Re: Ctrl-Alt-ESC during boot
:On Wed, 26 Jan 2005, Chuck Tuffli wrote:
:
:> boot -d does drop the OS into ddb, but after continuing, ctrl-alt-esc
:> doesn't break into ddb.
:
:I discovered (the hard way) that there is a kernel config option
:SC_DISABLE_DDBKEY which has that effect. Is there any chance that
:the kernel on the CD was compiled with that option? I suppose only(?)
:Matt would know. The option is not in the GENERIC kernel but is
:in LINT.
I'm a bit confused. SC_DISABLE_DDBKEY disables your ability to
enter the debugger through ctl-alt-esc. Why would you want to have
that option on by default?
ctl-alt-esc does eventually work if I boot -d and then 'cont', but
you have to realize that the system disables interrupts during early boot
so it won't see a ctl-alt-esc that early in the boot sequence.
-Matt
Matthew Dillon
<dillon@backplane.com>
討論串 (同標題文章)
完整討論串 (本文為第 6 之 13 篇)：