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SubjectRe: KNFSD bug w/Solaris 2.6 & automounter..
Jonathan Corbet wrote:
>
> > kernel: RPC: bad TCP reclen 00000000<4>nfsd: terminating on error 5
>
> I'll answer this one, having asked it myself in the past...TCP NFSv2 mounts
> still don't work. However, it still seems to want to try. You need to
> explicitly mount with proto=udp on the Solaris side to avoid this problem.
>

uhm, big problem there. It was auto-mounted, using the
/net/machinename/exportname stuff; you don't get to mention any mount
options that way..

Which, means if 2.2 ships with this bug, it's a NFS DOS attack.

Why do I consider it a DOS attack? you can kill off nfsd's with this
bug, and the only way to recover is to reboot the machine...

> Now that Alan is hacking into NFSv3, maybe these problems will go away
> before 2.2. That is, shall we say, major good news. I worry a bit less
> now, but the possibility of 2.2 going out with another poor NFS
> implementation is still real, and it's not something we really want to have
> happen.

that would be nice.. is it both server and client, or just one? and if
one, which one?

--
------------------------+--------------------------------------------------
Thomas Davis | PDSF Project Leader
tadavis@lbl.gov |
(510) 486-4524 | "Only a petabyte of data this year?"

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