OBSOLETE Patch-ID# 100783-01 Keywords: ptrace sparc PTRACE_READTEXT core panic Synopsis: OBSOLETED by 100496 Date: Jul/15/93 SunOS release: 4.1.1, 4.1.2, 4.1.3, 4.1.3C Unbundled Product: Unbundled Release: Topic: ptrace called with address = 3mod4 causes memory address BugId's fixed with this patch: 1077163 Architectures for which this patch is available: sun4, sun4c, sun4m Patches which may conflict with this patch: Obsoleted by: 100496 Files included with this patch: sys_process.o Problem Description: When using ptrace() system call with the PTRACE_READTEXT command, if the start address is mod 3 and a certain length, it is possible to panic with a memory fault. This probably will happen with PTRACE_WRITETEXT as well. Install Instructions: As root: mv /sys/`arch -k`/OBJ/sys_process.o /sys/`arch -k`/OBJ/sys_process.o_orig cp {4.1.1;4.1.2}/`arch -k`/sys_process.o /sys/`arch -k`/OBJ chmod 444 /sys/`arch -k`/OBJ/sys_process.o Then a new kernel will need to be made and installed. Please refer to the system and networking administration manual of creating and installing a custom kernel.