Messages in this thread | | | Date | Fri, 15 Jan 1999 11:57:32 +0100 (MEZ) | From | "Dr. Michael Weller" <> | Subject | Max. Physical Memory Amount |
| |
With a friend I've setup a 4 CPU Compaq Proliant 5500 (Don't pin me down on that number, I'd have to recheck; it's just some rack mounted high availability hardware) using a standard 2.0.36 based linux distrib. Well, we added the new Compaq diskarray driver (had to use a little bit older diskarray controller, as that is the only one supported), and the machine now nicely works under linux standalone on a part (48gig) of an external Raid-5 drive bay.
Problem is, the kernel explicitly refuses to accept more than 1Gig of main memory.
Now, my question is: Is there a very good reason for this (I can see you might not get 4G of physical memory for some reasons, but I'd have expected at least 3G to work.) ?
I checked the source, and it appears to be a simple sanity check in head.c. Can I savely remove it, what is the highest memory amount I can hope to work w/o a crash?
I noticed the decent development kernels handel this different. It seems they would go almost up to 4GB. Is that right?
Even if so, I'd be happy if I could avoid installing yet another kernel on that machine (I don't want be forced to modify the rest of the installation due to 2.0 2.2 incompats), so if hacking the 2.0.36 would work I'd be more happy.
Is there anyone out with an advice to us?
--
Michael Weller: eowmob@exp-math.uni-essen.de, eowmob@ms.exp-math.uni-essen.de, or even mat42b@spi.power.uni-essen.de. If you encounter an eowmob account on any machine in the net, it's very likely it's me.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |