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Date:      Sat, 1 Dec 2001 23:30:21 +0700
From:      Eugene Grosbein <eugen@grosbein.pp.ru>
To:        stable@freebsd.org
Subject:   X and non-X graphics in 4.4-STABLE: system hangs.
Message-ID:  <20011201233021.A989@grosbein.pp.ru>

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Hi!

I have found a method to hang recent 4.4-STABLE and this is
100% reproducable with my hardware.

1. Have options VESA in the kernel config.
2. Load the system with splash screen enabled
   or
run VGL-enabled application like /usr/ports/games/digger-vgl then quit it.
3. Wait some time, 2-5 minutes.
3. Run XFree86-4.1.0 from ports.

Just before switching to graphics mode console hangs. It is in the text mode
but no keys are working - cannot switch vt's, cannot reboot with C-A-D,
cannot switch to DDB with C-A-ESC. I have no LAN here and cannot say if
this is dead kernel or just X or console. So I need to reset my system with
Power button.

Another way to reproduce this: do not use splash, start X then switch
to console. Run digger-vgl, quit, wait 5 minutes then try to switch to X.
System is frozen in the same way.

For reason unknown it does not hang when I switch to X immediately after
using console graphics, so I can boot with splash screen and xdm(1) enabled
in /etc/ttys. But if I switch from X to console, work there some time
and switch back, it always hangs.

I've found a workaround: before switching to X do at vty0:
vidconrol 80x30

Then it does not hang when switching to X.

My system is recent 4.4-STABLE, video is S3 Trio3D 4M AGP,
Iwill BD100Plus motherboard, Celeron 300A.
Results are exactly the same when I run it at 300Mhz or overclock at 450Mhz.
If I do not use console graphics, system runs rock stable.

Here is my dmesg.boot:

Copyright (c) 1992-2001 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD 4.4-STABLE #7: Sat Nov 24 11:15:46 KRAT 2001
    root@D00015.dialonly.kemerovo.su:/usr/obj/usr/src/sys/DADV
Timecounter "i8254"  frequency 1193165 Hz
CPU: Pentium II/Pentium II Xeon/Celeron (451.02-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x660  Stepping = 0
  Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
real memory  = 335478784 (327616K bytes)
config> q
avail memory = 322727936 (315164K bytes)
Preloaded elf kernel "kernel" at 0xc032f000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc032f09c.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc032f0ec.
VESA: v2.0, 4096k memory, flags:0x1, mode table:0xc00c0e38 (c0000e38)
VESA: S3 Incorporated Trio3D.
netsmb_dev: loaded
Pentium Pro MTRR support enabled
Using $PIR table, 8 entries at 0xc00fdef0
apm0: <APM BIOS> on motherboard
apm: found APM BIOS v1.2, connected at v1.2
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <S3 Trio3D graphics accelerator> at 0.0 irq 12
isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xf000-0xf00f at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 7.2
intpm0: <Intel 82371AB Power management controller> port 0x5000-0x500f irq 9 at device 7.3 on pci0
intpm0: I/O mapped 5000
intpm0: intr IRQ 9 enabled revision 0
smbus0: <System Management Bus> on intsmb0
smb0: <SMBus general purpose I/O> on smbus0
intpm0: PM I/O mapped 4000 
orm0: <Option ROM> at iomem 0xc0000-0xc7fff on isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> on isa0
sc0: VGA <24 virtual consoles, flags=0x200>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
pcm0: <Yamaha OPL-SAx> at port 0x220-0x22f,0x530-0x537,0x388-0x38f,0x330-0x331,0x370-0x371 irq 5 drq 0,1 on isa0
IPFW: MOD_LOAD
IP packet filtering initialized, divert disabled, rule-based forwarding disabled, default to deny, unlimited logging
DUMMYNET initialized (011031)
ad0: 6149MB <WDC AC26400B> [13328/15/63] at ata0-master UDMA33
acd0: CDROM <SAMSUNG CD-ROM SCR-3231> at ata0-slave using PIO4
acd1: CD-RW <SONY CD-RW CRX140E> at ata1-master using UDMA33
Mounting root from ufs:/dev/ad0s3a

Here is my kernel config:

options		INCLUDE_CONFIG_FILE

machine		i386
cpu		I686_CPU
ident		DADV
maxusers	128

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

#options 	MATH_EMULATE		#Support for x87 emulation
options		CLK_CALIBRATION_LOOP
options		"CLK_USE_I8254_CALIBRATION"
options		CLK_USE_TSC_CALIBRATION

options 	INET			#InterNETworking
#options 	INET6			#IPv6 communications protocols
options 	FFS			#Berkeley Fast Filesystem
options 	FFS_ROOT		#FFS usable as root device [keep this!]
#options 	MFS			#Memory Filesystem
#options 	MD_ROOT			#MD is a potential root device
#options 	NFS			#Network Filesystem
#options 	NFS_ROOT		#NFS usable as root device, NFS required
options 	MSDOSFS			#MSDOS Filesystem
#options 	CD9660			#ISO 9660 Filesystem
#options 	CD9660_ROOT		#CD-ROM usable as root, CD9660 required
options 	PROCFS			#Process filesystem
#options		EXT2FS			#Linux ext2 filesystem
options 	COMPAT_43		#Compatible with BSD 4.3 [KEEP THIS!]
options 	SCSI_DELAY=15000	#Delay (in ms) before probing SCSI
options 	UCONSOLE		#Allow users to grab the console
options 	USERCONFIG		#boot -c editor
options 	VISUAL_USERCONFIG	#visual boot -c editor
options 	KTRACE			#ktrace(1) support
options		CPU_SUSP_HLT
#options		"NO_F00F_HACK"
options		USER_LDT
options		PPP_BSDCOMP
options		PPP_DEFLATE
options		PPP_FILTER

