input forms. It has the following simple fields:
Text fields: Just titles, labels etc.
Input fields: An editable text field that may or may not have an
initial default value.
Labelled input field: This is an input field that has an initial
informative entry in it but it vanishes when you start editing the
field.
Toggle fields: These are fields with a pre-defined list of options
which you cycle through using the space bar.
Action fields: These are button type fields that call functions when
they are selected.
A simple demo is included in examples.
Wangtek PC-02 QIC-02 controller with Cipher 150MB tape drive
Any attemp to open /dev/rwt0 hangs.
The following patch to /sys/i386/isa/wt.c is derived from Mikael
Hybsch's wt driver.
Submitted by: Terry Lee <terry@uivlsi.csl.uiuc.edu>
perl setuid scripts don't work in 2.1-current for the same reason they were
not working in 1.1.5.1.
Perl 5 has the same "problem" of course.
We have almost POSIX saved uids but we must undefine the following symbols
in order to get setuid perl scripts :
Submitted by: roberto@blaise.ibp.fr (Ollivier Robert)
much higher filesystem I/O performance, and much better paging performance. It
represents the culmination of over 6 months of R&D.
The majority of the merged VM/cache work is by John Dyson.
The following highlights the most significant changes. Additionally, there are
(mostly minor) changes to the various filesystem modules (nfs, msdosfs, etc) to
support the new VM/buffer scheme.
vfs_bio.c:
Significant rewrite of most of vfs_bio to support the merged VM buffer cache
scheme. The scheme is almost fully compatible with the old filesystem
interface. Significant improvement in the number of opportunities for write
clustering.
vfs_cluster.c, vfs_subr.c
Upgrade and performance enhancements in vfs layer code to support merged
VM/buffer cache. Fixup of vfs_cluster to eliminate the bogus pagemove stuff.
vm_object.c:
Yet more improvements in the collapse code. Elimination of some windows that
can cause list corruption.
vm_pageout.c:
Fixed it, it really works better now. Somehow in 2.0, some "enhancements"
broke the code. This code has been reworked from the ground-up.
vm_fault.c, vm_page.c, pmap.c, vm_object.c
Support for small-block filesystems with merged VM/buffer cache scheme.
pmap.c vm_map.c
Dynamic kernel VM size, now we dont have to pre-allocate excessive numbers of
kernel PTs.
vm_glue.c
Much simpler and more effective swapping code. No more gratuitous swapping.
proc.h
Fixed the problem that the p_lock flag was not being cleared on a fork.
swap_pager.c, vnode_pager.c
Removal of old vfs_bio cruft to support the past pseudo-coherency. Now the
code doesn't need it anymore.
machdep.c
Changes to better support the parameter values for the merged VM/buffer cache
scheme.
machdep.c, kern_exec.c, vm_glue.c
Implemented a seperate submap for temporary exec string space and another one
to contain process upages. This eliminates all map fragmentation problems
that previously existed.
ffs_inode.c, ufs_inode.c, ufs_readwrite.c
Changes for merged VM/buffer cache. Add "bypass" support for sneaking in on
busy buffers.
Submitted by: John Dyson and David Greenman
my mailbox since early last year. Fixes a problem with running out of
fds (by hitting the limit or whatever) when ar is given a long list of
objects. The fix was to add a missing close().
Submitted by: Robert Crowe <bob@speakez.com>
Reenabled "SCIOCOMAND" ioctl.
Restructured so low level drivers can easily request retries.
Added preliminary fixed SCSI devices (should be revisited before 2.1)
Added "ssc" device that can have its' (HBA, ID, LUN) set via ioctl.
shifting. Also correct the original code as Garrett noticed it in mail.
Leave the mishandled code in to use it later if future versions of gcc
are correct. The code was part of the calibrate_cyclecounter routine to
get the speed of the pentium chip.
