On Thu, Dec 07, 2006 at 12:36:53PM +0100, Gabor Gombas wrote: > On Wed, Dec 06, 2006 at 04:01:28PM -0800, Max A. wrote: > > > Why kernel in the case of panic cannot simply switch the screen to the > > text mode and print out a message there? > > Because that is quite a complex task on a modern graphics card. Usually > there is no way to switch to a mode (be it text or graphics) without > knowing the current mode, and that information is only present in the X > server, not in the kernel. And since the kernel is in panic, the X > server can not run and can not do the mode switch. > > I think there are patches to print panic messages to the frame buffer if > it is in use; but that still requires the X server to be configured to > use the kernel-provided frame buffer, and that can be quite slow (and it > also has other problems like not working on dual-head setups etc.) >
Sounds like another reason to have a serial console. Doug. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
