kexec+kdump + vmcoreinfo patch

Randy Dunlap rdunlap at
Fri Aug 24 20:01:39 EDT 2007

On Fri, 24 Aug 2007 14:41:47 -0700 Randy Dunlap wrote:

> Hi,
> I'm trying to use the recent vmcoreinfo patch...

> c.  My 2.6.23-rc3 dump-capture kernel currently faults a few times,
> then it panics.  I'll add a serial console and capture its output
> to see what is going on.

I booted 3 times with no problems (without serial console on the
dump-capture kernel), then I added a serial console to that kernel
and got lots of problems.  They all seem to be OOM problems, then
the kernel gives up and falls over.  (log attached)

d.  Documentation/kdump/kdump.txt mentions an option to produce
ELF32 headers instead of 64-bit headers:  --elf32-core-headers.
Where is this option used?  I.e., what program recognizes it?
kdump.txt isn't telling me this info and I can't read it between
the lines.

*** Remember to use Documentation/SubmitChecklist when testing your code ***
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