Due I have also big problems with some machines I want to know if this new initrd image (with NFSOPTS) is already done by somebody? I'm quite new to linux, so I'm not able to make the changes you suggested.
Short Details of the problem: Clients: HP Vectra XU 90C with 3c905c NIC's Hangs at the pivot root if the network is plugged via switch, but it works if I connect the clients via Hub to the server. Exactly the same NIC's work in "newer" machines very well... ibert �������� Am Mittwoch, 22. Dezember 2004 21:19 schrieb Neil Wilson: > I have written up a FAQ for the NFS client mount problem that people are > getting with the latest 2.4 and 2.6 Linux kernels and included it within > the Wiki. I hope the list will find this useful. > > The problem can probably be classified as a bug with LTSP 4.1 in that it > doesn't specify the NFS packet size in its default mount statement. This > means it uses the kernel compiled default on whatever NFS server you are > using. On Linux this has just been increased from 8K to 32K. 32K is far too > large for older Ethernet cards and low-end switches and will cause overruns > on their Ethernet packet buffers. > > This manifest itself as a hang where NFS is constantly retransmitting a 32K > packet from server to client, only for parts of it to be lost somewhere > along the line due to a buffer overrun or IP fragmentation reassembly > problems. NFS is not adaptive so this cycle continues ad infinitum. > > I would strongly suggest that the option 'rsize=8192,wsize=8192' are > included in the default mount statement within LTSP and that a patch is > made accordingly. That should break the least number of clients. > > The other option is to use 'proto=tcp' and run NFS over TCP. TCP will then > handle the large packet issues for you. However I'm unsure as to how many > NFS servers out there will handle TCP effectively. > > I hope this is of use and helps other users avoid the frustrating few days > I've had sorting this out. > > Kind Regards > --- > Neil Wilson, Aldur Systems, UK > > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://productguide.itmanagersjournal.com/ > _____________________________________________________________________ > Ltsp-discuss mailing list. � To un-subscribe, or change prefs, goto: > � � � https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > For additional LTSP help, � try #ltsp channel on irc.freenode.net ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
