Greg, Yes, after CONFIG_DENUG_INFO=y, then symbol error is gone. ---enry --- On Mon, 4/13/09, Greg KH <greg at kroah.com> wrote: > From: Greg KH <greg at kroah.com> > Subject: Re: no symbol tabel in upgrade kernel > To: "hong zhang" <henryzhang62 at yahoo.com> > Cc: devel at linuxdriverproject.org > Date: Monday, April 13, 2009, 11:25 AM > On Sun, Apr 12, 2009 at 02:03:00PM -0700, hong zhang wrote: > > > > List, > > > > When oops comes up, I can trace offending code line > using > > > > 1. gdb *.ko > > 2. list *offending_address > > > > > > to get an offending code line in commercial > distribution. > > But if I download newer kernel and do > > > > 1.make > > 2.make modules_install > > 3. make install > > > > There is no symbol table compalin when I do "list > *offending_address". > > > > I could not figure out why. > > Did you enable the debugging symbols in your kernel build > that you built > yourself? If not, that's probably why :) > > thanks, > > greg k-h