On Tue, 6 Jul 2004, Andrew Morton wrote:

> Brad Fitzpatrick <brad@danga.com> wrote:
> >
> > I've got a couple boxes here that keep running out of lowmem after about a
> >  day of uptime, rendering them almost entirely unusable.  (OOM killer
> >  taking out processes left and right, despite 1.5 GB highmem available...)
> >
> >  From what I can tell, nfs_inode_cache isn't responding to memory pressure
> >  and cleaning itself (enough?).
>
> It works OK here.  Please provide kernel version and full NFS mount options.

2.6.7, both client and server.

Both machines are exporting 14 filesystems (each ext3 on 3w-9xxx) and
mounting the other's 14 over NFSv3:


/dev/sda2 on / type ext3 (rw,noatime,errors=remount-ro)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda1 on /boot type ext2 (rw,noatime)
/dev/sda4 on /var/mogdata/dev15 type ext2 (rw,noatime)
/dev/sdb1 on /var/mogdata/dev16 type ext3 (rw,noatime)
/dev/sdc1 on /var/mogdata/dev17 type ext3 (rw,noatime)
/dev/sdd1 on /var/mogdata/dev18 type ext3 (rw,noatime)
/dev/sde1 on /var/mogdata/dev19 type ext3 (rw,noatime)
/dev/sdf1 on /var/mogdata/dev20 type ext3 (rw,noatime)
/dev/sdg1 on /var/mogdata/dev21 type ext3 (rw,noatime)
/dev/sdh1 on /var/mogdata/dev22 type ext3 (rw,noatime)
/dev/sdi1 on /var/mogdata/dev23 type ext3 (rw,noatime)
/dev/sdj1 on /var/mogdata/dev24 type ext3 (rw,noatime)
/dev/sdk1 on /var/mogdata/dev25 type ext3 (rw,noatime)
/dev/sdl1 on /var/mogdata/dev26 type ext3 (rw,noatime)
/dev/sdm1 on /var/mogdata/dev27 type ext3 (rw,noatime)
/dev/sdn1 on /var/mogdata/dev28 type ext3 (rw,noatime)
10.0.0.81:/var/mogdata/dev11 on /mnt/mogilefs/sto1/dev11 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev7 on /mnt/mogilefs/sto1/dev7 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev2 on /mnt/mogilefs/sto1/dev2 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev1 on /mnt/mogilefs/sto1/dev1 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev13 on /mnt/mogilefs/sto1/dev13 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev6 on /mnt/mogilefs/sto1/dev6 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev3 on /mnt/mogilefs/sto1/dev3 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev9 on /mnt/mogilefs/sto1/dev9 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev12 on /mnt/mogilefs/sto1/dev12 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev14 on /mnt/mogilefs/sto1/dev14 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev8 on /mnt/mogilefs/sto1/dev8 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev4 on /mnt/mogilefs/sto1/dev4 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev10 on /mnt/mogilefs/sto1/dev10 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)
10.0.0.81:/var/mogdata/dev5 on /mnt/mogilefs/sto1/dev5 type nfs (rw,noatime,timeo=1,retrans=1,soft,addr=10.0.0.81)


The soft option is required for the application.  (a highly-available
distributed filesystem of sorts)

Kernel config attached.

I'll gladly provide more info upon request.

- Brad