Re: Subtle NFS incompatibility with SunOS 4.1.1 on 68K

[Jason Thorpe <thorpej%me.com@localhost>]

> On Mar 17, 2020, at 3:59 PM, Chris Hanson <cmhanson%eschatologist.net@localhost> wrote:
> 
> Looks like the same issue, my system consistently passes -32 to write(4, ...) rather than -32768 but otherwise it's the same.

Yah, that's completely weird why it would be passing a negative number to write().  Almost like it got a bad value from stat() or something?

>> Can you get a tcpdump of the failure from the RPI?
> 
> I'll try! I'll have to figure out how, but I expect it should be straightforward, right?

On the RPI:

    sudo tcpdump -w nfs-fail.pcap port 2049

...ought to do it.  Run that command on the RPI, attempt the test case on the Sun, ^C the tcpdump on the RPI, and the .pcap file should have a packet capture that can be easily sliced and diced in Wireshark.

-- thorpej