no core file handler recognizes format
Stanislav Sedov
stas at 310.ru
Fri May 12 22:39:39 UTC 2006
On Fri, May 12, 2006 at 03:00:19PM -0700, Avleen Vig wrote:
> My 6.0 box[1], and now my 6.1 box[1] have been crashing almost daily,
> due to page faults. Last night I was lucky enough to see it happen on
> screen, where it reported a "Page not present" error.
>
> When I try to look at the code file in GDB, I get this error:
>
> warning: "/usr/home/avleen/vmcore.0": no core file handler recognizes
> format, using default
> Can't fetch registers from this type of core file
> Can't fetch registers from this type of core file
> #0 0x00000000 in ?? ()
>
>
> I did see a message from a few months ago which stated the userworld
> could be out of step with the kernel becaus the core file format changed
> at some point, but I've been building the kernel and world together for
> 6.0 and 6.1.
>
> Any suggestions befoer I downgrade to 5.4?
>
You should use kgdb rather the gdb. GDB doesn't recognizes kernel dumps
format by default.
--
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Stanislav Sedov MBSD labs, Inc. <ssedov at mbsd.msk.ru>
If the facts don't fit the theory, change the facts. -- A. Einstein
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