Sergey G Nasonov wrote:
> On Thursday 13 January 2011 17:16:06 Gót András wrote:
>> Is this an SMP kernel with more then 1 vcpus configured?
>>
>> (SMP: Added CPU 0 (BSP))
>>
>> Sergey G Nasonov wrote:
>>> On Wednesday 12 January 2011 20:35:38 Colin Percival wrote:
>>>> Hi,
>>>>
>>>> On 01/12/11 05:01, Sergey G Nasonov wrote:
>>>>> I am sorry for intrusion. I have the same problem (pmap_init) running FreeBSD 8.2 r217259 i386 PV mode on Citrix XenServer 5.6. The server is IBM x3650 with intel Xeon 5405
>>>>> panic: pmap_init: page table page is out of range
>>>>>
>>>>> FreeBSD VM has 1GB memory. And this problem does not appear when I reduce amount of RAM to 512 MB.
>>>> Yeah, this is a completely separate bug from the one I'm trying to fix right
>>>> now -- good to know that it's easily reproduced, though, and very interesting
>>>> to hear that it depends on the amount of RAM you have. Do you get the same
>>>> panic with -CURRENT? (I'm guessing you will given that the xen code is very
>>>> close to identical between 9.0 and 8.2, but always best to check...)
>>>>
>>>>
>>> Hi,
>>>
>>> CURRENT kernel goes to panic even with 512 MB RAM:
>>>
>>>
>>> WARNING: loader(8) metadata is missing!
>>> GDB: no debug ports present
>>> KDB: debugger backends: ddb
>>> KDB: current backend: ddb
>>> APIC: Using the MPTable enumerator.
>>> SMP: Added CPU 0 (BSP)
>>> Copyright (c) 1992-2011 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 is a registered trademark of The FreeBSD Foundation.
>>> FreeBSD 9.0-CURRENT #5: Thu Jan 13 13:10:09 MSK 2011
>>> root at fbsd8x32.bcc.:/usr/obj/usr/src/sys/XEN i386
>>> WARNING: WITNESS option enabled, expect reduced performance.
>>> Xen reported: 1995.001 MHz processor.
>>> Timecounter "ixen" frequency 1953125 Hz quality 0
>>> CPU: Intel(R) Xeon(R) CPU E5405 @ 2.00GHz (1995.00-MHz 686-class CPU)
>>> Origin = "GenuineIntel" Id = 0x10676 Family = 6 Model = 17 Stepping = 6
>>> Features=0xbfe3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
>>> Features2=0xce33d<SSE3,DTES64,MON,DS_CPL,VMX,TM2,SSSE3,CX16,xTPR,PDCM,DCA,SSE4.1>
>>> AMD Features=0x20000000<LM>
>>> AMD Features2=0x1<LAHF>
>>> Instruction TLB: 4 KB Pages, 4-way set associative, 128 entries
>>> 1st-level instruction cache: 32 KB, 8-way set associative, 64 byte line size
>>> 1st-level data cache: 32 KB, 8-way set associative, 64 byte line size
>>> L2 cache: 6144 kbytes, 16-way associative, 64 bytes/line
>>> real memory = 536870912 (512 MB)
>>> Physical memory chunk(s):
>>> 0x000000000079b000 - 0x000000001f638fff, 518643712 bytes (126622 pages)
>>> avail memory = 515637248 (491 MB)
>>> ULE: setup cpu 0
>>> [XEN] IPI cpu=0 irq=128 vector=RESCHEDULE_VECTOR (0)
>>> [XEN] IPI cpu=0 irq=129 vector=CALL_FUNCTION_VECTOR (1)
>>> Event-channel device installed.
>>> mem: <memory>
>>> Pentium Pro MTRR support enabled
>>> null: <null device, zero device>
>>> io: <I/O>
>>> nfslock: pseudo-device
>>> random: <entropy source, Software, Yarrow>
>>> [XEN] xen_rtc_probe: probing Hypervisor RTC clock
>>> rtc0: <Xen Hypervisor Clock> on motherboard
>>> [XEN] xen_rtc_attach: attaching Hypervisor RTC clock
>>> rtc0: registered as a time-of-day clock (resolution 1000000us, adjustment 0.500000000s)
>>> xenstore0: <XenStore> on motherboard
>>> Device configuration finished.
>>> procfs registered
>>> Timecounters tick every 10.000 msec
>>> [XEN] hypervisor wallclock nudged; nudging TOD.
