Messages in this thread | | | From | "Petr Vandrovec" <> | Date | Thu, 18 Jul 2002 23:42:18 +0200 | Subject | Re: 2.5.26 broken on headless boxes |
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On 18 Jul 02 at 22:18, Matthew Wilcox wrote: > On Thu, Jul 18, 2002 at 11:04:54PM +0200, Petr Vandrovec wrote: > > You have enabled CONFIG_VT without CONFIG_VGA_CONSOLE and > > CONFIG_DUMMY_CONSOLE. It is illegal configuration. > > Huh. So CONFIG_VT_CONSOLE is not enough any more? I really do think > this should be documented in Config.help.
CONFIG_VT_CONSOLE works other way around. If you set CONFIG_VT_CONSOLE, /dev/console can be displayed on your VTs (on your screen).
CONFIG_VGA_CONSOLE/CONFIG_DUMMY_CONSOLE determines whether your VT can be created at all - maybe _CONSOLE suffix is misleading - without having at least one displaying device virtual terminals cannot be build. I always thought that CONFIG_DUMMY_CONSOLE cannot be unset, but apparently it can...
And BTW, when such configuration worked for you last time? It does not look to me like that it should ever work.
> > To fix oopses, either enable 'Framebuffer devices' under 'Console > > drivers' section (you do not have to enable any fbdev driver, just > > check this option...), or disable CONFIG_VT. See arch/*/kernel/setup.c > > for explanation, no code in VT subsystem kernel expects conswitchp == NULL, > > but couple of architectures leaves sometime conswitchp uninitialized. > > well, this is on x86 ... Petr Vandrovec vandrove@vc.cvut.cz
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