Patch-ID# 100174-06
Keywords: tmpfs, crash, fail assertion, leaks, anonymous
Synopsis: SunOS 4.1.1: fixes for many tmpfs bugs.
Date: 10-Sep-91
 
SunOS release: 4.1.1
 
Unbundled Product: 
 
Unbundled Release:
 
Topic: 
 
BugId's fixed with this patch: 	1042350 1038651 1044192 1043270 1057963 1049027 1054054 1047586 1091294

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

Obsoleted by: SunOS 5.0

Problem Description:


These files contain bug fixes for the following bugs:

1038651: Using tmpfs ie ram /tmp can cause data initialization with
	 Fortran on SunOS 4.1.
1044192: hard link to a directory succeeds on tmpfs for non-root users
1042350: tmpfs problem with ftruncate test in SCTS from SUNVS.
1043270: tmpfs disallows mmap beyond end of file
1057963: cannot mount an exported tmpfs directory
1049027: tmpfs hangs and deadlocks
1047586: mkfifo does not work on tmpfs
1054054: +s and +t together do not work as expected
1091294: tmpfs "leaks" anonymous memory


INSTALL:

mv the new versions of tmp_vnodeops.o and tmp_tnode.o into /sys/($arch -k)/OBJ
after first saving the old versions aside as a precaution.

AS ROOT:

mv /sys/`arch -k`/OBJ/tmp_vnodeops.o /sys/`arch -k`/OBJ/tmp_vnodeops.o.FCS
mv /sys/`arch -k`/OBJ/tmp_tnode.o /sys/`arch -k`/OBJ/tmp_tnode.o.FCS
mv `arch -k`/tmp_vnodeops.o /sys/`arch -k`/OBJ/tmp_vnodeops.o
mv `arch -k`/tmp_tnode.o /sys/`arch -k`/OBJ/tmp_tnode.o

run /etc/config on your kernel and do a make. Install the newly configured 
vmunix and reboot. Refer to the Systems and Network administrations manual
on how to configure a kernel.