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port-xen/47499: recent amd64 DOM0 kernel hangs at boot
>Number: 47499
>Category: port-xen
>Synopsis: recent amd64 DOM0 kernel hangs at boot
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: port-xen-maintainer
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Thu Jan 24 11:10:06 +0000 2013
>Originator: Takahiro HAYASHI
>Release: NetBSD HEAD (201301151650Z from nyftp)
>Organization:
>Environment:
System: NetBSD 6.99.16 NetBSD 6.99.16 (XEN3_DOM0) #0: Tue Jan 15 19:11:00 UTC
2013
builds%b6.netbsd.org@localhost:/home/builds/ab/HEAD/amd64/201301151650Z-obj/home/builds/ab/HEAD/src/sys/arch/amd64/compile/XEN3_DOM
amd64
Architecture: x86_64
Machine: amd64
Xen-version: pkgsrc/sysutils/xenkernel41 4.1.3-nb2
>Description:
Recent (after 2012.09.23) amd64 DOM0 kernel hangs up at boot.
The kernel boots normally till registering timecounter (as I
boot with -v) but stops there 60 to 120 sec. Then probes
atapibus and hangs up finally.
This happens every time I boot dom0 on Xen.
This happens on recent (after 2012.11.23) netbsd-6 amd64 dom0 kernel
too.
Curiously I saw this problem only on the PCs that have AMD cpu.
One pc has Athlon 4850e on RS780UVD-AM2+(128) and another has E-350
on GA-E350N-USB3, but I cannot reproduce this problem on intel cpu
(tested on celeron E3200 on GA-EG31MF-S2 and Atom on G945GCLF).
This problem can be hidden by reverting the commit
http://mail-index.netbsd.org/source-changes/2012/09/23/msg037435.html
Here is the console log:
(only 4850e board, E-350 board has no serial ports.)
>> NetBSD/x86 BIOS Boot, Revision 5.9 (from NetBSD 6.0_STABLE)
>> Memory: 639/2095808 k
1. Boot NetBSD/i386
2. Boot NetBSD/i386 with -s
3. Boot NetBSD/amd64
4. Boot NetBSD/amd64 with -s
5. Xen4.1.3 -v
6. Drop to boot prompt
Choose an option; RETURN for default; SPACE to stop countdown.
Option 1 will be chosen in 0 seconds.
1449000+312280=0x1ae0c0
Loading /netbsd.xen
__ __ _ _ _ _____
\ \/ /___ _ __ | || | / | |___ /
\ // _ \ '_ \ | || |_ | | |_ \
/ \ __/ | | | |__ _|| |_ ___) |
/_/\_\___|_| |_| |_|(_)_(_)____/
(XEN) Xen version 4.1.3 (root@) (gcc version 4.5.3 (NetBSD nb2 20110806) ) Sun
Dec 16 15:54:46 JST 2012
(XEN) Latest ChangeSet: unavailable
(XEN) Bootloader: unknown
(XEN) Command line: dom0_mem=256M console=com1 com1=115200,8n1
(XEN) Video information:
(XEN) VGA is text mode 80x25, font 8x16
(XEN) VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) EDID info not retrieved because of reasons unknown
(XEN) Disc information:
(XEN) Found 1 MBR signatures
(XEN) Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009fc00 (usable)
(XEN) 000000000009fc00 - 00000000000a0000 (reserved)
(XEN) 00000000000e6000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 000000007ffb0000 (usable)
