Re: Silent reboots in head _at_r248550 starting xdm with x11/nvidia-driver

From: Konstantin Belousov <kostikbel_at_gmail.com>
Date: Wed, 20 Mar 2013 19:44:58 +0200
On Wed, Mar 20, 2013 at 10:37:59AM -0700, David Wolfskill wrote:
> On Wed, Mar 20, 2013 at 07:13:41PM +0200, Konstantin Belousov wrote:
> > ...
> > Did you rebuild the nvidia driver after the update ?
> > Do you have a core dump partition configured ?
> 
> (I note that I have, in the past, captured crash dumps from head running
> on this machine with this configuration.)
> 
> > Try to set vfs.unmapped_buf_allowed=0 at the loader prompt and see
> > does it change anything.
> 
> OK; I tried this, then booted without attempting to start X in any way.
> I then logged in as root and verified that
> 
> 	sysctl vfs.unmapped_buf_allowed
> 
> reported "0".
> 
> I then issued "kldload nvidia.ko" (and verified that it was loaded via
> kldstat).
> 
> I then started xdm, and (as before), got an unclean reboot.  (So: no
> difference in behavior as far as I can tell.)

Ok. The best idea I have right now is to rebuild the nvidia.ko.
Do you have a firewire port on the laptop ?

Received on Wed Mar 20 2013 - 16:45:07 UTC

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