| diwic | Hi, are there any 4.4 Ubuntu kernels for xenial somewhere for testing? I'm seeing a regression from ubuntu-xenial-4.3 and upstream-vanilla-4.4 and I'd like to see if the ubuntu-ified 4.4 is affected or not. | 10:16 |
|---|---|---|
| diwic | (I e, our 4.3 works, upstream's 4.4 does not) | 10:17 |
| apw | diwic, yes in ppa:canonical-kernel-team/ubuntu/unstable ... | 10:17 |
| apw | though i think we know it has a number of issues still, cking was tracking at least two | 10:18 |
| diwic | issues such as "you're computer will catch fire" or such as "if you have ppc64el, once in a million, it will consume 2% more power" ? | 10:19 |
| diwic | s/you're/your | 10:19 |
| diwic | apw, i e, should I try it or not :-) | 10:19 |
| cking | apw, yep, there an issse introduced after 4.4-rc6 that causes grub-install to break, commit d3805611130af9b9 ("Split bios on chunk boundaries) | 10:19 |
| apw | "makes grub2 explode in your face sometimes" ... | 10:19 |
| diwic | that sounds bad enough, thanks | 10:20 |
| apw | diwic, but that is in mainline too | 10:20 |
| cking | apparent a fix for this is coming "real soon" | 10:20 |
| apw | cking, was there anohter one, or was that the intel idle performance stat thing ? | 10:20 |
| apw | (that isn | 10:20 |
| apw | (that isn't an issue at all in fact) | 10:20 |
| cking | apw, that was actually a fix to intel_pstate that actually is fine as it was shown to save ~1+ watts on a test scenario where it looked like the CPU was being exercised more because it was just in a lower p state | 10:21 |
| apw | ok so only one real issue remaining | 10:21 |
| cking | one real issue that we are aware of ;-) | 10:22 |
| diwic | fwiw, it's my touchpad that stopped working on 4.3 -> 4.4 | 10:22 |
| caribou | apw: FYI, just found created LP: #1532146, I should have a fix handy soon | 10:25 |
| ubot5 | Launchpad bug 1532146 in initramfs-tools (Ubuntu) "update-initramfs fails for MODULES=dep when root is on nvme device" [Medium,Confirmed] https://launchpad.net/bugs/1532146 | 10:25 |
| caribou | apw: I'll also forward to debian which has the same issue | 10:25 |
| cking | diwic, i guess wait until the next release and if it still plays up, file a bug and get jsalisbury to help you bisect it | 10:32 |
| cking | s/next release/next kernel/ | 10:32 |
| diwic | cking, you mean next kernel in the unstable ppa? | 10:33 |
| cking | diwic, well, the next one in the unstable ppa that fixes the grub-install bug :-/ | 10:34 |
| * cking has no idea when that will be, sorry | 10:35 | |
| apw | caribou, ok ta, i have another fix i need to get into initramfs-tools pretty soon too, so if you get me the fix i'll wrap those two up together | 10:35 |
| caribou | apw: sure, I should have the debdiff attached to the case in a few minutes | 10:36 |
| diwic | cking, ok :-) I suppose that we can't just revert the patch for the time being? | 10:36 |
| caribou | apw: I ran into this because yet another case of OOM panic during a kernel crash dump on trusty | 10:36 |
| caribou | apw: initramfs was again too big | 10:37 |
| caribou | apw: I'm soo happy I fixed this problem in Xenial | 10:37 |
| diwic | cking, well, if it doesn't ends up getting fixed soon anyhow | 10:37 |
| apw | caribou, yeah, that was a good bit of work to be proud of | 10:38 |
| === ddstreet_away is now known as ddstreet | ||
| caribou | apw: debdiff for LP: #1532146 is in the bug | 13:26 |
| ubot5 | Launchpad bug 1532146 in initramfs-tools (Ubuntu) "update-initramfs fails for MODULES=dep when root is on nvme device" [Medium,Confirmed] https://launchpad.net/bugs/1532146 | 13:26 |
| caribou | apw: FYI, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785147 claims to fix this for Debian but it is in Experimental & not in Sid. | 13:33 |
| ubot5 | Debian bug 785147 in initramfs-tools "initramfs-tools: NVMe boot drives not supported" [Important,Fixed] | 13:33 |
| xnox | i can even test that... | 13:36 |
| xnox | cause i've been failing to install on to my nvme laptop for weeks now. | 13:36 |
| xnox | caribou, we will want it backported for trusty too... no? | 13:37 |
| xnox | cause cking and I worked on supporting nvme drives in trusty..... | 13:37 |
| caribou | xnox: that was my next step | 13:38 |
| caribou | xnox: I got the problem on Trusty & tested the fix there | 13:38 |
| xnox | ack ;) | 13:38 |
| caribou | xnox: so the SRU should be trivial | 13:38 |
| caribou | xnox: it is mostly important for Xenial, since I changed kdump-tools to produce specific initrd files using MODULES=dep | 13:39 |
| caribou | xnox: but it would be good for trusty too if someone decides to use MODULES=dep | 13:39 |
