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Date:      Wed, 07 Jul 2010 16:17:42 -0400
From:      "Mikhail T." <mi+thun@aldan.algebra.com>
To:        Jeremy Chadwick <freebsd@jdc.parodius.com>
Cc:        re@freebsd.org, tom@hur.st, freebsd-stable@freebsd.org, freebsd-usb@freebsd.org
Subject:   Re: 8.x grudges
Message-ID:  <4C34E0E6.9070801@aldan.algebra.com>
In-Reply-To: <20100707185928.GA16180@icarus.home.lan>
References:  <4C34C5DE.7040007@aldan.algebra.com> <20100707185928.GA16180@icarus.home.lan>

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07.07.2010 14:59, Jeremy Chadwick ???????(??):
>>       FREEBSD_COMPAT7 kernel option is, apparently, a requirement (and
>>       thus not an "option") -- the kernel-config files, that worked with
>>       7.x, break without this option in them (in addition to all the
>>       nuisance, that's documented in UPDATING -- which, somehow, makes
>>       the breakage acceptable). config(8) would not warn about this, but
>>       kernel build fails.
>>      
> We don't use this option (meaning it's removed from our kernels).  It's
> definitely not required.  All it does is ensure your kernel can
> comprehend executables/binaries built on 7.x.
>    
Attached is the kernel config-file (i386), that worked fine under 7.x. 
The kernel-compile will break (some *freebsd7* structs undefined), 
without the COMPAT_FREEBSD7 option. Try it for yourself...
>>    3. Likewise, having "device ugen" breaks config(8) -- another
>>       undocumented incompatibility.
>>      
> This sounds like you not including all of the necessary USB/device
> framework in your kernel configuration.  You're not providing enough
> output for us to help diagnose the problem, though.
>    
Put "device ugen" back into the attached kernel-config file and see 
config's error yourself.
>>    4. The sio(4) is described in UPDATING as "removed", but rouses no
>>       complaint from config(8) either. It just breaks the kernel
>>       build... It should be an alias for uart, IMHO -- all I want is for
>>       my serial ports to be usable, whether their driver is called
>>       "Serial Input/Output" or "Universal Asynchronous Receiver and
>>       Transmitter".
>>      
> I disagree (re: "it should be an alias").  sio(4) is deprecated (meaning
> it's not used by default any more), and it's left in the driver tree
> solely as a fall-back method if someone runs into uart(4) problems.
If it were merely "deprecated" it would've still worked. It does not -- 
put "device sio" into the attached kernel-config and try building -- 
you'll get the compile-error. Whether deliberately or through bit-rot, 
uart /replaced/ sio...
> I'll take a moment to point out that your complaints about the kernel
> configuration file, so far, seem to stem from you not "migrating" your
> kernel configuration from 7.x to 8.x.  Things change -- that's the
> reality of the situation.
>
> The way I do this is, when upgrading major releases (7.x->8.x), to
> "start fresh" using GENERIC as my base template and then
> adding/adjusting while comparing against the older kernels' config.
> Others do it differently, this is just how I do it.
>    
Yes, your way is fine. But so is mine. It is perfectly reasonable to 
expect my method to work just as well -- the 7->8 is not revolutionary, 
but simply the next step. I read the "UPDATING" file and, though annoyed 
a little, took care of things mentioned in there... The remaining things 
are enumerated here...
>>       (BTW, about the /dev-entries -- do we /really/ have to change the
>>       names of the serial port-devices every couple of years? It is
>>       rather painful to reconfigure the fax- and ppp-software, etc.) How
>>       does the Microsoft world manage to stay with the COM1, COM2 for
>>       decades?)
>>      
> Like I said: things change.
>    
Well, pardon the political pun, but I don't believe in change for the 
sake of change. These particular changes are gratuitous. If sio is no 
longer available -- and replaced by uart, why change the /dev-entries?..
>>    5. One of the upgraded systems would repeatedly hang at boot, until I