(XEN) 000000007ffb0000 - 000000007ffbe000 (ACPI data)
(XEN) 000000007ffbe000 - 000000007ffe0000 (ACPI NVS)
(XEN) 000000007ffe0000 - 0000000080000000 (reserved)
(XEN) 00000000ff700000 - 0000000100000000 (reserved)
(XEN) System RAM: 2047MB (2096444kB)
(XEN) ACPI: RSDP 000FAF00, 0014 (r0 ACPIAM)
(XEN) ACPI: RSDT 7FFB0000, 0040 (r1 062310 RSDT1051 20100623 MSFT 97)
(XEN) ACPI: FACP 7FFB0200, 0084 (r1 062310 FACP1051 20100623 MSFT 97)
(XEN) ACPI Warning (tbfadt-0444): Optional field "Pm2ControlBlock" has zero
address or length: 0000000000000000/1 [20070126]
(XEN) ACPI: DSDT 7FFB0450, 931F (r1 RS78D RS78D40B 40B INTL 20051117)
(XEN) ACPI: FACS 7FFBE000, 0040
(XEN) ACPI: APIC 7FFB0390, 007C (r1 062310 APIC1051 20100623 MSFT 97)
(XEN) ACPI: MCFG 7FFB0410, 003C (r1 062310 OEMMCFG 20100623 MSFT 97)
(XEN) ACPI: OEMB 7FFBE040, 0072 (r1 062310 OEMB1051 20100623 MSFT 97)
(XEN) ACPI: SRAT 7FFB9770, 00A0 (r3 AMD FAM_F_10 2 AMD 1)
(XEN) ACPI: HPET 7FFB9810, 0038 (r1 062310 OEMHPET 20100623 MSFT 97)
(XEN) ACPI: SSDT 7FFB9850, 028A (r1 A M I POWERNOW 1 AMD 1)
(XEN) Domain heap initialised
(XEN) Processor #0 15:11 APIC version 16
(XEN) Processor #1 15:11 APIC version 16
(XEN) IOAPIC[0]: apic_id 2, version 33, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode: Flat. Using 1 I/O APICs
(XEN) Table is not found!
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2500.216 MHz processor.
(XEN) Initing memory sharing.
(XEN) AMD-Vi: IOMMU not found!
(XEN) I/O virtualisation disabled
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using new ACK method
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 16 KiB.
(XEN) HVM: ASIDs enabled.
(XEN) SVM: Supported advanced features:
(XEN) - Last Branch Record (LBR) Virtualisation
(XEN) HVM: SVM enabled
(XEN) AMD: Disabling C1 Clock Ramping Node #0
(XEN) Brought up 2 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 64-bit, lsb, compat32
(XEN) Dom0 kernel: 64-bit, lsb, paddr 0xffffffff80000000 -> 0xffffffff80e56000
(XEN) Dom0 symbol map 0xffffffff80e56000 -> 0xffffffff80f75bd0
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 000000007a000000->000000007c000000 (57344 pages to be
allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: ffffffff80000000->ffffffff80f75bd0
(XEN) Init. ramdisk: ffffffff80f76000->ffffffff80f76000
(XEN) Phys-Mach map: ffffffff80f76000->ffffffff80ff6000
(XEN) Start info: ffffffff80ff6000->ffffffff80ff64b4
(XEN) Page tables: ffffffff80ff7000->ffffffff81004000
(XEN) Boot stack: ffffffff81004000->ffffffff81005000
(XEN) TOTAL: ffffffff80000000->ffffffff81400000
(XEN) ENTRY ADDRESS: ffffffff80100000
(XEN) Dom0 has maximum 2 VCPUs
(XEN) Scrubbing Free RAM: .................done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to
Xen)
(XEN) Freed 212kB init memory.
