[00:45] <sub526> Hello all, my Ubuntu 16.04 machine crashes with “Kernel panic - not syncing: Fatal exception” and Netconsole crash log Call Trace has these two entries entry_SYSCALL_64_fastpath() and SyS_access(). Full log is here: https://pastebin.com/1agpFE38, any idea what could be the reason for the crash?
[00:53] <tomreyn> kernel taints G + O, "externally-built (“out-of-tree”) module was loaded" - which ones?
[00:54] <tomreyn> ah, dbg and osab
[00:56] <tomreyn> so what's osab?
[00:56] <tomreyn> sub526: ^
[00:57] <tomreyn> also, regular support for 16.04 ends in 2 months - just in case you're not aware (i assume you have to support it for longer?)
[00:57] <sub526> tomreyn : Its OS abstraction layer out-of-tree kernel module
[01:01] <sarnold> tomreyn: the kernel hasn't been updated in four years, support's probably not a big deal :) hehe
[01:01] <tomreyn> the only similarily sounding ones i can find online are abbreviated as OSAL (by NASA) and OAL (HVV Embedded). I assume the OSAB you're using is something proprietary?
[01:02] <sub526> tomreyn : Yes, OSAB is proprietary kernel module..
[01:02] <tomreyn> oh yes, pretty old indeed
[01:02] <tomreyn> does it happen with a current kernel image?
[01:03] <sub526> tomreyn : current kernel image means?
[01:03] <tomreyn> yopu were running a kernel image versioned 4.4.0-66-generic #87-Ubuntu
[01:04] <tomreyn> https://packages.ubuntu.com/search?suite=xenial-updates&exact=1&keywords=linux-image-generic
[01:04] <sub526> Yes, it crashes with 4.4.0-66-generic
[01:04] <tomreyn> is the current version for xenial (16.04.x)
[01:05] <tomreyn> so 4.4.0-201-generic #207
[01:05] <sub526> I'm having Ubuntu 16.04.4 LTS and "uname -r" shows 4.4.0-66-generic
[01:05] <tomreyn> yes, outdated
[01:06] <tomreyn> (and unsupported)
[01:07] <tomreyn> !uptodate
[01:08] <tomreyn> current point release is 16.04.7, see https://wiki.ubuntu.com/XenialXerus/ReleaseNotes
[01:13] <sub526> ubot5: what is the difference between 'apt upgrade' and 'apt full-upgrade'
[01:18] <tomreyn>    full-upgrade (apt-get(8))
[01:18] <tomreyn>        full-upgrade performs the function of upgrade but will remove currently installed packages if this is needed to upgrade the system as a whole.
[01:19] <tomreyn> sub526: ^
[01:19] <tomreyn> general (volunteer) support is availbale in channel #ubuntu