On Wed, 1 Feb 2012, Manuel Bouyer wrote:
On Tue, Jan 31, 2012 at 07:31:32AM -0800, Paul Goyette wrote:I've got a system with both serial and USB keyboard attached, and I would like to get into ddb after the system has booted (to single-user mode). I've verified that ddb.fromconsole is set and I've used hw.cnmagic to create a keystroke sequence "QQ" (0x51 0x51) but it does not get me into ddb.I don't think hw.cnmagic is handled by wskbd, but ctrl-alt-esc should work with PS/2 and USB keyboards.
Unfortunately the kernel being booted has wskbd so Ctrl-Alt-ESC does not work.
I was able to get 'gdb -write' to work, although 'crash' did not allow me to write to memory.
------------------------------------------------------------------------- | Paul Goyette | PGP Key fingerprint: | E-mail addresses: | | Customer Service | FA29 0E3B 35AF E8AE 6651 | paul at whooppee.com | | Network Engineer | 0786 F758 55DE 53BA 7731 | pgoyette at juniper.net | | Kernel Developer | | pgoyette at netbsd.org | -------------------------------------------------------------------------