Re: Recent instabilities?

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

On Tue, Apr 05, 2022 at 00:06:03 +0200, Havard Eidnes wrote:

> >> > Please do.  I tried Control-Option-ESC on my Apple keyboard model
> >> > A1048 and it does exactly nothing.
> >
> > I have just successfully used C-A-Esc to drop into dbb on my mini g4
> > with a Sun Type 6 keyboard (that's what I have on the table, I will
> > have to bring the Apple keyboard from another room to specifically
> > test that).  I did that on a hung currentish (9.99.94) mini nad I
> > could do ps in ddb to see a bunch of tstiled threads.
> >
> > As macallan said, it doesn't return back from the polled mode properly
> > (on a rebooted, unstuck system), but re/plugging it made it work
> > again.
> 
> OK.  I'm guessing that if 'reboot' works, that's the next command
> after gathering status, so I can live with that.

No, the system was wedged in tstile.  issuing reboot at the ddb prompt
results in the kernel being stuck in "syncing disks".


> >> "Option" because it also has "Alt" printed on it in smaller
> >> letters.  Not sure that's correct...  How do I find out?
> >> "wsconsctl map" gives (among others)
> >>
> >> keycode 226 = Cmd2 Alt_L
> >> keycode 227 = Cmd Meta_L
> > [...]
> >> and "wsconsctl map" shows (among others)
> >>
> >> keycode 41 = Cmd_Debugger Escape
> >>
> >> However, there's no telling which modifiers one needs to use to
> >> trigger "Cmd_Debugger", and it certainly doesn't follow the
> >> pattern of the others, e.g.:
> >>
> >> keycode 4 = a A
> >>
> >> etc.  The ESC key certainly doesn't do "Cmd_Debugger" when
> >> pressed un-shifted(!).  So I have problems translating the code
> >> and admin command output into practice.  "Help!"
> >
> > No Cmd1?
> 
> Well, yes:
> 
> malus# wsconsctl map | grep Cmd
> keycode 41 = Cmd_Debugger Escape
[...]
> keycode 224 = Cmd1 Control_L
> keycode 226 = Cmd2 Alt_L
> keycode 227 = Cmd Meta_L
> malus# 
> 
> > If you look a bit earlier in wskbd.c you can see that to activate
> > Cmd_Foo mapping the driver checks that either Cmd is pressed or Cmd1
> > and Cmd2 are pressed.  So I guess Command-Esc (i.e. Cmd +
> > Cmd_Debugger) should do the trick for you.
> 
> So ... that would be Meta_L + ESC?  But which key is Meta_L? The
> "Apple / clover" key?

Yes.  I brought over the period-appropriate apple keyboard and tried
it and both Ctrl-Option-Esc and Command-Esc (i.e. Clover-Esc) work.
And the keyboard then works fine after continue too.


-uwe