>>       disabled the on-board firewire-device through the BIOS... It was
>>       not a problem under 7.x, although I don't know, whether the device
>>       actually worked.
>>      
> This is a commonly-reported problem, assuming "at boot" you mean "while
> the kernel is starting".  Or unless you're using a certain model of
> Shuttle box, but that turned out to be literally a BIOS bug:
>
> http://koitsu.wordpress.com/2009/05/22/shuttle-sg45h7-firewire-bug-in-bios-sg45u10o/
>    
No, this is not it /at all/. The link above describes a crash in the 
BIOS (and no POST), if firewire circuitry is disabled in BIOS. My 
problem is with FreeBSD kernel hanging on boot, if the firewire 
circuitry is enabled in BIOS. The boot was fine under 7.x, so this can 
not be due to a BIOS-bug -- the only thing, that changed, is the OS...
> This is also a commonly-reported problem (and one I've harped on as
> well).  When you say "during boot": does it work during loader (the
> screen with the "FreeBSD" logo on it)?
>    
Yes.
> If the keyboard works during loader but not once the kernel + kernel USB
> stack loads (e.g. when booting into single-user), then look at the very
> bottom of this page for a couple things to try:
>
> http://wiki.freebsd.org/BugBusting/Commonly_reported_issues
>    
Will do, thanks! Still, I was hoping, things will "just work" with 8.1...
> Regardless, this is one of the reasons I still have not made the move to
> USB keyboards and stick with PS/2 keyboards on FreeBSD.
>    
While renovating the house, I ran USB-, audio-, and video-cables through 
the walls from "server room" to the office, so I can sit in front of the 
monitors and keyboard/mouse, while the actual computers are well 
insulated behind closed door. PS/2 cables can't run the same length, it 
turns out...
>>    7. All my "dangerously dedicated" disks lost the "s1" in the
>>       subdevice-names after the upgrade: /dev/da1s1d became /dev/da1d,
>>       etc. I like the shorter names (and there are, indeed, no "slices"
>>       there), but having to fix them manually upon reboot was unpleasant
>>       and uncalled for. As with uart/sio, backward-compatibility aliases
>>       are a fine idea and really improves user's experience...
>>      
> Again: things change.
>    
Again: this particular change seems gratuitous.
> "Dangerously dedicated" disks are commonly deprecated at this point (as
> I understand it folks are trying to get away from them).  GEOM takes
> care of this situation better than it used to.
Yes, the "taking care" part is fine -- the filesystems all work. But the 
renaming is unwelcome.
> Re: aliases: see above.
>    
The only talk of aliases "above" was regarding sio/uart -- you said, sio 
is deprecated, but could exist alongside uart. That argument (however 
flawed it was, in my above-expressed opinion) does not apply here...
>>    8. I tried to do an install on one of the systems via netbooting
>>       (pxeload) the disk1-image. It booted, but the sysinstall had to beclaimed
>>       started manually and, once started, did not act the same as when
>>       booted off of CD-ROM. Seems like a simple bit to correct so that
>>       setting "init" to /usr/sbin/sysinstall/manually on every boot/ is
>>       not necessary...
>>      
> Can't reproduce:
> http://jdc.parodius.com/freebsd/pxeboot_serial_install.html
>    
Yes, you can -- you extract the CD-image there 
<http://jdc.parodius.com/freebsd/pxeboot_serial_install_8.html#step4>; 
(doubling the storage requirements), and then modify the loader.conf 
<http://jdc.parodius.com/freebsd/pxeboot_serial_install_8.html#step6>. 
That modification should not be necessary -- the thing ought to figure 
the situation out automatically. That it does not (not quite), was my 
complaint, although I was following a different recipe 
<http://www.freebsdwiki.net/index.php/Installing_FreeBSD_with_netboot>.
>
> Try loading the kernel module amdtemp and see if things improve.  Be
> sure to read the man page.
>    
Loading amdtemp was not necessary on the Opteron system, where the 
k8temp utility "just works" even after the upgrade. Doing it did not 
help the Athlon system, where k8temp continues to not work...

