[Crash-utility] segv in crash-5.0.0
Bob Montgomery
bob.montgomery at hp.com
Tue Feb 2 21:04:48 UTC 2010
On Tue, 2010-02-02 at 14:48 +0000, Dave Anderson wrote:
> ----- "Dave Anderson" <anderson at redhat.com> wrote:
>
> > ----- "Bob Montgomery" <bob.montgomery at hp.com> wrote:
> >
> > > I accidentally tried to dump a struct from a bogus pointer while using
> > > crash-5.0.0 on x86-64.
>
> ... [ snip ] ...
>
> > > Enough to go on? Already known?
> >
> > Not already known...
> >
> > But I can reproduce it (at least with some bogus addresses) -- I'll take
> > a look at it tomorrow...
>
> Caused by a slight change in the crash/gdb-7.0 exception handling.
> Simple fix attached...
The patch fixed the problem on my dump file. It now prints:
crash-5.0.fix> struct bnx2 0xffffc90006b000cf
struct bnx2 struct: invalid kernel virtual address: ffffc90006b000cf
type: "gdb_readmem_callback"Cannot access memory at address
0xffffc90006b000cf
crash-5.0.fix>
Thanks,
Bob M.
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