[02:50] <brocktice> hi, I am having a strange ipv6 problem only in 4.4.0-81, I suspect the kernel, what is the best way to verify. Boot an earlier kernel?
[05:54] <apw> brocktice, yep that is definatly a first port of call
[12:11] <Lachezar> Hey all. X-Posting from #ubuntu as instructed:
[12:11] <Lachezar> I got bit by what seems to be a kernel bug: Java programs crash with SIGSEGV. However the bug seems to have been fixed in 3.16.43-2+deb8u2 and 4.9.30-2+deb9u2, but I'm on Ubuntu's 4.10.0-24-generic.
[12:17] <apw> Lachezar, likely fallout from the stackclash updates ... there are new kernels dropping into -proposed pretty much now, you might test one of those and see if it resolves your issue
[12:19] <Lachezar> apw: I have zesty-proposed enabled. Is "apt-get dist-upgrade" sufficient?
[12:21]  * apw wonders if zesty is yet built ...
[12:21] <ogra_> Lachezar, no, that brings in all newer packages from proposed ... you most likely only want to cherry pick one package and then disable proposed again 
[12:21] <ogra_> proposed tends to have test packages that could be severely broken
[12:21] <Lachezar> ogra_: I see. So I do not enable proposed, but download and 'dpkg -i' them?
[12:22] <ogra_> (indeed dist-upgrade usually has a (Y/N) question, so you could stop it)
[12:22] <apw> Lachezar, zesty is still building anyhow, it is one of the later ones in the list it seems, coming "soon"
[12:22] <ogra_> Lachezar, no, enable proposed but install via packag name 
[12:22] <ogra_> not just through some "update all" command
[12:23] <apw> something like .... enable proposed; apt-get update; apt-get install linux-generic; disable proposed; apt-get update
[12:23] <Lachezar> apw: Ah. OK.
[12:23] <Lachezar> ogra_: thanks.
[12:23] <apw> but as i say, we are in the process of spinning kernels (or is it plates) now
[12:25] <Lachezar> Kernels would be in proposed/main right? Not universe, multiverse etc.
[12:25] <apw> Lachezar, depends on the kernel, but for the primary ones for desktop/server etc yes, those would be in main
[20:24] <hallyn> all right, so confirmed, 4.8 kernel appears to cause my t440s screen to flicker every few minutes.  hasn't happened since downgrading to 4.4
[20:24] <hallyn> the random flicker was strangely stressful - may as well have been an electric shock
[21:42] <apw> hallyn, you know the drill ... bug please
[21:43] <hallyn> apw: well, this was intended as a datapoint in case you've heard other reports;  i need to get harder data to file a bug :)
[21:43] <hallyn> i'll keep my eye on it, boot back and forth, etc.
[21:44] <apw> hallyn, not heard of it no, though i guess i didn't run 4.8 very long
[21:44] <hallyn> i have to stay on xenial so i can keep running upstart :)
[21:45] <hallyn> mind you 4.8 seemed better with batt usage than 4.4
[21:50] <apw> hallyn, i think we did feel the same on battery
[21:50] <apw> hallyn, well you have the option of a 4.10 in xenial ... linux-hwe-edge
[21:50] <hallyn> so i'll boot back into that tomorrow and file a bug
[21:51] <hallyn> ah, i'll try that, thx
[21:51] <hallyn> (after tomorrow)
[21:51] <apw> heh yeah, and keep us informed
[21:51] <hallyn> will do