Date: Thu, 29 Jan 2004 13:37:52 -0700 From: Tom Ponsford <tponsford@theriver.com> To: Andrew Gallatin <gallatin@cs.duke.edu>, freebsd-alpha@FreeBSD.ORG, Wilko Bulte <wkb@freebie.xs4all.nl> Subject: AS2100A machine checks Message-ID: <40196F20.3000102@theriver.com>
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Hi All
OK I had some time the other night and I decided to build a debug kernel on a
alphastation 255 I had. I decided to use an external hard drive setup so I can
switch disks between the AS 2100A and the 255. I found this is easier to do
than netbooting the new kernel. I decided to build the kernel on a native
alpha machine (slower) rather than a cross-build on a faster x86 to eliminate
most stupid pilot errors. (although do expect some).
After building the debug kernel, I set the cpu_enabled environment to a single
CPU. I have a chart of the hexidecimal values attached for reference. I also
included the environmental values for the machine (show_env.txt)
I then attached the disk and booted off the external drive. (see boot.text)
As expected the as2100a panicked with a machine check. I attached the trace.
I'll have all week to play with this, before Ihave to put the alpha station
255 back on the vms cluster, although I can take it off again later.
One note: I noticed that there are several environmental variables for the pci
bus:
bus_probe_algorithm new | old # OLD: should be set on older VMS <V6.1 .
Failure to do so could result in bugcheck errors when booting form an EISA device
pci_arb Partial-Rotating #This variable has no information or reference
in the firmware handbook!
pci_parity ON | OFF
pci_read_multi ON | OFF # This variable has not been set in my machine! ON
enables a PCI bus read ahead. OFF diables a pci bus read ahead. (ROM default)
Cheers
Tom
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filename="boot.txt"
P00>>>boot dkb100
(boot dkb100.1.0.6.0)
block 0 of dkb100.1.0.6.0 is a valid boot block
reading 15 blocks from dkb100.1.0.6.0
bootstrap code read in
base = 200000, image_start = 0, image_bytes = 1e00
initializing HWRPB at 2000
initializing page table at 27ff0000
initializing machine state
setting affinity to the primary CPU
jumping to bootstrap code
Loading /boot/loader
Console: SRM firmware console
VMS PAL rev: 0x4000700010538
OSF PAL rev: 0x4000c0002012d
Switch to OSF PAL code succeeded.
FreeBSD/alpha SRM disk boot, Revision 1.2
(root@mithlond.btc.adaptec.com, Sat Jan 10 12:51:13 GMT 2004)
Memory: 655360 k
Loading /boot/defaults/loader.conf
/boot/kernel/kernel data=0x409cc0+0x43180 syms=[0x8+0x52bd8+0x8+0x418dd]
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...
Entering /boot/kernel/kernel at 0xfffffc000033fb80...
sio1: gdb debugging port
Copyright (c) 1992-2004 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 5.2-RELEASE #0: Thu Jan 29 18:51:04 MST 2004
root@tomzbox9.tomznet.lan:/usr/src/sys/alpha/compile/TOMZBOX9
Preloaded elf kernel "/boot/kernel/kernel" at 0xfffffc00007e4000.
DEC AlphaServer 2100A
AlphaServer 2100A 4/275, 274MHz
8192 byte page size, 1 processor.
