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Re: [Xen-devel] Using debug-key 'o: Dump IOMMU p2m table, locks up machine

On Tue, Sep 04, 2012 at 10:26:18AM +0100, Jan Beulich wrote:
> >>> On 04.09.12 at 10:13, Sander Eikelenboom <linux@xxxxxxxxxxxxxx> wrote:
> > Hmm don't know how to get the file/line, only thing i have found is:
> > 
> > serveerstertje:/boot# gdb xen-syms-4.2.0-rc4-pre
> > GNU gdb (GDB) 7.0.1-debian
> > Copyright (C) 2009 Free Software Foundation, Inc.
> > License GPLv3+: GNU GPL version 3 or later 
> > <http://gnu.org/licenses/gpl.html>
> > This is free software: you are free to change and redistribute it.
> > There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> > and "show warranty" for details.
> > This GDB was configured as "x86_64-linux-gnu".
> > For bug reporting instructions, please see:
> > <http://www.gnu.org/software/gdb/bugs/>...
> > Reading symbols from /boot/xen-syms-4.2.0-rc4-pre...done.
> > (gdb) x/i 0xffff82c48015c9ee
> > 0xffff82c48015c9ee <context_switch+916>:        mov    %edx,%gs
> > (gdb)
> I'm not really a gdb expert, so I don't know off the top of my
> head either. I thought I said in a previous reply that people
> generally appear to use the addr2line utility for that purpose.

addr2line works, but "l *0xffff82c48015c9ee" in gdb should as well.


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