Patch-ID# 105378-01 Keywords: panic segvn_softunlock Synopsis: SunOS 4.1.3_U1: Kernel Fix for panic: segvn_softlock Date: Oct/20/97 Solaris Release: 1.1.1 SunOS Release: 4.1.3_U1 Unbundled Product: Unbundled Release: Relevant Architectures: sun4(all) BugId's fixed with this patch: 4062793 Changes incorporated in this version: Patches accumulated and obsoleted by this patch: Patches which conflict with this patch: Patches required with this patch: Obsoleted by: Files included with this patch: sun4/seg_vn.o sun4c/seg_vn.o sun4m/seg_vn.o Problem Description: 4062793 System crashes with "panic on cpu 0: segvn_softunlock" Patch Installation Instructions: 1) As root, save a copy of the original file: mv /usr/sys/`arch -k`/OBJ/seg_vn.o /usr/sys/`arch -k`/OBJ/seg_vn.o.fcs 2) Copy the new file from the patch directory: cp seg_vn.o /usr/sys/`arch -k`/OBJ chown root.staff /usr/sys/`arch -k`/OBJ/seg_vn.o chmod 444 /usr/sys/`arch -k`/OBJ/seg_vn.o 3) Build and install a new kernel. Reboot. Please refer to the System and Network Administration manual for details on building a custom kernel.