Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 3 Feb 2002 22:48:43 -0500 (EST)
From:      Robert Watson <rwatson@freebsd.org>
To:        hh <hh@dsgx.org>
Cc:        questions@freebsd.org
Subject:   Re: crashs on 4.5RC
Message-ID:  <Pine.NEB.3.96L.1020203224749.22706F-100000@fledge.watson.org>
In-Reply-To: <20020203201654.7cd0390f.hh@dsgx.org>

next in thread | previous in thread | raw e-mail | index | archive | help

On Sun, 3 Feb 2002, hh wrote:

> > Fatal trap 12: page fault while in kernel mode
> > fault virtual address = 0x28  
> > fault code            = supervisor read, page not present
> > instruction pointer   = 0x8:0xc020646c
> > stack pointer         = 0x10:0xc034c384
> > frame pointer         = 0x10:0xc034c3a4
> > code segment          = base 0x0, limit 0xfffff, type 0x1b
> >                       = DPL 0, pres 1, def32 1, gran 1
> > processor eflags      = interrupt enabled, resume, IOPL = 0
> > current process               = Idle  
> > interrupt mask                =
> > trap number           = 12
> > panic: page fault

That's a NULL pointer dereference in some or another piece of kernel code
-- the 0x28 as a fault address indicates that a structure pointer was
dereferenced.  Can you recompile with options DDB and get a stack trace?

Robert N M Watson             FreeBSD Core Team, TrustedBSD Project
robert@fledge.watson.org      NAI Labs, Safeport Network Services



To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.NEB.3.96L.1020203224749.22706F-100000>