On Sun, Sep 09, 2007 at 08:52:58PM +0200, Bernhard Walle wrote: > * Yinghai Lu <yhlu.kernel at gmail.com> [2007-09-09 19:27]: > > > > > > +#ifdef CONFIG_KEXEC > > ... > > > > CONFIG_KEXEC or CONFIG_CRASH_DUMP? > > Good question. The crashkernel parameter was CONFIG_KEXEC before, and > I also wondered why, but I didn't change this because maybe there's > some reason I don't know. > > Vivek, do you know why this was CONFIG_KEXEC? > > Bernhard, As Eric mentioned, CONFIG_CRASH_DUMP has been used for all dump capturing infrastructure and rest of the kexec and kexec on panic functionality has been put under CONFIG_KEXEC. Keeping memory reservation under CONFIG_KEXEC helps in a sense when somebody is not using a relocatable kernel and uses a custom kernel for dump capture. In that case he does not have to enable CONFIG_CRASH_DUMP in the first kernel. Thanks Vivek