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