Re: NFS problems with SL 5.1

[Felix Engel]

Hi Jan,


Am 18.06.2008 um 18:36 schrieb Jan Schulze:

(by factor ~4). Everything else seemed normal.


however shows a lot of lines like this one, when copying files:
  18:19:56.571906 IP bsnode02.0 > morphin.nfs: 1448 null


loss - how could I debug these issues further?

I did comparisons compiling gcc on the old and new systems while running tcpdump. I found, that the new systems performed a lot more NFS lookups File transfer to the NFS server is OK, no speed problems here. Tcpdump, Load on the NFS server is much higher than before. I'm a little bit at a

This is a bug in the kernel seemingly caused by a weird combination of patches in the RHEL kernel. See (in order):

http://bugs.centos.org/view.php?id=2635
https://bugzilla.redhat.com/show_bug.cgi?id=431092
https://bugzilla.redhat.com/show_bug.cgi?id=321111



Kind Regards,
        Felix

--
  Dipl.-Ing. Felix Engel        | mail: [EMAIL PROTECTED]
  fon: +49 241 80 27629         | fax: +49 241 80 28306
  RWTH Aachen University, SSS 611920, Templergraben 55, D-52056 Aachen

We have encountered the same problems and switching to kernel 2.6.18-53.1.13.el5.bz321111 as reported in the CentOS bug tracking solved the problem for us.

smime.p7s
Description: S/MIME cryptographic signature