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
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 6.99.16 (XEN3_DOM0) #0: Tue Jan 15 19:11:00 UTC 2013
builds%b6.netbsd.org@localhost:/home/builds/ab/HEAD/amd64/201301151650Z-obj/home/builds/ab/HEAD/src/sys/arch/amd64/compile/XEN3_DOM0
total memory = 256 MB
avail memory = 232 MB
timecounter: Timecounters tick every 10.000 msec
mainbus0 (root)
ACPI Warning: Optional field Pm2ControlBlock has zero address or length:
0x0000000000000000/0x1 (20110623/tbfadt-586)
cpu0 at mainbus0 apid 0
cpu1 at mainbus0 apid 1
ioapic0 at mainbus0 apid 2: pa 0xfec00000, version 21, 24 pins
(XEN) ioapic_guest_write: apic=0, pin=0, irq=0
(XEN) ioapic_guest_write: new_entry=000109f0
(XEN) ioapic_guest_write: old_entry=00010000 pirq=0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=2, irq=0
(XEN) ioapic_guest_write: new_entry=000109f0
(XEN) ioapic_guest_write: old_entry=000009f0 pirq=0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) irq.c:1624: dom0: pirq 0 or irq 3 already mapped
(XEN) ioapic_guest_write: apic=0, pin=4, irq=4
(XEN) ioapic_guest_write: new_entry=000109f1
(XEN) ioapic_guest_write: old_entry=000009f1 pirq=0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) irq.c:1624: dom0: pirq 0 or irq 5 already mapped
(XEN) irq.c:1624: dom0: pirq 0 or irq 6 already mapped
(XEN) irq.c:1624: dom0: pirq 0 or irq 7 already mapped
(XEN) irq.c:1624: dom0: pirq 0 or irq 8 already mapped
(XEN) irq.c:1624: dom0: pirq 0 or irq 9 already mapped
(XEN) irq.c:1624: dom0: pirq 0 or irq 10 already mapped
(XEN) irq.c:1624: dom0: pirq 0 or irq 11 already mapped
(XEN) irq.c:1624: dom0: pirq 0 or irq 12 already mapped
(XEN) irq.c:1624: dom0: pirq 0 or irq 13 already mapped
hypervisor0 at mainbus0: Xen version 4.1.3
VIRQ_DEBUG interrupt using event channel 1
vcpu0 at hypervisor0: AMD Athlon(tm) Dual Core Processor 4850e, id 0x60fb2
xenbus0 at hypervisor0: Xen Virtual Bus Interface
xencons0 at hypervisor0: Xen Virtual Console Driver
xencons0: console major 143, unit 0
xencons0: using event channel 2
acpi0 at hypervisor0: Intel ACPICA 20110623
acpi0: X/RSDT: OemId <062310,RSDT1051,20100623>, AslId <MSFT,00000097>
ioapic0 reenabling
(XEN) ioapic_guest_write: apic=0, pin=0, irq=0
(XEN) ioapic_guest_write: new_entry=000109f0
(XEN) ioapic_guest_write: old_entry=00010000 pirq=0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=2, irq=0
(XEN) ioapic_guest_write: new_entry=000109f0
(XEN) ioapic_guest_write: old_entry=000009f0 pirq=0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=4, irq=4
(XEN) ioapic_guest_write: new_entry=000109f1
(XEN) ioapic_guest_write: old_entry=000009f1 pirq=0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=9, irq=9
(XEN) ioapic_guest_write: new_entry=0000a958
(XEN) ioapic_guest_write: old_entry=0000d958 pirq=200
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
acpi0: SCI interrupting at int 9
timecounter: Timecounter "ACPI-Safe" frequency 3579545 Hz quality 900
BROD (PNP0C02) at acpi0 not configured
TMR (PNP0100) at acpi0 not configured
pcppi0 at acpi0 (SPKR, PNP0800): io 0x61
UAR1 (PNP0501) at acpi0 not configured
HPET (PNP0103) at acpi0 not configured
OMSC (PNP0C02) at acpi0 not configured
RMSC (PNP0C02) at acpi0 not configured
SIOR (PNP0C02) at acpi0 not configured
PCIE (PNP0C02) at acpi0 not configured
RMEM (PNP0C01) at acpi0 not configured
