Messages in this thread | | | Date | Mon, 9 Nov 1998 17:01:51 +0100 (CET) | From | Rik van Riel <> | Subject | Re: [PATCH] Patch to Memory Subsystem ... (Needed?) |
| |
On Sat, 7 Nov 1998, Brian Schau wrote:
> But that was exactly the problem. I ran out of physical and swap > memory, so root couldn't get a login to fix things. I can add yet > another 128Mb swapfile and be happy about that UNTIL this swapfile is > exhausted too. Then I will be in deep sh*t again ......
I guess this should be clear by now :)
> 3) I sense that people doesn't quite 'like' the patch (idea). That's > fine with me. All I asked for was for somebody to spend 5 minutes on > validating the changes so that I could safely use the patch for private > purpose ....
Now that I think of it, the patch is _not_ safe.
Consider the situation where no program is allocating memory and the disk cache has eaten everything exept the last 2 MB. The rootpages limit is set to 4 MB, swap is full and the page/buffer cache is using 66% of real memory.
Now a userland program horribly fails, despite the fact that 256 of your 384 MB are used for disk cache... [more comments not necessary]
cheers,
Rik -- slowly getting used to dvorak kbd layout... +-------------------------------------------------------------------+ | Linux memory management tour guide. H.H.vanRiel@phys.uu.nl | | Scouting Vries cubscout leader. http://www.phys.uu.nl/~riel/ | +-------------------------------------------------------------------+
- 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/
| |