linux motherboard dump recovery
<p>I vaguely remember a kernel extension where the last few KB of logging was saved to some ram on suitable motherboards.  This let you recover the dump from an oops/panic on the next boot.  Very useful for server farms.</p>

<p>Does anyone remember what that extension was called?  Or the motherboard feature to have that storage.</p>

<p>Is there a way to set aside some RAM and save it there instead (for an embedded system)?</p>