acpibut0 at acpi0 (PWRB, PNP0C0C-170): ACPI Power Button
AOD (PNP0C14) at acpi0 not configured
pci0 at hypervisor0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled
pchb0 at pci0 dev 0 function 0: vendor 0x1022 product 0x9600 (rev. 0x00)
ppb0 at pci0 dev 1 function 0: vendor 0x1022 product 0x9602 (rev. 0x00)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga0 at pci1 dev 5 function 0: vendor 0x1002 product 0x9610 (rev. 0x00)
wsdisplay0 at vga0 kbdmux 1
wsmux1: connecting to wsdisplay0
drm at vga0 not configured
ppb1 at pci0 dev 2 function 0: vendor 0x1022 product 0x9603 (rev. 0x00)
ppb1: PCI Express 2.0 <Root Port of PCI-E Root Complex> x16 @ 5.0Gb/s
> x1 @ 5.0Gb/s
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled
vendor 0x1b6f product 0x7023 (USB serial bus, interface 0x30, revision 0x01) at
pci2 dev 0 function 0 not configured
ppb2 at pci0 dev 4 function 0: vendor 0x1022 product 0x9604 (rev. 0x00)
ppb2: PCI Express 2.0 <Root Port of PCI-E Root Complex> x1 @ 5.0Gb/s
> x1 @ 2.5Gb/s
pci3 at ppb2 bus 3
pci3: i/o space, memory space enabled
mskc0 at pci3 dev 0 function 0, Yukon-2 EC Ultra (0x5): ioapic0 pin 16, event
channel 4
msk0 at mskc0 port A: Ethernet address 00:e0:61:xx:xx:xx
ukphy0 at msk0 phy 0: OUI 0x000ac2, model 0x000b, rev. 1
ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT,
1000baseT-FDX, auto
ixpide0 at pci0 dev 17 function 0: ATI Technologies IXP IDE Controller (rev.
0x00)
ixpide0: bus-master DMA support present
ixpide0: primary channel configured to native-PCI mode
ixpide0: using ioapic0 pin 22, event channel 5 for native-PCI interrupt
atabus0 at ixpide0 channel 0
ixpide0: secondary channel configured to native-PCI mode
atabus1 at ixpide0 channel 1
ohci0 at pci0 dev 18 function 0: vendor 0x1002 product 0x4397 (rev. 0x00)
ohci0: interrupting at ioapic0 pin 16, event channel 4
ohci0: OHCI version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
ohci1 at pci0 dev 18 function 1: vendor 0x1002 product 0x4398 (rev. 0x00)
ohci1: interrupting at ioapic0 pin 16, event channel 4
ohci1: OHCI version 1.0, legacy support
usb1 at ohci1: USB revision 1.0
ehci0 at pci0 dev 18 function 2: vendor 0x1002 product 0x4396 (rev. 0x00)
ehci0: applying AMD SB600/SB700 USB freeze workaround
ehci0: interrupting at ioapic0 pin 17, event channel 6
ehci0: dropped intr workaround enabled
ehci0: EHCI version 1.0
ehci0: companion controllers, 3 ports each: ohci0 ohci1
usb2 at ehci0: USB revision 2.0
ohci2 at pci0 dev 19 function 0: vendor 0x1002 product 0x4397 (rev. 0x00)
ohci2: interrupting at ioapic0 pin 18, event channel 7
ohci2: OHCI version 1.0, legacy support
usb3 at ohci2: USB revision 1.0
ohci3 at pci0 dev 19 function 1: vendor 0x1002 product 0x4398 (rev. 0x00)
ohci3: interrupting at ioapic0 pin 18, event channel 7
ohci3: OHCI version 1.0, legacy support
usb4 at ohci3: USB revision 1.0
ehci1 at pci0 dev 19 function 2: vendor 0x1002 product 0x4396 (rev. 0x00)
ehci1: applying AMD SB600/SB700 USB freeze workaround
ehci1: interrupting at ioapic0 pin 19, event channel 8
ehci1: dropped intr workaround enabled
ehci1: EHCI version 1.0
ehci1: companion controllers, 3 ports each: ohci2 ohci3
usb5 at ehci1: USB revision 2.0
vendor 0x1002 product 0x4385 (SMBus serial bus, revision 0x3a) at pci0 dev 20
function 0 not configured
ixpide1 at pci0 dev 20 function 1: ATI Technologies IXP IDE Controller (rev.
