panic: invalid PDPE on recend amd64
Andriy Gapon
avg at icyb.net.ua
Sat Oct 30 14:55:02 UTC 2010
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?
> 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.
--
Andriy Gapon
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