Date: Tue, 2 Jan 2001 21:37:06 -0800 (PST) From: "Thomas D. Dean" <tomdean@speakeasy.org> To: grog@lemis.com Cc: null@pozo.com, smp@FreeBSD.ORG, current@FreeBSD.ORG Subject: Re: Fatal trap while printing under SMP Message-ID: <200101030537.f035b6u18627@celebris.tddhome> In-Reply-To: <20010103153459.J4336@wantadilla.lemis.com> (message from Greg Lehey on Wed, 3 Jan 2001 15:34:59 %2B1030) References: <5.0.2.1.2.20010102204401.00b13e88@pozo.com> <20010103153459.J4336@wantadilla.lemis.com>
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Here is what I saw on 12/24. This is with DDB and KTRACE. I added
options WITNESS
options INVARIANT_SUPPORT
options INVARIANTS
but gained no futher information.
Fatal Trap 12: page fault while in kernel mode
cpuid=0; lapic.id=00000000
fault virtual address = 0x18c7a2bb
fault code = 0x8:0xc6bb0ca0
stack pointer = 0x10:0xc7aa1f84
frame pointer = 0x10:0xc7aa1f9c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor flags = interrupt enabled, resume, IOPL=0
current process = 416 (irq7, lpt0)
kernel: type 12 trap, code=0
cpu0 stopping CPUs: 0x00000002... stopped
stopped at 0xc6bb0ca0: movb 0x18c7a22b, %al
db> trace
_end(0) at 0xc6bb0ca0
fork_trampoline() at fork_trampoline+0x45
tomdean
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