0x00)
ixpide1: bus-master DMA support present
ixpide1: primary channel configured to compatibility mode
ixpide1: primary channel interrupting at ioapic0 pin 14, event channel 9
atabus2 at ixpide1 channel 0
ixpide1: secondary channel configured to compatibility mode
ixpide1: secondary channel interrupting at ioapic0 pin 15, event channel 10
atabus3 at ixpide1 channel 1
hdaudio0 at pci0 dev 20 function 2: HD Audio Controller
hdaudio0: interrupting at ioapic0 pin 16, event channel 4
hdafg0 at hdaudio0: Realtek ALC888
hdafg0: DAC00 8ch: Speaker [Jack]
hdafg0: DAC01 2ch: HP Out [Jack]
hdafg0: DIG02 2ch: SPDIF Out [Jack]
hdafg0: ADC03 2ch: Line In [Jack], Mic In [Jack]
hdafg0: ADC04 2ch: Mic In [Jack]
hdafg0: DIG-In05 2ch: SPDIF In [Jack]
hdafg0: 8ch/2ch 44100Hz 48000Hz 96000Hz 192000Hz PCM16 PCM20 PCM24 AC3
audio0 at hdafg0: full duplex, playback, capture, independent
pcib0 at pci0 dev 20 function 3: vendor 0x1002 product 0x439d (rev. 0x00)
ppb3 at pci0 dev 20 function 4: vendor 0x1002 product 0x4384 (rev. 0x00)
pci4 at ppb3 bus 4
pci4: i/o space, memory space enabled
ppb4 at pci4 dev 6 function 0: vendor 0x12d8 product 0xe111 (rev. 0x02)
ppb4: PCI Express 1.0 <PCI/PCI-X to PCI-E Bridge> x1 @ 2.5Gb/s
pci5 at ppb4 bus 5
pci5: i/o space, memory space enabled
vendor 0x1033 product 0x0194 (USB serial bus, interface 0x30, revision 0x04) at
pci5 dev 0 function 0 not configured
ohci4 at pci0 dev 20 function 5: vendor 0x1002 product 0x4399 (rev. 0x00)
ohci4: interrupting at ioapic0 pin 18, event channel 7
ohci4: OHCI version 1.0, legacy support
usb6 at ohci4: USB revision 1.0
pchb1 at pci0 dev 24 function 0: vendor 0x1022 product 0x1100 (rev. 0x00)
pchb2 at pci0 dev 24 function 1: vendor 0x1022 product 0x1101 (rev. 0x00)
pchb3 at pci0 dev 24 function 2: vendor 0x1022 product 0x1102 (rev. 0x00)
amdnb_misc0 at pci0 dev 24 function 3: AMD NB Misc Configuration
amdtemp0 at amdnb_misc0: AMD CPU Temperature Sensors (K8: core rev BH-G2,
socket AM2)
isa0 at pcib0
pckbc0 at isa0 port 0x60-0x64
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
timecounter: Timecounter "xen_system_time" frequency 1000000000 Hz quality 10000
Xen clock: using event channel 11
xenbus0: using event channel 12
atapibus0 at atabus3: 2 targets
(here I type '+' 5 times then enter ddb)
fatal breakpoint trap in supervisor mode
trap type 1 code 0 rip ffffffff8020de05 cs e030 rflags 202 cr2 0 ilevel 6 rsp
ffffffff8100fc10
curlwp 0xffffffff80c8a0c0 pid 0.1 lowest kstack 0xffffffff81008280
Stopped in pid 0.1 (system) at netbsd:breakpoint+0x5: leave
breakpoint() at netbsd:breakpoint+0x5
xencons_tty_input() at netbsd:xencons_tty_input+0xc9
xencons_intr() at netbsd:xencons_intr+0x56
