problems with nfs+TCP - Resource temporarily unavailable
Bernd Walter
ticso at cicely12.cicely.de
Thu May 26 01:58:24 PDT 2005
On Thu, May 26, 2005 at 01:03:25AM +0200, Oliver Lehmann wrote:
> ######
>
>
> I tried the same with an other nfs server (using dill as nfs server this
> time - system description is in my 1st mail, same mount options like /
> mnt/files). And guess what? dill rebooted immediate... dd came never
> back, gave no output
>
> dill's dmesg shows me:
>
> fatal kernel trap:
>
> trap entry = 0x4 (unaligned access fault)
> faulting va = 0xfffffc0006b6f44d
> opcode = 0x28
> register = 0x5
> pc = 0xfffffc0000541e08
> ra = 0xfffffc0000541df4
> sp = 0xfffffe000a0f9b70
> usp = 0x11ffea80
> curthread = 0xfffffc000f91ee10
> pid = 343, comm = nfsd
This is absolutely known - TCP/nfs has bugs in realigning packets.
Don't use TCP on strong aligned architectures.
--
B.Walter BWCT http://www.bwct.de
bernd at bwct.de info at bwct.de
More information about the freebsd-stable
mailing list