Dom0: ACPI panic

[Christoph Egger <Christoph_Egger%gmx.de@localhost>]

Hi!

AcpiTbGetThisTable() calls acpi_md_OsMapMemory() with a
size value (= f000e816) that can't be right. I don't know where it comes
from. It leads to an "overflow" panic in x86_mem_add_mapping().

This is the output:

(The lines starting with "x86_mem_add_mapping: " comes from additional
debug printf's I added. Two lines belong to one call.)


(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009f000 (usable)
(XEN)  000000000009fc00 - 00000000000a0000 (reserved)
(XEN)  00000000000f0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 000000003fff0000 (usable)
(XEN)  000000003fff0000 - 000000003fff3000 (ACPI NVS)
(XEN)  000000003fff3000 - 0000000040000000 (ACPI data)
(XEN)  00000000fec00000 - 00000000fec01000 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000ffff0000 - 0000000100000000 (reserved)
(XEN) System RAM: 1023MB (1048124kB)
(XEN) ACPI: RSDP (v000 AMD-K8                                ) @ 0x000f7880
(XEN) ACPI: RSDT (v001 AMD-K8 AWRDACPI 0x42302e31 AMD  0x00000001) @ 
0x3fff3000
(XEN) ACPI: FADT (v001 AMD-K8 AWRDACPI 0x42302e31 AMD  0x00000001) @ 
0x3fff3040
(XEN) ACPI: SSDT (v001 AMD-K8 100Dummy 0x42302e31 AMD  0x00000001) @ 
0x3fff7500
(XEN) ACPI: MADT (v001 AMD-K8 AWRDACPI 0x42302e31 AMD  0x00000001) @ 
0x3fff7480
(XEN) ACPI: DSDT (v001 AMD-K8 AWRDACPI 0x00001000 MSFT 0x0100000c) @ 
0x00000000
(XEN) NUMA turned off
(XEN) Faking a node at 0000000000000000-000000003fff0000
(XEN) Xen heap: 9MB (10200kB)
(XEN) Domain heap initialised: DMA width 32 bits
(XEN) PAE disabled.
(XEN) found SMP MP-table at 000f5c80
(XEN) DMI not present.
(XEN) Using APIC driver default
(XEN) ACPI: PM-Timer IO Port: 0x5008
(XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[5004,0], pm1x_evt[5000,0]
(XEN) ACPI:                  wakeup_vec[3fff000c], vec_size[20]
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
(XEN) Processor #0 15:4 APIC version 16
(XEN) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
(XEN) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high dfl)
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
(XEN) ACPI: IRQ0 used by override.
(XEN) ACPI: IRQ2 used by override.
(XEN) ACPI: IRQ9 used by override.
(XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
(XEN) ACPI: HPET id: 0x102282a0 base: 0xf0000000
(XEN) Using ACPI (MADT) for SMP configuration information
[...]
Loaded initial symtab at 0xc09e31b8, strtab at 0xc0a4475c, # entries 23434
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 4.99.30 (XEN3_DOM0) #126: Thu Sep  6 10:09:03 UTC 2007
        root@tulln:/usr/src/sys/arch/i386/compile/XEN3_DOM0
total memory = 512 MB
avail memory = 490 MB
timecounter: Timecounters tick every 10.000 msec
BIOS32 rev. 0 found at 0xfb3f0
mainbus0 (root)
mainbus0: scanning 0x9fc00 to 0x9fff0 for MP signature
mainbus0: scanning 0x9f800 to 0x9fbf0 for MP signature
mainbus0: scanning 0xf0000 to 0xffff0 for MP signature
mainbus0: MP floating pointer found in bios at 0xf5c80
mainbus0: MP fps invalid: no default config and no configuration table
x86_mem_add_mapping: bpa 40e, size 2, bpa + size 410
x86_mem_add_mapping: pa 0, endpa 1000
x86_mem_add_mapping: bpa 9fc00, size 400, bpa + size a0000
x86_mem_add_mapping: pa 9f000, endpa a0000
x86_mem_add_mapping: bpa e0000, size 20000, bpa + size 100000
x86_mem_add_mapping: pa e0000, endpa 100000
x86_mem_add_mapping: bpa f7880, size 24, bpa + size f78a4
x86_mem_add_mapping: pa f7000, endpa f8000
x86_mem_add_mapping: bpa 3fff3000, size 24, bpa + size 3fff3024
x86_mem_add_mapping: pa 3fff3000, endpa 3fff4000
x86_mem_add_mapping: bpa 3fff3000, size f000e816, bpa + size 30001816
x86_mem_add_mapping: pa 3fff3000, endpa 30002000
panic: x86_mem_add_mapping: overflow
Stopped in pid 0.1 (system) at  netbsd:cpu_Debugger+0x4:        popl    %ebp
db> bt
cpu_Debugger(c08b470a,c0b2b934,c0b2b928,c047936b,d) at netbsd:cpu_Debugger+0x4
panic(c089ab97,c074d0f4,3fff3000,30002000,30001816) at netbsd:panic+0x155
x86_mem_add_mapping(3fff3000,f000e816,0,c0b2b9d8,c0b2b9d8) at 
netbsd:x86_mem_add_mapping+0x29a
acpi_md_OsMapMemory(3fff3000,0,f000e816,c0b2b9d8,c0688e95) at 
netbsd:acpi_md_OsMapMemory+0x2d
AcpiTbGetThisTable(c0b2ba58,c0b2ba18,24,c0b2ba18,9) at 
netbsd:AcpiTbGetThisTable+0xf6
AcpiTbGetTableBody(c0b2bad4,c0b2ba58,c0b2baac,c06a5dec,9) at 
netbsd:AcpiTbGetTableBody+0xb3
AcpiTbGetTable(c0b2bad4,c0b2baac,c0b2bae8,c06a2724,0) at 
netbsd:AcpiTbGetTable+0x49
AcpiTbGetTableRsdt(c0b2bb04,c0b2bb04,c0b2bb18,c06a6dc5,d) at 
netbsd:AcpiTbGetTableRsdt+0x26
AcpiLoadTables(c09e1de4,3,0,c1472f80,c1472f80) at netbsd:AcpiLoadTables+0x8b
acpi_probe(c1472f80,d,c0b2bb88,c04797dc,d) at netbsd:acpi_probe+0x68
mainbus_attach(0,c1472f80,0,c046bb5e,c08771d6) at netbsd:mainbus_attach+0x89
config_attach_loc(0,c091e740,0,0,0) at netbsd:config_attach_loc+0x156
config_attach(0,c091e740,0,0,c09d2120) at netbsd:config_attach+0x2c
config_rootfound(c08771d6,0,c0b2bc28,c046d3b3,c09a8164) at 
netbsd:config_rootfound+0x44
cpu_configure(c09a8164,2,0,c09d2120,b28000) at netbsd:cpu_configure+0x26
configure(c096daa0,2,0,c0b2bc4c,c051a619) at netbsd:configure+0x33
main(c01001df,c01001e7,0,0,0) at netbsd:main+0x16f
db>