| apw | caribou, ack, prolly will be monday when i do the upload, i've got a lot on my "today" plate | 13:54 |
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| === LocutusOfBorg is now known as LocutusOfBorg1 | ||
| === LocutusOfBorg1 is now known as LocutusOfBorg | ||
| killertofu | Wondering if I can get somebody to help with https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1310800 | 17:56 |
| ubot5 | Launchpad bug 1310800 in linux (Ubuntu) "056a:0302 Trusty Tahr, kernel 3.13: automatic load of wacom.ko driver cause a "hard" kernel panic" [High,Confirmed] | 17:56 |
| killertofu | I diagnosed the issue and provided a patch to fix it four months ago (comment #23), but nothing seems to have been done with it... | 17:57 |
| henrix | killertofu: ugg, that was a long time ago. i'll have a look at that | 18:04 |
| kamal | killertofu, hi. thanks for bringing it up here | 18:04 |
| kamal | henrix, :-) | 18:04 |
| henrix | kamal: heh, exactly at the same time :-) | 18:04 |
| kamal | killertofu, henrix and I are the maintainers for 3.13 and 1.16 ... we'll *both* take an immediate look at that! | 18:05 |
| killertofu | glad to have found you two then! :) | 18:06 |
| wxl | hey does anyone know if exfat support has reached the kernel yet? | 18:13 |
| kamal | killertofu, ok, we've got the wacom patch in the pipeline for the next cycles of trusty (3.13) and lts-backport-utopic (3.16) ... i.e. it will likely appear in the kernels that will enter the -proposed channel early next week. | 18:37 |
| kamal | killertofu, a bot will post a message to bug 1310800 once that kernel is ready for verification testing. thanks again for the heads-up on this. | 18:39 |
| ubot5 | bug 1310800 in linux (Ubuntu) "056a:0302 Trusty Tahr, kernel 3.13: automatic load of wacom.ko driver cause a "hard" kernel panic" [High,Confirmed] https://launchpad.net/bugs/1310800 | 18:39 |
| killertofu | kamal: awesome, thanks :) | 18:41 |
| hallyn | all right, lemme tkae a look at the src for bug 1531747 | 21:15 |
| ubot5 | bug 1531747 in linux (Ubuntu Xenial) "overlay: mkdir fails if directory exists in lowerdir in a user namespace" [High,Triaged] https://launchpad.net/bugs/1531747 | 21:15 |
| skoe_ | Hi, I want to debug an alsa issue (for the first time) on Xenial Xerus. https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS seems to be the wrong way - at least I don't see a DKMS package there. Can somebody give me a pointer? | 22:03 |
| arges | skoe_: that wiki may be out of date. Have you filed a bug with your current issue? You can use 'ubuntu-bug linux' for example | 22:11 |
| skoe_ | It's that one: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1525554 | 22:13 |
| ubot5 | Launchpad bug 1525554 in alsa-driver (Ubuntu) "[HP ProBook 470 G3, Intel Skylake HDMI, Digital Out, HDMI] No sound at all" [Undecided,Incomplete] | 22:13 |
| skoe_ | But as I'm a software developer anyway I'm interested in looking into it nevertheless. Play a bit with printk and see what happens :) | 22:14 |
| arges | skoe_: Well first thing would be to see if this is a regression of sorts then if so, locating the commit(s) that are missing or break it | 22:16 |
| arges | skoe_: did this work in 14.04 ? | 22:16 |
| skoe_ | The machine is new (xmas). It didn't work on 15.10 neither, but IIRC I didn't try 14.04. | 22:17 |
| arges | and can you play with alsamixer to get settings working? it could be bad defaults? | 22:17 |
| arges | my skylake machine uses analog out because I haven't 'upgraded' to hdmi yet : ) | 22:17 |
| skoe_ | It has no codec when the issue is there. The last it says is [ 145.033347] snd_hda_intel 0000:00:1f.3: no codecs initialized | 22:18 |
| skoe_ | Look at https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1525554/comments/11 | 22:19 |
| ubot5 | Launchpad bug 1525554 in alsa-driver (Ubuntu) "[HP ProBook 470 G3, Intel Skylake HDMI, Digital Out, HDMI] No sound at all" [Undecided,Incomplete] | 22:19 |
| arges | skoe_: ok | 22:19 |
| arges | i'll point this at somebody who knows more about skylake patches | 22:20 |
| skoe_ | Seems like it times out first (...probe error...) and gets a spurious response later (0x14f150f4). | 22:21 |
| skoe_ | The same magic number is in the patch for this codec. Seems to be its ID. (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454656) | 22:22 |
| ubot5 | Launchpad bug 1454656 in HWE Next "Add support for Conexant codecs CX20721, CX20722, CX20723 and CX20724" [Undecided,Fix committed] | 22:22 |
| skoe_ | Yeah, thanks. I'll stay here and see what happens :) | 22:22 |
| arges | skoe_: feel free to ping people here next week about it. good luck | 22:24 |
| skoe_ | Thanks, I will | 22:25 |
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