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Date:      Sat, 30 Oct 2010 15:00:00 +0000
From:      Paul B Mahol <onemda@gmail.com>
To:        Andriy Gapon <avg@icyb.net.ua>
Cc:        current@freebsd.org
Subject:   Re: panic: invalid PDPE on recend amd64
Message-ID:  <AANLkTin%2BmKfgwKN8YH1YOhx7cXFaUOM=Q2JjLVKQFe%2Bt@mail.gmail.com>
In-Reply-To: <4CCC31C1.5090602@icyb.net.ua>
References:  <AANLkTimiEEXb6wVQMkjn2AKHM9tuPxF6eDX9w%2BrFyLXT@mail.gmail.com> <4CCC31C1.5090602@icyb.net.ua>

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On 10/30/10, Andriy Gapon <avg@icyb.net.ua> wrote:
> on 30/10/2010 17:43 Paul B Mahol said the following:
>> Hi,
>>
>> Booting amd64 kernel panic in pmap_demote_DMAP(): invalid PDPE
>>
>> This is on:
>>
>> Copyright (c) 1992-2010 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 #1 r214542+ac89f9b: Sat Oct 30 09:40:45 UTC 2010
>>     root@:/usr/obj/usr/src/sys/kernel i386
> ----------------------------------------^^^^
> amd64 or i386?

That is working i386 kernel, I can send bt of amd64 kernel as picture.
>
>> CPU: Intel(R) Core(TM)2 CPU         T5500  @ 1.66GHz (1662.54-MHz
>> 686-class CPU)
>>   Origin = "GenuineIntel"  Id = 0x6f2  Family = 6  Model = f  Stepping = 2
>>
>> Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
>>
>> Features2=0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
>>   AMD Features=0x20100000<NX,LM>
>>   AMD Features2=0x1<LAHF>
>>   TSC: P-state invariant
>> real memory  = 2147483648 (2048 MB)
>> avail memory = 2087346176 (1990 MB)
>> ACPI APIC Table: <HP     30A2    >
>> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
>> FreeBSD/SMP: 1 package(s) x 2 core(s)
>>  cpu0 (BSP): APIC ID:  0
>>  cpu1 (AP): APIC ID:  1
>> ioapic0: Changing APIC ID to 1
>> ioapic0 <Version 2.0> irqs 0-23 on motherboard
>> acpi0: <HPQOEM SLIC-MPC> on motherboard
>> acpi0: Power Button (fixed)
>> acpi0: reservation of 0, a0000 (3) failed
>
> It seems that the panic happens at the stage where you should be able to
> enter
> ddb and obtain a backtrace at the very least, after adding DDB option to
> your
> kernel.



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