Patch-ID# 100254-02 Keywords: panic, ttcompat, unexpected, ioctl, acknowledg Synopsis: SunOS 4.0.3, 4.1,4.1.1:panic: ttcompat: unexpected ioctl acknowledgment Date: 1-Apr-92 SunOS release: 4.0.3 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: 4.1.2 Problem Description: The user tried to enter sunview and the system crashed with : panic: ttcompat: unexpected ioctl acknowledgment INSTALL: As root: mv /sys/`arch -k`/OBJ/tty_ttcompat.o /sys/`arch -k`/OBJ/tty_ttcompat.o.FCS cp `arch -k`/{4.0.3,4.1,4.1.1}/tty_ttcompat.o /sys/`arch -k`/OBJ chmod 444 /sys/`arch -k`/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