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Hi All, |
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After bringing the NAS up mentioned here earlier on the list I'm |
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having an "interesting" problem with NFS on it. |
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We export the storage using nfs version 3. |
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Copies onto the local filesystem on the NAS run fine, copying over |
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the network with scp and the like works fine as well. |
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|
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However writing to an nfs-share from a different machine truncates |
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files at random sizes which appear to be multiples of 16K |
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|
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Following is output from a test-case: |
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|
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On the server in /etc/exports: |
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/data/tools 10.10.0.0/24(rw,async,no_root_squash) 127.0.0.1/8 |
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(rw,async,no_root_squash) |
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|
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Kernelsymbols: |
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Linux spinvis 2.6.14.2 #1 SMP Wed Feb 8 23:58:06 CET 2006 i686 Intel |
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(R) Xeon(TM) CPU 2.80GHz GenuineIntel GNU/Linux |
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|
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Similar behaviour is observed with gentoo-sources-2.6.14-r5, same |
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options. |
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|
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gzcat /proc/config.gz | grep NFS |
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|
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CONFIG_NFS_FS=y |
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CONFIG_NFS_V3=y |
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CONFIG_NFS_V3_ACL=y |
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# CONFIG_NFS_V4 is not set |
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# CONFIG_NFS_DIRECTIO is not set |
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CONFIG_NFSD=y |
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CONFIG_NFSD_V2_ACL=y |
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CONFIG_NFSD_V3=y |
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CONFIG_NFSD_V3_ACL=y |
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# CONFIG_NFSD_V4 is not set |
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CONFIG_NFSD_TCP=y |
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# CONFIG_ROOT_NFS is not set |
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CONFIG_NFS_ACL_SUPPORT=y |
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CONFIG_NFS_COMMON=y |
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|
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|
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#root@cl36 ~ 20:29:44 > mount |
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<partly snipped> |
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10.10.0.80:/data/tools on /root/tools type nfs |
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(rw,intr,lock,tcp,nfsvers=3,addr=10.10.0.80) |
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#root@cl36 ~ 20:29:56 > for i in `seq 1 30`; do dd count=1000 if=/dev/ |
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zero of=/root/tools/test.tst; ls -la /root/tools/test.tst ; rm /root/ |
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tools/test.tst ; done |
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1000+0 records in |
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1000+0 records out |
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dd: closing output file `/root/tools/test.tst': No space left on device |
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-rw-r--r-- 1 root root 163840 Feb 8 20:30 /root/tools/test.tst |
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1000+0 records in |
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1000+0 records out |
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dd: closing output file `/root/tools/test.tst': No space left on device |
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-rw-r--r-- 1 root root 98304 Feb 8 20:30 /root/tools/test.tst |
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1000+0 records in |
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1000+0 records out |
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dd: closing output file `/root/tools/test.tst': No space left on device |
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-rw-r--r-- 1 root root 98304 Feb 8 20:30 /root/tools/test.tst |
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1000+0 records in |
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1000+0 records out |
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dd: closing output file `/root/tools/test.tst': No space left on device |
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-rw-r--r-- 1 root root 131072 Feb 8 20:30 /root/tools/test.tst |
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1000+0 records in |
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1000+0 records out |
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dd: closing output file `/root/tools/test.tst': No space left on device |
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-rw-r--r-- 1 root root 163840 Feb 8 20:30 /root/tools/test.tst |
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<similar thus sniped> |
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|
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Anyone with ideas, please comment. |
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|
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I've so far found this: |
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http://lwn.net/Articles/150580/ |
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|
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Which seems to indicate that RAID + LVM + complex storage and |
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4KSTACKS can cause problems. However I can't find the 4KSTACK symbol |
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anywhere in my config. |
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|
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Thanx, |
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|
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Ramon |
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-- |
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If to err is human, I'm most certainly human. |
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-- |
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