Patch-ID# 100359-04
Keywords: panic assertion failure, machine freeze, console printf hangs, jumbo
Synopsis: SunOS 4.1;4.1.1;4.1.2: streams jumbo patch
Date: 6/January/92
 
SunOS release: 4.1 4.1.1 4.1.2
 
Topic: Streams Jumbo Patch
 
BugId's fixed with this patch: 1068158 1044100 1044888 1047355 1058097 1061174

Architectures for which this patch is available: Sun3 Sun3x Sun4 Sun4c Sun4m

Patches which may conflict with this patch: 100179 100233 100255 100279 100310 100359 100189

Obsoleted by:

This patch obsoletes patches: 100179 100233 100255 100279 100310 100359 100189

Problem Description:

2/6/92 This version of the patch contains the additional binaries 
for sun4m architecture.

Bugid 1068158
System crash with assertion failure vp->v_stream when using clone
driver.

Bugid 1044100
This patch incorporates the fix for bug id #1044100 which results
in a machine freeze.

Bugid 1044888
This patch also fixes a bug where kernel printf hangs the system.

Bugid 1047355
Polling not working correctly.

Bugid 1058097
System crash with panic data fault, with bad buffer pointer, usually
in the login process.

Bugid 1061174
'poll()' does not return -1 when 'poll()' receives a signal when polling
fds greater than 30.

Bugid 1058097 (11/11/91 100359-03)
The same system crash panic data fault can occur when the ioctl FIONREAD
is being processed.


INSTALL:

	As root, make a backup copy of the files to be patched:

        mv /sys/`arch -k`/OBJ/str_io.o /sys/`arch -k`/OBJ/str_io.o_orig
        mv /sys/`arch -k`/OBJ/str_syscalls.o /sys/`arch -k`/OBJ/str_syscalls.o_orig
	Now install the patched files:

        cp `arch -k`/str_io.o /sys/`arch -k`/OBJ
        cp `arch -k`/str_syscalls.o /sys/`arch -k`/OBJ
        chmod 444 /sys/`arch -k`/OBJ/str_io.o
        chmod 444 /sys/`arch -k`/OBJ/str_syscalls.o

Then a new kernel will need to be made

Please refer to the System and Network Administration manual
on building and installing a custom kernel.