Messages in this thread |  | | Date | Sat, 26 May 2001 11:36:22 -0300 (BRST) | From | Rik van Riel <> | Subject | Re: Linux-2.4.5 |
| |
On Sat, 26 May 2001, Andrea Arcangeli wrote: > On Sat, May 26, 2001 at 01:45:27AM -0300, Rik van Riel wrote: > > 3) If the device driver needs to allocate something, it > > has from zone->pages_min*3/4 down to zone->pages_min/4 > > space to allocate stuff, this should be very useful > > for swap or mmap() over the network, or to encrypted > > block devices, etc... > > Anything supposed to work because there's enough memory between > zone->pages_min*3/4 and zone->pages_min/4 is just obviously broken > period.
No. It's not about having enough memory between those levels. It's about _failing_ the allocation when you reach a limit.
> > > Can you try to simply change NR_RESERVED to say 200*MAX_BUF_PER_PAGE > > > and see if it makes a difference? > > > > No Comment(tm) *grin* > > I'm having lots of fun, thanks.
Now _this_ is tweaking magic limits ;)
cheers,
Rik -- Virtual memory is like a game you can't win; However, without VM there's truly nothing to lose...
http://www.surriel.com/ http://distro.conectiva.com/
Send all your spam to aardvark@nl.linux.org (spam digging piggy)
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |