Hi,

For a long time now, I've been plagued with locking up problems with 1.6.2 
on various Quadras. I thought it might be SCSI issues or perhaps issues 
stemming from compiling kernels with optimizations. But it seems that the 
problems appeared to go away, and the only correlated change was changing 
to a kernel compiled without optimizations. Uptime on my primary test 
machine was about 1/2 a year. The problem was that the system would lock 
up, quite often after issuing a "w" command, and then just not do anything 
except respond to ICMP.

Last night, I set up an IPv6 tunnel to a router machine on the same 
network as my 1/2 year uptime Quadra, the Quadra did an rtsol, and today, 
the machine locked up after a "w" command.

Ideas, anyone?

John