kexec+kdump + vmcoreinfo patch

[Randy Dunlap]

On Sun, 26 Aug 2007 09:23:05 -0400 Neil Horman wrote:

> On Fri, Aug 24, 2007 at 05:01:39PM -0700, Randy Dunlap wrote:
> > 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)
> > 
> haven't looked at your log yet, but how much memory are you passing in your
> crashkernel parameter in your first kernel boot?  Nominally 64MB is the minimum
> recommended for most kernel configurations

Hi Neil,

crashkernel=64M at 16M


> Regards
> Neil
> 
> > 
> > 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.


---
~Randy
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