>>> lo0: bpf attached
>>> xenbusb_front0: <Xen Frontend Devices> on xenstore0
>>>
>>>
>>> Fatal trap 1: privileged instruction fault while in kernel mode
>>> cpuid = 0; apic id = 00
>>> instruction pointer= 0x21:0xc0334e5c
>>> stack pointer = 0x29:0xc21fec84
>>> frame pointer = 0x29:0xc21fec88
>>> code segment= base 0x0, limit 0xfffff, type 0x1b
>>> = DPL 1, pres 1, def32 xn0: <Virtual Network Interface> at device/vif/0 on xenbusb_front0
>>> 1, gran 1
>>> processor eflags= interrupt enabled, resume, IOPL = 0
>>> current process= 11 (idle: cpu0)
>>> [ thread pid 11 tid 100003 ]
>>> Stopped at outb_+0x6ac: monitor
>>> db>
>
>
> No, this is FreeBSD CURRENT VM with single vCPU.
> Adding additional vCPU lead to another problem. For example:
>
> WARNING: loader(8) metadata is missing!
> GDB: no debug ports present
> KDB: debugger backends: ddb
> KDB: current backend: ddb
> APIC: Using the MPTable enumerator.
> SMP: Added CPU 0 (BSP)
> SMP: Added CPU 1 (AP)
> Copyright (c) 1992-2011 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 is a registered trademark of The FreeBSD Foundation.
> FreeBSD 9.0-CURRENT #5: Thu Jan 13 13:10:09 MSK 2011
> root at fbsd8x32.bcc.:/usr/obj/usr/src/sys/XEN i386
> WARNING: WITNESS option enabled, expect reduced performance.
> Xen reported: 1994.998 MHz processor.
> Timecounter "ixen" frequency 1953125 Hz quality 0
> CPU: Intel(R) Xeon(R) CPU E5405 @ 2.00GHz (1995.00-MHz 686-class CPU)
> Origin = "GenuineIntel" Id = 0x10676 Family = 6 Model = 17 Stepping = 6
> Instruction TLB: 4 KB Pages, 4-way set associative, 128 entries
> 1st-level instruction cache: 32 KB, 8-way set associative, 64 byte line size
> 1st-level data cache: 32 KB, 8-way set associative, 64 byte line size
> L2 cache: 6144 kbytes, 16-way associative, 64 bytes/line
> real memory = 536870912 (512 MB)
> Physical memory chunk(s):
> 0x000000000079b000 - 0x000000001f638fff, 518643712 bytes (126622 pages)
> avail memory = 515637248 (491 MB)
> gdtpfn=18ec63 pdptpfn=8930c
> panic: HYPERVISOR_vcpu_op(VCPUOP_initialise, cpu, &ctxt): /usr/src/sys/i386/xen/mp_machdep.c:926
> cpuid = 0
> KDB: enter: panic
> [ thread pid 0 tid 0 ]
> Stopped at kdb_enter+0x3a: movl $0,kdb_why
> db>
> Features=0xbfe3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> Features2=0xce33d<SSE3,DTES64,MON,DS_CPL,VMX,TM2,SSSE3,CX16,xTPR,PDCM,DCA,SSE4.1>
> AMD Features=0x20000000<LM>
> AMD Features2=0x1<LAHF>
>
>
I can confirm this...
Started domain freebsd-pv (id=27)
WARNING: loader(8) metadata is missing!
GDB: no debug ports present
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2011 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 is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.0-CURRENT #0: Thu Jan 13 21:57:19 CET 2011
root at fbsd-hvm:/usr/obj/usr/src/current/src/sys/XEN i386
WARNING: WITNESS option enabled, expect reduced performance.
Xen reported: 3000.104 MHz processor.
Timecounter "ixen" frequency 1953125 Hz quality 0
CPU: Intel(R) Xeon(R) CPU X5450 @ 3.00GHz (3000.10-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x10676 Family = 6 Model = 17 Stepping = 6
Features=0xbfe3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0xce3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,SSE4.1>
AMD Features=0x20000000<LM>
AMD Features2=0x1<LAHF>
real memory = 536870912 (512 MB)
avail memory = 515633152 (491 MB)
[XEN] IPI cpu=0 irq=128 vector=RESCHEDULE_VECTOR (0)
[XEN] IPI cpu=0 irq=129 vector=CALL_FUNCTION_VECTOR (1)
[XEN] xen_rtc_probe: probing Hypervisor RTC clock
rtc0: <Xen Hypervisor Clock> on motherboard
[XEN] xen_rtc_attach: attaching Hypervisor RTC clock
xenstore0: <XenStore> on motherboard
xc0: <Xen Console> on motherboard
Timecounters tick every 10.000 msec
xenbusb_front0: <Xen Frontend Devices> on xenstore0
[XEN] hypervisor wallclock nudged; nudging TOD.
xenbusb_back0: <Xen Backend Devices> on xenstore0
xctrl0: <Xen Control Device> on xenstore0
Fatal trap 1: privileged instruction fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer = 0x21:0xc0334e5c
stack pointer = 0x29:0xc21fec84
frame pointer = 0x29:0xc21fec88
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 1, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 11 (idle: cpu0)
[ thread pid 11 tid 100003 ]
Stopped at outb_+0x6ac: monitor
db>