Date: Sat, 25 Feb 2006 00:00:30 GMT From: Lonnie Olson <fungus@aros.net> To: freebsd-i386@FreeBSD.org Subject: Re: i386/93809: panic: could not copy LDT on RELENG_5_3 through RELENG_5 Message-ID: <200602250000.k1P00U8P033747@freefall.freebsd.org>
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The following reply was made to PR i386/93809; it has been noted by GNATS.
From: Lonnie Olson <fungus@aros.net>
To: bug-followup@FreeBSD.org, fungus@aros.net
Cc:
Subject: Re: i386/93809: panic: could not copy LDT on RELENG_5_3 through RELENG_5
Date: Fri, 24 Feb 2006 16:50:32 -0700
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I replicated this problem again on another box with the debugging symbols.
CPU: AMD Athlon(tm) MP 1900+ (1600.06-MHz 686-class CPU)
Origin = "AuthenticAMD" Id = 0x662 Stepping = 2
Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
OV,PAT,PSE36,MMX,FXSR,SSE>
AMD Features=0xc0480000<MP,AMIE,DSP,3DNow!>
real memory = 1610547200 (1535 MB)
avail memory = 1568526336 (1495 MB)
ACPI APIC Table: <GBT AWRDACPI>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
# less /var/crash/info.2
Dump header from device /dev/da0s1b
Architecture: i386
Architecture Version: 16777216
Dump Length: 1610547200B (1535 MB)
Blocksize: 512
Dumptime: Fri Feb 24 16:33:43 2006
Hostname: pallas.aros.net
Magic: FreeBSD Kernel Dump
Version String: FreeBSD 5.4-RELEASE-p8 #1: Fri Feb 24 15:06:42 MST 2006
fungus@pallas.aros.net:/usr/obj/usr/src/sys/AROS5-SMP
Panic String: could not copy LDT
Dump Parity: 3002008877
Bounds: 2
Dump Status: good
# kgdb kernel.debug /var/crash/vmcore.2
[GDB will not be able to debug user-mode threads:
/usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd".
#0 doadump () at pcpu.h:159
159 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) bt
#0 doadump () at pcpu.h:159
#1 0xc062dc0f in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:410
#2 0xc062df35 in panic (fmt=0xc08970f9 "could not copy LDT")
at /usr/src/sys/kern/kern_shutdown.c:566
#3 0xc080de15 in cpu_fork (td1=0xc4812780, p2=0xc4830710, td2=0xc47c8300,
flags=20) at /usr/src/sys/i386/i386/vm_machdep.c:255
#4 0xc07ab659 in vm_forkproc (td=0xc4812780, p2=0xc4830710,
td2=0xc47c8300,
flags=20) at /usr/src/sys/vm/vm_glue.c:473
#5 0xc0618706 in fork1 (td=0xc4812780, flags=20, pages=0, procp=0xfddccce4)
at /usr/src/sys/kern/kern_fork.c:644
#6 0xc0617604 in fork (td=0xc4812780, uap=0xfddccd14)
at /usr/src/sys/kern/kern_fork.c:97
#7 0xc080c78f in syscall (frame=
{tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = -1077940924, tf_esi
= -1077940944, tf_ebp = -1077941016, tf_isp = -35861132, tf_ebx = 4,
tf_edx = 24, tf_ecx = -1077941232, tf_eax = 2, tf_trapno = 12, tf_err =
2, tf_eip = 671885083, tf_cs = 31, tf_eflags = 518, tf_esp =
-1077941076, tf_ss = 47})
at /usr/src/sys/i386/i386/trap.c:1009
#8 0xc07f9b8f in Xint0x80_syscall () at
/usr/src/sys/i386/i386/exception.s:201
#9 0x0000002f in ?? ()
#10 0x0000002f in ?? ()
#11 0x0000002f in ?? ()
#12 0xbfbfed44 in ?? ()
#13 0xbfbfed30 in ?? ()
#14 0xbfbfece8 in ?? ()
#15 0xfddccd74 in ?? ()
#16 0x00000004 in ?? ()
#17 0x00000018 in ?? ()
#18 0xbfbfec10 in ?? ()
#19 0x00000002 in ?? ()
#20 0x0000000c in ?? ()
#21 0x00000002 in ?? ()
#22 0x280c271b in ?? ()
#23 0x0000001f in ?? ()
#24 0x00000206 in ?? ()
#25 0xbfbfecac in ?? ()
#26 0x0000002f in ?? ()
#27 0x00000000 in ?? ()
#28 0x00000000 in ?? ()
---Type <return> to continue, or q <return> to quit---
#29 0x00000000 in ?? ()
#30 0x00000000 in ?? ()
#31 0x1cdae000 in ?? ()
#32 0xc481054c in ?? ()
#33 0xc4812780 in ?? ()
#34 0xfddccb90 in ?? ()
#35 0xfddccb78 in ?? ()
#36 0xc2ba0480 in ?? ()
#37 0xc063e1d7 in sched_switch (td=0xbfbfed30, newtd=0x4, flags=Cannot
access memory at address 0xbfbfecf8
)
at /usr/src/sys/kern/sched_4bsd.c:881
Previous frame inner to this frame (corrupt stack?)
(kgdb) quit
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