FireWire debugging (was Re: KGDB, serial ports, and MP)

2010-05-13 Thread David Young
On Thu, May 13, 2010 at 12:52:44PM +, Andrew Doran wrote: > Debugging via firewire is a much better bet.. > > It should only take a few hours to make the necessary adjustments to > libkvm and the driver. Nobody has stepped up to the plate yet though. Andrew, Will you write an outline of th

Re: KGDB, serial ports, and MP

2010-05-13 Thread Andrew Doran
Debugging via firewire is a much better bet.. It should only take a few hours to make the necessary adjustments to libkvm and the driver. Nobody has stepped up to the plate yet though. On Thu, May 13, 2010 at 08:26:10AM -0400, Greg Troxel wrote: > > The comment was made when I proposed that

Re: KGDB, serial ports, and MP

2010-05-13 Thread Greg Troxel
The comment was made when I proposed that fix is that it will NOT handle the MP case because splserial() doesn't affect other CPUs. And one of the commenters pointed me to places to look for how to do the MP part. Thanks - that makes sense. I haven't done that yet; it's on my to-do list

RE: KGDB, serial ports, and MP

2010-05-12 Thread Paul Koning
MP host to test it on... paul > -Original Message- > From: tech-kern-ow...@netbsd.org [mailto:tech-kern-ow...@netbsd.org] On > Behalf Of Greg Troxel > Sent: Wednesday, May 12, 2010 6:40 PM > To: tech-kern@netbsd.org > Subject: KGDB, serial ports, and MP > >

KGDB, serial ports, and MP

2010-05-12 Thread Greg Troxel
I've run into the bug described at: http://mail-index.netbsd.org/netbsd-bugs/2010/03/17/msg016596.html and the proposed fix (splserial) seems to work. This is on an amd64 VM; we'll try a physical (multi-cpu) machine as well. Reading the various messages, I get the impression that KGDB on MP