options 	SYSVSHM			#SYSV-style shared memory
options 	SYSVMSG			#SYSV-style message queues
options 	SYSVSEM			#SYSV-style semaphores
options		SHMMAXPGS=4096

options 	P1003_1B		#Posix P1003_1B real-time extensions
options 	_KPOSIX_PRIORITY_SCHEDULING
options		_KPOSIX_VERSION=199309L
options		ICMP_BANDLIM		#Rate limit bad replies

#options		FDESC
options		NSWAPDEV=4

device		isa
device		eisa
device		pci
options		AUTO_EOI_1

# Floppy drives
device		fdc0	at isa? port IO_FD1 irq 6 drq 2
device		fd0	at fdc0 drive 0
#device		fd1	at fdc0 drive 1

# ATA and ATAPI devices
#device		ata0	at isa? port IO_WD1 irq 14 flags 0xb0ffb0ff
#device		ata1	at isa? port IO_WD2 irq 15 flags 0xb0ffb0ff
device		ata
device		atadisk			# ATA disk drives
device		atapicd			# ATAPI CDROM drives
#device		atapifd			# ATAPI floppy drives
#device		atapist			# ATAPI tape drives
options 	ATA_STATIC_ID		#Static device numbering

# atkbdc0 controls both the keyboard and the PS/2 mouse
device		atkbdc0	at isa? port IO_KBD
device		atkbd0	at atkbdc? irq 1

# Options for atkbd:
options 	ATKBD_DFLT_KEYMAP	# specify the built-in keymap
makeoptions	ATKBD_DFLT_KEYMAP="ru.koi8-r.pdwn"

device		psm0	at atkbdc? irq 12

device		vga0	at isa?
options		VESA
options		VGA_WIDTH90

# splash screen/screen saver
pseudo-device	splash

# syscons is the default console driver, resembling an SCO console
device		sc0	at isa?
options 	SC_DFLT_FONT		# compile font in
makeoptions	SC_DFLT_FONT=cp866

options		MAXCONS=24
options		SC_HISTORY_SIZE=1000
options		SC_MOUSE_CHAR=0x03
options		SC_TWOBUTTON_MOUSE
options		SC_PIXEL_MODE

# Floating point support - do not disable.
device		npx0	at nexus? port IO_NPX irq 13

# Power management support (see LINT for more options)
#device		apm0    at nexus? flags 0x31 # Advanced Power Management
device		apm0    at nexus?	     # Advanced Power Management

# Serial (COM) ports
device		sio0	at isa? port IO_COM1 flags 0x10 irq 4
device		sio1	at isa? port IO_COM2 irq 3

# Parallel port
device		ppc0	at isa? irq 7
device		ppbus		# Parallel port bus (required)
device		lpt		# Printer
#device		plip		# TCP/IP over parallel
device		ppi		# Parallel port interface device

#device		joy0	at isa? port IO_GAME

# Pseudo devices - the number indicates how many units to allocated.
pseudo-device	loop		# Network loopback
#pseudo-device	ether		# Ethernet support
#pseudo-device	sl	1	# Kernel SLIP
pseudo-device	ppp	2	# Kernel PPP
pseudo-device	tun		# Packet tunnel.
pseudo-device	pty	16	# Pseudo-ttys (telnet etc)
#pseudo-device	md		# Memory "disks"
#pseudo-device	gif	4	# IPv6 and IPv4 tunneling
#pseudo-device	faith	1	# IPv6-to-IPv4 relaying (translation)
pseudo-device	snp
pseudo-device	vn
pseudo-device	gzip		# Exec gzipped a.out's
pseudo-device	speaker

# The `bpf' pseudo-device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
pseudo-device	bpf		#Berkeley packet filter
options		MSGBUF_SIZE=40960

device pcm

options		QUOTA
options		IPFIREWALL
options		IPFIREWALL_VERBOSE
#options 	"IPFIREWALL_VERBOSE_LIMIT=100"
#options		IPDIVERT

options		DUMMYNET
options		SOFTUPDATES

#device		smbus0
#device		iicbus0
#device		iicbb0
#device		intpm0
#device		smb0	at smbus?

device		smbus
#device		iicbus
#device		iicbb
device		intpm
#device		alpm
#device		ichsmb
device		smb

#device		ic
#device		iic
#device		iicsmb

options		DDB

options		LIBMCHAIN
options		LIBICONV
options		NETSMB
options		NETSMBCRYPTO

options		RANDOM_IP_ID
options		SMBFS

options		UFS_DIRHASH
options		PQ_CACHESIZE=128	# color for 128k/16k cache

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