CPU: EV45 (21064A) major=6 minor=2
OSF PAL rev: 0x4000c0002012d
real memory = 668917760 (637 MB)
avail memory = 643284992 (613 MB)
t20: using interrupt type 1 on pci bus 0
t20: <T2 Core Logic chipset>
pcib0: <T2 PCI host bus adapter> on t20
pci0: <PCI bus> on pcib0
eisab0: <PCI-EISA bridge> at device 2.0 on pci0
unexpected machine check:
mces = 0x1
vector = 0x670
param = 0xfffffc0000006000
pc = 0xfffffc000038b7f4
ra = 0xfffffc000038b828
curproc = 0xfffffc0000712728
pid = 0, comm = swapper
Stopped at eisa_probe+0x84: ldq t0,0(a0) <0xfffffc0000730e10> <t0=0x1,a0=0xfffffc0000730e10>
db>
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name="hex_digit_values.txt"
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filename="hex_digit_values.txt"
Hex digit values for CPU's
Hex Digit Value Binary Equiv Enabled Cpu's
0 0000 No Cpu's (Cpu 0 still
comes up)
1 0001 CPU 0
2 0010 CPU 1
3 0011 CPU 0,1
4 0011 CPU 2
5 0100 CPU 0,2
6 0110 CPU 1,2
7 0111 CPU 0,1,2
8 1000 CPU 3
9 1001 CPU 0,3
A 1010 CPU 1,3
B 1011 CPU 0,1,3
C 1100 CPU 2,3
D 1101 CPU 0,2,3
E 1110 CPU 1,2,3
F 1111 CPU 0,1,2,3
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name="kernel_debug_trace.txt"
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filename="kernel_debug_trace.txt"
b> tr
eisa_probe() at eisa_probe+0x84
device_probe_child() at device_probe_child+0x128
device_probe_and_attach() at device_probe_and_attach+0x54
bus_generic_attach() at bus_generic_attach+0x28
eisab_attach() at eisab_attach+0xcc
device_probe_and_attach() at device_probe_and_attach+0xbc
bus_generic_attach() at bus_generic_attach+0x28
pci_attach() at pci_attach+0xdc
device_probe_and_attach() at device_probe_and_attach+0xbc
bus_generic_attach() at bus_generic_attach+0x28
device_probe_and_attach() at device_probe_and_attach+0xbc
bus_generic_attach() at bus_generic_attach+0x28
t2_attach() at t2_attach+0x6c
device_probe_and_attach() at device_probe_and_attach+0xbc
root_bus_configure() at root_bus_configure+0x38
configure() at configure+0x40
mi_startup() at mi_startup+0x144
locorestart() at locorestart+0x64
--- root of call graph ---
db>
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Content-Type: text/plain;
name="show_env.txt"
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filename="show_env.txt"
P00>>>show
auto_action HALT
boot_dev dka0.0.0.2001.0
boot_file
boot_osflags
boot_reset ON
bootdef_dev dka0.0.0.2001.0
booted_dev
booted_file
booted_osflags
bus_probe_algorithm new
char_set 0
com1_baud 9600
com1_flow SOFTWARE
com1_modem OFF
com2_baud 9600
com2_flow SOFTWARE
com2_modem OFF
console serial
controlp ON
cpu_enabled 1
d_bell off
d_cleanup on
d_complete off
d_eop off
d_group field
d_harderr halt
d_loghard on
d_logsoft off
d_omit
d_oper on
d_passes 1
d_quick off
d_report full
d_runtime 0
d_softerr continue
d_startup off
d_status off
d_trace off
d_verbose 0
dump_dev
enable_audit ON
exdep_data 0
exdep_location 0
exdep_size 0
exdep_space pmem
exdep_type 3
full_powerup_diags ON
heap_expand NONE
i g
j u
kbd_hardware_type PCXAL
language 36
language_name English (American)
license MU
mopv3_boot 1
ocp_text FREEBSD
ocp_text_default Model 4/200
os_type UNIX
pal VMS PALcode V5.56-7, OSF PALcode V1.45-12
pci_arb Partial-Rotating
pci_parity ON
pka0_disconnect 1
pka0_fast 1
pka0_host_id 7
pkb0_disconnect 1
pkb0_fast 1
pkb0_host_id 7
rcm_answer
rcm_dialout
rcm_init
screen_mode OFF
scsi_poll ON
scsi_reset ON
scsnode
scssystemid 65534
scssystemidh 0
srm2dev
sys_serial_num NI727024JM
tga_sync_green 0
tt_allow_login 1
tty_dev 0
version V5.3-10 Oct 16 1998 14:06:58
P00>>>
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