Yours,

    -mi


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 name="Quokka"
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 filename="Quokka"

#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.474.2.18 2009/06/18 06:03:58 yongari Exp $

#cpu		I486_CPU
#cpu		I586_CPU
cpu		I686_CPU
ident		Quokka

# To statically compile in device wiring instead of /boot/device.hints
#hints		"GENERIC.hints"		# Default places to look for devices.

makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols

options 	SCHED_ULE		# ULE scheduler
options 	PREEMPTION		# Enable kernel thread preemption
options 	INET			# InterNETworking
#options 	INET6			# IPv6 communications protocols
options 	SCTP			# Stream Control Transmission Protocol
options 	FFS			# Berkeley Fast Filesystem
options 	SOFTUPDATES		# Enable FFS soft updates support
options 	UFS_ACL			# Support for access control lists
options 	UFS_DIRHASH		# Improve performance on big directories
#options 	UFS_GJOURNAL		# Enable gjournal-based UFS journaling
#options 	MD_ROOT			# MD is a potential root device
options 	NFSCLIENT		# Network Filesystem Client
options 	NFSSERVER		# Network Filesystem Server
options 	NFSLOCKD		# Network Lock Manager
#options 	NFS_ROOT		# NFS usable as /, requires NFSCLIENT
options 	MSDOSFS			# MSDOS Filesystem
options 	CD9660			# ISO 9660 Filesystem
options 	PROCFS			# Process filesystem (requires PSEUDOFS)
options 	PSEUDOFS		# Pseudo-filesystem framework
#options 	GEOM_PART_GPT		# GUID Partition Tables.
#options 	GEOM_LABEL		# Provides labelization
options 	COMPAT_43TTY		# BSD 4.3 TTY compat [KEEP THIS!]
options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
options 	COMPAT_FREEBSD7		# Compatible with FreeBSD6
options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
options 	KTRACE			# ktrace(1) support
options 	STACK			# stack(9) support
options 	SYSVSHM			# SYSV-style shared memory
options 	SYSVMSG			# SYSV-style message queues
options 	SYSVSEM			# SYSV-style semaphores
options 	_KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
#options 	AUDIT			# Security event auditing
#options 	KDTRACE_HOOKS		# Kernel DTrace hooks

# To make an SMP kernel, the next two lines are needed
#options 	SMP			# Symmetric MultiProcessor Kernel
#device		apic			# I/O APIC

# CPU frequency control
device		cpufreq

# Bus support.
#device		eisa
device		pci

# Floppy drives
device		fdc

# ATA and ATAPI devices
device		ata
device		atadisk		# ATA disk drives
#device		ataraid		# ATA RAID drives
device		atapicd		# ATAPI CDROM drives
#device		atapifd		# ATAPI floppy drives
#device		atapist		# ATAPI tape drives
options 	ATA_STATIC_ID	# Static device numbering

# SCSI peripherals
device		scbus		# SCSI bus (required for SCSI)
device		da		# Direct Access (disks)
device		cd		# CD
device		pass		# Passthrough device (direct SCSI access)

# atkbdc0 controls both the keyboard and the PS/2 mouse
device		atkbdc		# AT keyboard controller
device		atkbd		# AT keyboard
device		psm		# PS/2 mouse

device		kbdmux		# keyboard multiplexer

device		vga		# VGA video card driver

device		splash		# Splash screen and screen saver support

# syscons is the default console driver, resembling an SCO console
device		sc

device		agp		# support several AGP chipsets

# Power management support (see NOTES for more options)
device		apm
# Add suspend/resume support for the i8254.
device          ipmi
device          smapi
device          smbios
device          pmtimer                 # Adjust system timer at wakeup time
device          smb
device          smbus
device          nfpm
device          nfsmb

# Serial (COM) ports
device		uart		# Generic UART driver

# Parallel port
device		ppc
device		ppbus		# Parallel port bus (required)
device		lpt		# Printer
#device		plip		# TCP/IP over parallel
#device		ppi		# Parallel port interface device
#device		vpo		# Requires scbus and da


# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device		miibus		# MII bus support
#device		nfe		# nVidia nForce MCP on-board Ethernet
device		nve		# nVidia nForce MCP on-board Ethernet
device		fxp

# Pseudo devices.
device		loop		# Network loopback
device		random		# Entropy device
device		ether		# Ethernet support
#device		sl		# Kernel SLIP
#device		ppp		# Kernel PPP
device		tun		# Packet tunnel.
device		pty		# Pseudo-ttys (telnet etc)
device		md		# Memory "disks"
#device		gif		# IPv6 and IPv4 tunneling
#device		faith		# IPv6-to-IPv4 relaying (translation)
device		firmware	# firmware assist module

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device		bpf		# Berkeley packet filter

# USB support
#device		uhci		# UHCI PCI->USB interface
device		ohci		# OHCI PCI->USB interface
device		ehci		# EHCI PCI->USB interface (USB 2.0)
device		usb		# USB Bus (required)
#device		udbp		# USB Double Bulk Pipe devices
device		uhid		# "Human Interface Devices"
device		ukbd		# Keyboard
device		ulpt		# Printer
device		umass		# Disks/Mass storage - Requires scbus and da
device		ums		# Mouse

# FireWire support
device		firewire	# FireWire bus code
device		sbp		# SCSI over FireWire (Requires scbus and da)
device		fwe		# Ethernet over FireWire (non-standard!)
device		fwip		# IP over FireWire (RFC 2734,3146)
device		dcons		# Dumb console driver
device		dcons_crom	# Configuration ROM for dcons

device	sound
device	snd_ich

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