On Mon, Oct 1, 2012 at 8:24 AM, Gioacchino Mazzurco gio@eigenlab.org wrote:
Hi all!
Some times ago' in ninux Pisa we was experiencing kernel powering off the machine caused by batman-adv, with ordex help we debugged what was happening and the issue was solved bat that was possible because it was happening on x86 computers ( with screen )
Now it SEEMS the same is happening but on mips ( Ubiquity M devices ) but here i don't know how to make sure the problem is this, the symptoms is exactly the same, someone have idea how to save the powering off kernel output on some file so after detach/attach cable we can find what happened ?
Your best option is getting a serial cable; you *might* try in /etc/config/system to enable persistent syslog output, and make it write to the flash , but no guarantees you'll catch the kernel panic that way. Serial console definitely would.
Does this happen every time?
"on powering off"
you mean when you issue a "reboot" command through ssh, or what? does it reboot succesfully, or simply hangs in there, requiring a manual power cycle?
We haven't come across anything similar, using this hardware: tl-mr3020, tl-mr3220, tl-mr3420, tl-wr842nd, ubnt bullet2 , ubnt bullet m2