Subject: New NetBSD/alpha source snapshot & kernels available.
To: None <port-alpha@NetBSD.ORG>
From: Chris G Demetriou <Chris_G_Demetriou@BALVENIE.PDL.CS.CMU.EDU>
Date: 11/28/1995 20:08:04
There's a new NetBSD/alpha source snapshot, and some new kernels,
For an explanation of what's what, see:
This snapshot contains _only_:
(1) new kernels (i.e. netbsd.gz, netbsd.gdb.gz, netbsd_nfs.gz,
(2) new source tar files/diffs.
Because this snapshot doesn't include a complete install image and tar
files of the binaries, the previous distribution is still available
Hints and tips for using these sources:
(1) COMPILE YOUR KERNELS WITH COMPAT_10. If you do not,
you'll not be able to mount your file systems!!!
"stty opost" to fix it. This is a problem with the
machine-independent tty_compat.c code in NetBSD, and
hopefully it'll be fixed in the next NetBSD/alpha snapshot
These sources and kernels fix a couple of (very) serious bugs:
(1) "modified" and "referenced" bits weren't being kept for
pages. Not keeping reference bits would just cause
a minor performance lose. Lack of "modified" bits
could cause serious problems -- typically, once the
system started paging, applications would crash randomly.
Thanks to Jeff Hsu for pointing out and clearly
demonstrating the problem, and for providing a sample
fix that pointed me in the right direction.
(2) There was a problem with the FFS code that would cause
it to deterministically crash in certain situations.
(Basically: when 'fsck' would cause the root file system
to be reloaded, not all the fields of the superblock were
handled properly.) This couldn't cause data loss, but
was very annoying and confusing (at least to me)...
(1) AXPpci ("NoName") support, written by Jeff Hsu. With this
and bug #1 above fixed, he is apparently self-hosting
on his 16M AXPpci 33. (That machine type right, Jeff?)
(2) I've verified that the NFS server code works. (I dunno if
it didn't before, but i changed a couple of things in
my source tree and tried it, and it worked...)
(3) user-land and kernel profiling both work. (Note that
you'll have to update your /usr/src/lib from the NetBSD
master sources and recompile and install your libraries,
if you want to do user-land profiling...)
I'm going to be travelling until next friday or saturday (i.e. 12/9,
or something like that), so if you send me mail, don't expect to hear
back from me until i get back... I hope to do a complete snapshot not
too long after i return.