Date: Sat, 13 Apr 2002 12:54:29 -0500 From: Will Andrews <will@csociety.org> To: John Baldwin <jhb@FreeBSD.org> Cc: Makoto Matsushita <matusita@jp.FreeBSD.org>, current@FreeBSD.org Subject: Re: plug aue ethernet goes to panic Message-ID: <20020413175429.GA65074@squall.waterspout.com> In-Reply-To: <XFMail.20020413124436.jhb@FreeBSD.org> References: <20020414010045X.matusita@jp.FreeBSD.org> <XFMail.20020413124436.jhb@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, Apr 13, 2002 at 12:44:36PM -0400, John Baldwin wrote: > Can you get a backtrace in ddb? It looks like a null pointer dereference, and > knowing where it happened would help. Finding the file and line of the > instruction pointer using addr2line on kernel.debug would be helpful as well. It *is* a null pointer deref. Joe and I looked at this problem, and it seems a function called device_get_ivars() isn't doing its job in sys/dev/usb/usb_port.h. So the variable is getting filled with a NULL pointer for the iface element and is later deref'd. That's the limit of my debugging, and Joe is looking into the problem actively. Regards, -- wca To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020413175429.GA65074>