Re: dumbcon settings

[Svetoslav S. <ga...@st...>]

Quoting Warren Bell <wa...@ob...>:

> Hello...
> 
> I've suddenly become frantically busy, so I apologise for my silence... 
> 
> To answer your MUCH earlier question - yes, another happy customer with
> 3 pci NVIDIA cards and 1 AGP :)
> 
> I was just wondering... When I set dumbcon to a number higher than 6,
> the kernel goes crazy and panics... Are you aware of this problem? Is
> there a fix?

Hi ,

am, nice catch :)
 IMO(but i might be of course wrong)
 this is a bug and a missing feature,

the max number for dumbcon is 7 

1.) bug because the code that parses the cmdline does allow to set a bigger
number( it should limit to the maximum alowed)

2.) and a feature (would be nice to have probably) to select the number of
consoles per VT. currently it's hardcoded in include/linux/vt_kern.h 

MIN_NR_CONSOLES 1      /* must be at least 1 */
MAX_NR_CONSOLES 63     /* serial lines start at 64 */
MAX_NR_USER_CONSOLES 8 /* number of VCs per VT */

so (1VGA +7DUMB consoles) * 8 = MAX_NR_CONSOLES 

if you need more dumb consoles you should try lowering MAX_NR_USER_CONSOLES

or may be even better:

Aivils can you hack the code to alocate MIN_NR_CONSOLES for dumb consoles ?

and/or add a config option for MAX_NR_USER_CONSOLES ?


best,

svetljo  

PS.
Aivils are my assumptions correct ?
can you also fix "the bug"