[14:11] <JPelletier> Hi, someone can help me investigate a boot hang issue?
[14:11] <JPelletier> Trying to get more logs, don't know if it's possible / how
[14:54] <apw> JPelletier, boot logs from what kind of setup, and how is it hanging
[14:54] <apw> JPelletier, you might find you have more logs than you think if you sysrq and request a sync
[14:55] <apw> JPelletier, and booting without splash and with debug sometimes gets you more information
[15:03] <JPelletier> apw: I tried to boot with earlyprintk=efi and my system freeze right after [ 0.00000] bootconsole [earlyefi0] disabled
[15:04] <JPelletier> apw: System freeze randomly on reboot, like once every 20-30 reboot when I'm using 2GB memory and once every 100 reboots or more when using 4GB memory
[15:04] <apw> well that is where the bootconsole hands off to the kernle console and there is a period where no messages come out, they are buffered
[15:05] <apw> frankly that is going to be a pig to figure out, if it happens so early you get no diagnostics
[15:05] <apw> and is that uncommon
[15:05] <JPelletier> Ok and is there a way to know why it's freezed? I have nothing in journalctl when the freeze occur
[15:06] <JPelletier> Since changing my memory have an impact, any idea on what could be the cause? Ran memtest on both without issue
[15:06] <apw> JPelletier, pretty much not from what you have, if you know of a kernle which does not have this issue for instance it might be findable via a bisect
[15:07] <apw> or you might get somewhere adding debugging _if_ you can get some output out, but that is tricky if it is happening that early
[15:07] <apw> or if you have one of those debug boards which give you hints as to status
[15:07] <JPelletier> I tried with server 16.04.2 16.10 and 17.04, also tried Kernel 4.12.2 in 17.04 - Same issue
[15:08] <JPelletier> No debug boards, don't know what this is?
[15:09] <apw> int 80 board have digits on the you can set in boot, not that then
[15:09] <JPelletier> I can recompile the kernel, it's easy, if it can help
[15:10] <JPelletier> I tried to boot with earlyprintk=efi,keep but it really slow, like every line take 3-4 seconds to print
[15:11] <JPelletier> BTW, it's on an Intel NUC6CAY
[15:16] <apw> does that nuc have the remote serial interface thing built in? 
[15:16] <apw> you might have more luck sending the console there if so
[15:18] <JPelletier> Humm not sure what you talking about, is this Serial-over-LAN ?
[15:18] <apw> yes that
[15:20] <JPelletier> I'm trying to find, not sure since it's an entry model
[15:24] <JPelletier> No  it's not supported, it's a feature of vPro and I don't have vPro
[20:22] <banshi> hello all
[20:22] <banshi> take a look please: http://paste.ubuntu.com/25134780/   How do I compile linux-headers* after that error?
[20:28] <apw> that looks like a debian kernel package form perhaps ? 
[20:33] <banshi> man, I'm real dummy in kernel/deb building
[20:34] <banshi> just tried to do like https://www.cyberciti.biz/faq/debian-ubuntu-building-installing-a-custom-linux-kernel/
[20:35] <banshi> apw, I'm building it on debian, yes
[20:41] <magicline> cannot stat ‘REPORTING-BUGS’ the file is missing 
[20:41] <magicline> https://www.kernel.org/pub/linux/docs/lkml/reporting-bugs.html