Date: Wed, 17 Apr 2002 23:25:43 -0400 (EDT) From: Robert Watson <rwatson@FreeBSD.org> To: current@FreeBSD.org Subject: Fatal trap 9: general protection fault while in kernel mode Message-ID: <Pine.NEB.3.96L.1020417232336.64976Z-100000@fledge.watson.org>
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Same configuration as before:
netbooted dual processor box, local /usr/obj, swap, and nfs-mounted
everything else. World build -j 8.
crash1# make -j 8 buildworld >& /tmp/build.out
lock order reversal
1st 0xc8e9c984 DIRHASH (UMA zone) @ ../../../vm/uma_core.c:533
2nd 0xc082aa94 PCPU KMAP ENTRY (UMA cpu) @ ../../../vm/uma_core.c:1301
Debugger("witness_lock")
kernel trap 9 with interrupts disabled
Fatal trap 9: general protection fault while in kernel mode
cpuid = 0; lapic.id = 00000000
instruction pointer = 0x8:0xc0385dee
stack pointer = 0x10:0xc9e59d40
frame pointer = 0x10:0xc9e59d78
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = 10305 (cc1)
kernel: type 9 trap, code=0
I believe the lock order reversal and the panic may not be related.
Unfortunately, the instruction pointer provided here does not appear to
correspond with any code, and I couldn't drop into the debugger so
couldn't get any more information.
Robert N M Watson FreeBSD Core Team, TrustedBSD Project
robert@fledge.watson.org NAI Labs, Safeport Network Services
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