Re: 2.4.10pre11 vm rewrite fixes for mainline inclusion and testing

[Marcelo Tosatti]

On Tue, 18 Sep 2001, Marcelo Tosatti wrote:

> 
> 
> On Tue, 18 Sep 2001, Andrea Arcangeli wrote:
> 
> (testing now)

Well, unfortunately:

Sep 18 17:59:01 matrix PAM_pwdb[842]: (sshd) session opened for user
marcelo by (uid=0)
Sep 18 17:59:27 matrix kernel: __alloc_pages: 0-order allocation failed
(gfp=0x20/0) from c012c5fe
Sep 18 17:59:28 matrix sshd[860]: Accepted password for marcelo from
10.0.17.22 port 1020
Sep 18 17:59:29 matrix PAM_pwdb[860]: (sshd) session opened for user
marcelo by (uid=0)
Sep 18 17:59:42 matrix sshd[873]: Accepted password for marcelo from
10.0.17.22 port 1021
Sep 18 17:59:43 matrix PAM_pwdb[873]: (sshd) session opened for user
marcelo by (uid=0)
Sep 18 17:59:48 matrix PAM_pwdb[875]: (su) session opened for user root by
marcelo(uid=719)
Sep 18 17:59:55 matrix kernel: __alloc_pages: 0-order allocation failed
(gfp=0x20/0) from c012c5fe

(2GB RAM, 4way, 4 setiathome's, 2 fillmem 1GB each)

I really think we need the "fail: loop again: try_to_free_pages()" logic,
Andrea: If there is not enough memory we HAVE to block in the page
reclaiming work.

I'll try do work on some logic like that in 1h or so...