evtchn_do_event() at netbsd:evtchn_do_event+0x264
do_hypervisor_callback() at netbsd:do_hypervisor_callback+0x173
hypervisor_callback() at netbsd:hypervisor_callback+0x9e
ds 5ed9
es b6f8
fs fbf0
gs fd98
rdi 1
rsi ffffffff80e40b20 rbuf.11854
rbp ffffffff8100fc10
rbx ffffffff80e40b20 rbuf.11854
rdx 2b
rcx 2b
rax 7f
r8 0
r9 0
r10 ffffffff8100fc10
r11 e033
r12 ffffa00000861108
r13 ffffffff80e40b20 rbuf.11854
r14 ffffa000008d3980
r15 1
rip ffffffff8020de05 breakpoint+0x5
cs e030
rflags 202
rsp ffffffff8100fc10
ss e02b
netbsd:breakpoint+0x5: leave
db> ps/l
PID LID S CPU FLAGS STRUCT LWP * NAME WAIT
0 38 2 0 200 ffffa00000a99580 unpgc
0 37 3 0 200 ffffa00000a999a0 vmem_rehash vmem_rehash
0 36 3 0 200 ffffa000008d28e0 atapibus0 sccomp
0 35 2 0 200 ffffa00000a06120 ixpide1cnf
0 34 2 0 200 ffffa00000a07140 xenbus
0 33 3 0 200 ffffa00000a07560 xenwatch evtsq
0 32 3 0 200 ffffa00000a07980 amdtemp0 amdtemp0
0 30 3 0 200 ffffa00000a06540 configintr usbdly
0 29 3 0 200 ffffa00000a06960 configintr usbdly
0 28 3 0 200 ffffa00000a05100 configintr usbdly
0 27 3 0 200 ffffa00000a05520 configintr usbdly
0 26 3 0 200 ffffa00000a05940 configintr usbdly
0 25 3 0 200 ffffa000009ed0e0 configintr usbdly
0 24 3 0 200 ffffa000009ed500 configintr usbdly
0 23 3 0 200 ffffa000009ed920 atabus3 atath
0 22 3 0 200 ffffa000009a70c0 atabus2 atath
0 21 3 0 200 ffffa000009a74e0 usbtask-dr usbtsk
0 20 3 0 200 ffffa000009a7900 usbtask-hc usbtsk
0 19 3 0 200 ffffa000008d20a0 atabus1 atath
0 18 3 0 200 ffffa000008d24c0 atabus0 atath
0 16 3 0 200 ffffa0000085b080 sysmon smtaskq
0 15 3 0 200 ffffa0000085b4a0 pmfsuspend pmfsuspend
0 14 3 0 200 ffffa0000085b8c0 pmfevent pmfevent
0 13 3 0 200 ffffa00000788060 sopendfree sopendfr
0 12 3 0 200 ffffa00000788480 nfssilly nfssilly
0 11 3 0 200 ffffa000007888a0 cachegc cachegc
0 10 3 0 200 ffffa00000787040 vrele vrele
0 9 3 0 200 ffffa00000787460 vdrain vdrain
0 8 3 0 200 ffffa00000787880 modunload mod_unld
0 7 3 0 200 ffffa0000077e020 xcall/0 xcall
0 6 1 0 200 ffffa0000077e440 softser/0
0 5 1 0 200 ffffa0000077e860 softclk/0
0 4 1 0 200 ffffa0000077b000 softbio/0
0 3 1 0 200 ffffa0000077b420 softnet/0
0 2 1 0 201 ffffa0000077b840 idle/0
0 > 1 7 0 200 ffffffff80c8a0c0 swapper
>How-To-Repeat:
1) Prepare the PC that has AMD cpu.
2) Put amd64 dom0 kernel, xen kernel and /boot on / partition.
3) type "load /netbsd.xen -v console=com0" and
"multiboot /xen.gz dom0_mem=256M console=com1 com1=115200,8n1"
(these are netbsd boot loader commands)
>Fix:
Not known.
Reverting
http://mail-index.netbsd.org/source-changes/2012/09/23/msg037435.html
temporarily avoids this problem.
--
t-hash
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