Okay I'm not sure how to run this. I recall reading somewhere in some pdf that you run acid against the proc id. So when it crashed the id was 1579 I can try doing this a different way. Please let me know but here are the results. Mail 1579: suicide: invalid address 0xc554d/816376 in sys call pc=0x149e4 Mail 1579: suicide: sys: bad address in syscall pc=0x000149e4 cpu% acid 1579 /proc/1579/text:386 plan 9 executable /sys/lib/acid/port /sys/lib/acid/386 acid: stk() pwrite()+0x7 /sys/src/libc/9syscall/pwrite.s:5 write(fd=0xffffffff,buf=0xc554d,n=0xc74f8)+0x2f /sys/src/libc/9sys/write.c:7 _iowrite(arg=0xbcdd4)+0x2f /sys/src/libthread/iowrite.c:16 xioproc(a=0x60000)+0x1dc /sys/src/libthread/ioproc.c:66 launcher386(arg=0x60000,f=0x16005)+0x10 /sys/src/libthread/386.c:10 0xfefefefe ?file?:0 acid: lstk() pwrite()+0x7 /sys/src/libc/9syscall/pwrite.s:5 write(fd=0xffffffff,buf=0xc554d,n=0xc74f8)+0x2f /sys/src/libc/9sys/write.c:7 _iowrite(arg=0xbcdd4)+0x2f /sys/src/libthread/iowrite.c:16 xioproc(a=0x60000)+0x1dc /sys/src/libthread/ioproc.c:66 c=0x60000 io=0x27c00 r=0xbcdd0 launcher386(arg=0x60000,f=0x16005)+0x10 /sys/src/libthread/386.c:10 0xfefefefe ?file?:0 acid: cpu%