Patch-ID#  100254-01
Keywords: panic, ttcompat, unexpected, ioctl, acknowledg
Synopsis: SunOS 4.1,4.1.1:panic: ttcompat: unexpected ioctl acknowledgment
Date: 25-March-91
 
SunOS release: 4.1 4.1.1
 
Unbundled Product: 
 
Unbundled Release: 
 
Topic: 
 
BugId's fixed with this patch: 1044666 1028220

Architectures for which this patch is available: sun3, sun3x, sun4, sun4c

Patches which may conflict with this patch:

Obsoleted by: SYS_V Rel 4

Problem Description: 
The user tried to enter sunview and the system crashed with :

panic: ttcompat: unexpected ioctl acknowledgment



INSTALL: 

 as root:
  # mv /sys/sun{3,3x,4,4c}/OBJ/tty_ttcompat.o /sys/sun{3,3x,4,4c}/OBJ/tty_ttcompat.o.FCS
 # cp sun{3,3x,4,4c}/{4.1,4.1.1}/tty_ttcompat.o /sys/sun{3,3x,4,4c}/OBJ/
 # chmod 444  /sys/sun{3,3x,4,4c}/OBJ/tty_ttcompat.o


A new kernel will then need to be configured, built and installed
Please refer to the system and networking administration manual
for details on building and installing a custom kernel