Messages in this thread | | | Date | Tue, 11 Sep 2007 10:44:53 +0530 | From | Vivek Goyal <> | Subject | Re: [discuss] [patch 3/5] Use extended crashkernel command line on x86_64 |
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On Sun, Sep 09, 2007 at 08:52:58PM +0200, Bernhard Walle wrote: > * Yinghai Lu <yhlu.kernel@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.
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