Hi All,
After bringing the NAS up mentioned here earlier on the list I'm
having an "interesting" problem with NFS on it.
We export the storage using nfs version 3.
Copies onto the local filesystem on the NAS run fine, copying over
the network with scp and the like works fine as well.
However writing to an nfs-share from a different machine truncates
files at random sizes which appear to be multiples of 16K
Following is output from a test-case:
On the server in /etc/exports:
/data/tools 10.10.0.0/24(rw,async,no_root_squash) 127.0.0.1/8
(rw,async,no_root_squash)
Kernelsymbols:
Linux spinvis 2.6.14.2 #1 SMP Wed Feb 8 23:58:06 CET 2006 i686 Intel
(R) Xeon(TM) CPU 2.80GHz GenuineIntel GNU/Linux
Similar behaviour is observed with gentoo-sources-2.6.14-r5, same
options.
gzcat /proc/config.gz | grep NFS
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
CONFIG_NFSD=y
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
# CONFIG_NFSD_V4 is not set
CONFIG_NFSD_TCP=y
# CONFIG_ROOT_NFS is not set
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
[EMAIL PROTECTED] ~ 20:29:44 > mount
<partly snipped>
10.10.0.80:/data/tools on /root/tools type nfs
(rw,intr,lock,tcp,nfsvers=3,addr=10.10.0.80)
[EMAIL PROTECTED] ~ 20:29:56 > for i in `seq 1 30`; do dd count=1000 if=/dev/
zero of=/root/tools/test.tst; ls -la /root/tools/test.tst ; rm /root/
tools/test.tst ; done
1000+0 records in
1000+0 records out
dd: closing output file `/root/tools/test.tst': No space left on device
-rw-r--r-- 1 root root 163840 Feb 8 20:30 /root/tools/test.tst
1000+0 records in
1000+0 records out
dd: closing output file `/root/tools/test.tst': No space left on device
-rw-r--r-- 1 root root 98304 Feb 8 20:30 /root/tools/test.tst
1000+0 records in
1000+0 records out
dd: closing output file `/root/tools/test.tst': No space left on device
-rw-r--r-- 1 root root 98304 Feb 8 20:30 /root/tools/test.tst
1000+0 records in
1000+0 records out
dd: closing output file `/root/tools/test.tst': No space left on device
-rw-r--r-- 1 root root 131072 Feb 8 20:30 /root/tools/test.tst
1000+0 records in
1000+0 records out
dd: closing output file `/root/tools/test.tst': No space left on device
-rw-r--r-- 1 root root 163840 Feb 8 20:30 /root/tools/test.tst
<similar thus sniped>
Anyone with ideas, please comment.
I've so far found this:
http://lwn.net/Articles/150580/
Which seems to indicate that RAID + LVM + complex storage and
4KSTACKS can cause problems. However I can't find the 4KSTACK symbol
anywhere in my config.
Thanx,
Ramon
--
If to err is human, I'm most certainly human.
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