[lkml]   [2002]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Recoverable RAM Disk wrote:
> Just wondering - has anyone ever given any thought to the idea of a RAM disk that is not erased on a warm boot?
> Obviously this is a bit architechture-specific - I don't think it's easily do-able on i386, but maybe it is other architechtures?

We did it for a product using PowerPC on compactPCI. Critical logs are stored
in ram beyond what the kernel uses, and it can be mapped in for processes to use

As long as the card has power, the information remains available, including
resets of the card.

The only tricky bit is that I don't know if a warm boot on a PC wipes ram or


Chris Friesen | MailStop: 043/33/F10
Nortel Networks | work: (613) 765-0557
3500 Carling Avenue | fax: (613) 765-2986
Nepean, ON K2H 8E9 Canada | email:
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:27    [W:0.040 / U:4.976 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site