/srv/irclogs.ubuntu.com/2016/03/01/#ubuntu-kernel.txt

=== AceLan__ is now known as AceLan
=== shengyao__ is now known as shengyao
apwrharper, hrmm, no that just sounds odd to me normally they would be the same as even your first level ports are on a hub08:42
apwrharper, i would ask you to file a bug, and get straight to bisecting for it as it worked before08:42
tjaaltonis the amd64 build of 4.4.0-9 stuck somehow?10:32
tjaaltonhttps://launchpad.net/ubuntu/+source/linux/4.4.0-9.24/+build/927916810:34
tjaaltonnah, done now11:13
apwtjaalton, was stuck indeed11:34
tjaaltonah11:34
tseliotapw: hey, would this be a good pull request? http://paste.ubuntu.com/15256740/11:35
tseliotbjf: my work is complete, and applies cleanly, with zero conflicts ^11:38
tseliotand it works well :)11:38
apwtseliot, i am just going to assume you are jesting11:39
tseliotso, if that pull request is good, shall I paste it in the bug report or send it to the mailing list?11:39
tseliotapw: I didn't say it was just a couple of commits11:40
apwtseliot, so you are serious ... ugg, good in the sense it is properly formed, bad in the sense there is like 200 commits11:40
apwtseliot, i'd need to fetch it to see how impactful it is in !amdgpu11:41
apwtseliot, but if its what you need, sending it to the mailing list is your next thing ... but do add some "why" to the top of the pull request11:42
tseliotapw: ok, I am also going to complete the bug report, just in case11:42
apwtseliot, thanks indeed11:46
apwtseliot, though i man never invite you to meet my parents after this11:47
tseliotapw: am I detecting a hint of sarcasm? :P11:47
apwjust a hint11:47
tseliot:D11:47
=== rcj` is now known as rcj
rtgleitao, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1481357/comments/1315:49
ubot5Launchpad bug 1481357 in linux (Ubuntu Xenial) "[LTCTest][Kernel][OP810]Ubuntu14.04.3: kernel call trace while continuously switching between smt on/off and changing subcores" [Medium,Fix released]15:49
peat-psuwit_Could anyone help with using backport tree? I ran ./gentree.py --integrate ... and it said "no such file or directory: <kernel-target>/backports/Kconfig"16:04
apwpeat-psuwit_, i am not sure i know what gentree.py is for ?16:10
peat-psuwit_apw: like, in this one: https://github.com/ubuntu-phonedations/backports16:10
peat-psuwit_apw: I don't know what it's called.16:11
apwhrm, you would have to talk to the phonedations lot, and i am struggling to find out where they hang out16:12
bdmurrayapw: Do you have an opinion on bug 1550719? My specific question is should usb-devices be in addition to lsusb or instead of?16:15
ubot5bug 1550719 in apport (Ubuntu) "Add output of usb-devices when ubuntu-bug linux or apport-collect'ing existing report affecting linux (Ubuntu)" [Wishlist,Triaged] https://launchpad.net/bugs/155071916:15
peat-psuwit_apw: Ok, Thank you. I guessed they might be in #ubuntu-touch. I'll try to ask there.16:15
apwpeat-psuwit_, worth a shot indeed16:16
apwbdmurray, if the upstream maintainers are complaining we have something missing in our bug reports it seems reasonable to add it, we're uploading a ton of stuff already i am sure it will not make the size any different; someone would want to check that file is password freee, bit i expect it to be so16:17
bdmurrayapw: okay16:18
apwyeah reading the rest of the commentary it seems that this is not expected to have private info in it, so that sounds fine, i wonder if lsusb is any use with that attached, but one problem at a time :)16:19
leitaortg, replied to your comment. Thanks!16:33
rtgleitao, I'm pretty sure we have not changed how the initrd is built, so I'm wondering if the tester actually installed both kernel packages.16:35
leitaortg, right. It might be a problem with the test. I will double check that16:36
leitaoThanks16:36
leitaortg, yea. It seems that they wish to have something that never existed in 3.19, which means that this is NOT a regression. 16:40
rtgleitao, I'm good with that :) I'm going to assume until otherwise notified that the bug is solved.16:41
jdstrandjsalisbury: fyi, I left feedback for bug 154761917:32
ubot5bug 1547619 in linux (Ubuntu Xenial) "Intermittent screen blinking with 4k external mini display port with 4.4 kernels" [Medium,In progress] https://launchpad.net/bugs/154761917:32
jsalisburyjdstrand, ack, I'll take a look17:54
jdstrandjsalisbury: thanks!18:05
jsalisburyjdstrand, np.  sorry that we have to use the upstream kernel for testing.  18:06
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rtgjderose, could you open a new bug regarding ureadahead ?19:13
jderosertg: after looking into it more, i don't think there's an issue... the warnings about relative paths seem expected, even though there are a lot of them these days19:15
jderosertg: but if it seems like there is a new bug, i'll definitely file a bug :)19:16
rtgjderose, I haven't looked in awhile. Is there actually valid ureadahead info being generated ?19:16
jderosertg: i'm not 100% sure about that, it's a bit hard to tell from the logging. currently my theory is valid entries are being generated, but that there are (for whatever reason) a lot more relative paths that are getting ignored during the scan19:17
rtgjderose, I'll try to remember to have a look tomorrow.19:18
jderosertg: this caught my attention at first because there are so many ureadahead warnings in syslog, but maybe their expected, dunno19:20
rtgjderose, I haven't touched it since Ubuntu was concerned about boot speeds (which has been a few releases)19:20
ngomeshello , i have a question 21:56
apw(just ask if you have a question)21:56
ngomesas far as my understanding from linux,  the hardware devices are probed from the kernel in order to load apropriate driver. my question is : as far as hardware is probed , wouldn't it be faster to write to a file the hardware , than to always probe hardware every single boot ?21:57
xnoxngomes, .... you are assuming kernel has a device to read a file from.22:10
ngomesxnox, i know few about kernel , just wondering22:10
xnoxdoes not scale, cause hardware is different each time one boots, or even resumes from suspend/hybernation22:10
ngomeshow is different ?22:10
xnoxand it often needs to be re-initialised, in a device specific manner.22:11
ngomesi dont see any load module when i resume from suspend22:11
ngomesat least, at dmesg22:12
xnoxngomes, usb devices attached/detached missing, firmware updates changing how hardware is seen, bios updates changing properties as to what sort of things stuff depends on.22:12
xnoxin bios a user can go and change which things are available/visible/enabled, etc.22:12
xnoxit really is a different world each time. And probing, and loading things on demand is often faster than disk-io reading caches =)22:13
ngomeswould give a load error, no problem ?22:13
ngomeshmm ok22:13
ngomesi really don't know how probe works , so yeah , overall might be faster22:14
xnoxngomes, https://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface22:14
ngomesthat's ACPI , isnt that about power management ?22:15
xnoxbefore one can power things on and off, one needs to configure and find them....22:16
ngomesxnox, so kernel talks AML to ACPI in order to gather info about the hardware components ?22:20
ngomesok, i get a better ideia22:23
ngomesthanks for all22:23
ngomesbyebye22:23

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