug 1241638 in Firmware Test Suite "FWTS to measure the time from invoking suspend to suspend, then the time from waking system to user-space resume" [Undecided,New]14:38
ckingack14:39
=== fmasi is now known as fmasi_afk
=== fmasi_afk is now known as fmasi
slangasekapw: yeah, startpar-bridge triggers an awful lot15:35
slangasekapw: it becomes obsolete once everything is managed by upstart and not by sysvinit15:35
apwslangasek, with --debug on my test rig here (read a very slow machine) it is seemingly vomiting as the predominant output15:41
slangasekyes, it will do that15:41
slangasekits rules is 'start on started JOB!=startpar-bridge or stopped JOB!=startpar-bridge15:41
slangasek'15:41
slangaseks/rules/rule/15:41
slangasekso that's an awful lot of starts and stops, unfortunately15:41
apwso that starts and checks if yo umeant an oldstyle script i assume15:42
erle-jsalisbury, hi, i am the guy with the suspend bug15:45
erle-jsalisbury, i tried 3.12 and it works15:45
jsalisburyerle-, which bug number is it?15:46
erle-will saucy get kernel 3.12 or are you just planning to backport the fix?15:46
erle-https://bugs.launchpad.net/ubuntu/+source/linux/+bug/124158215:46
ubot2Launchpad bug 1241582 in linux (Ubuntu) "system freezes after suspend to RAM" [High,Confirmed]15:46
jsalisburyerle-, thanks.  Saucy will stay on the 3.11 kernel.  The next step is to identify the commit in 3.12 that fixes this and see if it was already sent for inclusion in the stable tree.15:47
jsalisburyerle-, we should probably test the latest 3.11 stable kernel first to see if it's already fixed there.15:48
erle-you mean upstream 3.11?15:48
jsalisburyerle-, if it's not, we can perform a reverse bisect to find the fix in 3.1215:48
jsalisburyerle-, correct.15:49
jsalisburyerle-, I'll post the links to upstream 3.11 in the bug report.15:49
erle-this?15:49
erle-http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.5-saucy/15:49
erle-kernel.org says 3.11.5 is latest15:49
jsalisburyerle-, yup, that's it.15:50
jsalisburyerle-, it would be great if you can test that one 15:50
erle-i would like a statement about the safety of apport in regards to privacy, i am somewhat curious15:51
erle-also about the files in /var/crash15:51
ogra_erle-, apport isnt developed by the NSA ... does that suffice ?15:52
ogra_(selinux is)15:52
erle-ogra_, i mean, does it take care of not to include potentially private information into reports?15:52
erle-like passwords in memory dumps15:52
erle-i dont like my passwords dumped on launchpad, you know? :)15:53
jsalisburyerle-, there is some info here: https://wiki.ubuntu.com/Apport15:53
ogra_oops, sorry i  mistook apport with apparmor15:53
ogra_(since this is the kernel channel my brain tripped over this)15:53
apwerle-, we don't take memory images from crashes in the normal case15:54
erle-jsalisbury, just another reboot and we will know15:55
jsalisburyerle-, great15:55
erle-jsalisbury, works15:57
erle-jsalisbury, and yes, i made sure that grub picked the right one15:57
jsalisburyerle-, thats good news.  that means the fix will make it into Saucy when it gets the 3.11.5 updates.15:58
erle-jsalisbury, yes15:59
erle-and i personally will just keep this one now15:59
erle-but i will purge the 3.12rc15:59
jsalisburyerle-, ok15:59
bjferle-, those commits should hit -proposed towards the end of next week and -updates in approx. 3 weeks16:00
erle-bjf, don't you think that this will hit a lot of users with certain hardware?16:00
erle-3 weeks seems long16:01
bjferle-, it takes 3 weeks to work though our stable process there are quite a few (197) commits in the next update and we like to do a little testing before just putting it out16:03
erle-bjf, yes, i understand that, it was just a comment16:06
* apw will be calling it a week in about half hour16:51
rtg_ppisati, can you have a look at bug #1239800 ?17:07
ubot2Launchpad bug 1239800 in linux (Ubuntu) "Soft lockup when running bonnie++ only at 1600 mt/s" [Medium,Incomplete] https://launchpad.net/bugs/123980017:07
erle-jsalisbury, do you have any link to a kernel changelog that refers to my problem?  (you don't have to look for one, but if you found one already i would be interested)17:22
jsalisburyerle-, I didn't do any searching on what specific commit fixes the bug17:25
erle-jsalisbury, ok17:26
erle-will 3.11.3 or something come into ubuntu release before 3.11.5 or wont it come at all?17:26
erle-maybe even a earlier version than 3.11.5 fixes the issue17:26
erle-but i dont want to try them all now17:27
jsalisburyerle-, 3.11.0-11.17 was already rebased to 3.11.3.  So there is always the possibility it was fixed in 3.11.417:29
rtgjsalisbury, saucy master-next is up to 3.11.517:36
jsalisburyrtg, ack.  17:36
jsalisburyerle-, so the next saucy release will be based on 3.11.517:37
erle-thank17:38
erle-and that means the 3 weeks you mentioned, right?17:38
jsalisburycorrect17:38
erle-and if anybody asks for help with this, i will propose updates-proposed for the meantime17:39
=== cmagina_ is now known as cmagina
* rtg -> EOW20:19
sn0wb1rdHello geeks, I have the "3.2.0-49-virtual" version of kernel on my 12.04 Ubuntu virtual machine. I am experiencing some issues with xfs with and found that this commit https://github.com/torvalds/linux/commit/3948659e30808fbaa7673bbe89de2ae9769e20a7 fixes the problem in 3.4 version of the kernel. There is no virtual kernel available for 3.4 or anything higher than "3.2.0-49-virtual". How do I backport the change and rebuild my kernel to include 21:11
sn0wb1rdthis fix?21:11
sn0wb1rdAlso is it possible to request for virtual kernel images for recent versions of kernel?21:12
bjfsn0wb1rd, that looks like a pretty trivial fix. please file a bug and add that information to the bug21:27
sn0wb1rdbjf: that is awesome. filing a bug now.21:29
sn0wb1rdbjf: Is this about getting virtual kernel images for recent versions of kernel?21:29
bjfsn0wb1rd, no, that will help get the fix into the kernel. then we'll roll out new kernels.21:32
sn0wb1rdOk, I'll file a bug with the information I have.21:32
* bjf is now afk21:32
sn0wb1rdbjf: https://bugs.launchpad.net/ubuntu/+bug/124184821:46
ubot2Launchpad bug 1241848 in Ubuntu "Request for updated Ubuntu virtual kernel images" [Undecided,Confirmed]21:46

Generated by irclog2html.py 2.7 by Marius Gedminas - find it at mg.pov.lt!