From: cs162@po.EECS.Berkeley.EDU (Class Master) Subject: Answer to problems running assignment 5 Some people have been having problems running assignment 5. Unfortunately, the way the network gets initialized, if things don't get done in exactly the right order, you can get an error in sending the first packet to the socket. I have modified synch.h and synch.cc in code/, and re-compiled the contents of code/network. I was then able to run the test case successfully, at least one out of two times. See below. So, be careful out there! tom ----------- po.EECS.Berkeley.EDU:network>!19 ./nachos -m 0 -o 1 > & log & ; ./nachos -m 1 -o 0 > & log2 & [1] 10882 [2] 10883 po.EECS.Berkeley.EDU:network> [2] Illegal instruction ./nachos -m 1 -o 0 >& log2 (core dumped) [1] Illegal instruction ./nachos -m 0 -o 1 >& log (core dumped) po.EECS.Berkeley.EDU:network>rm -f log* SOCKET* po.EECS.Berkeley.EDU:network>!19 ./nachos -m 0 -o 1 > & log & ; ./nachos -m 1 -o 0 > & log2 & [1] 10895 [2] 10896 po.EECS.Berkeley.EDU:network> [1] Done ./nachos -m 0 -o 1 >& log [2] Done ./nachos -m 1 -o 0 >& log2 more log Got "Hello there!" from 1, box 1 Got "Got it!" from 1, box 1 Machine halting! Ticks: total 57080, idle 56810, system 270, user 0 Disk I/O: reads 2, writes 0 Console I/O: reads 0, writes 0 Paging: faults 0 Network I/O: packets received 2, sent 2 Cleaning up... po.EECS.Berkeley.EDU:network>more log2 Got "Hello there!" from 0, box 1 Got "Got it!" from 0, box 1 Machine halting! Ticks: total 58530, idle 58260, system 270, user 0 Disk I/O: reads 2, writes 0 Console I/O: reads 0, writes 0 Paging: faults 0 Network I/O: packets received 2, sent 2 Cleaning up...