Mahesh, I didn't get your email for some reason . I saw it in the Archives. makedumpfile doesn't appear to have a way to drop free form memory areas. So I need to drop 00800000 to 00807fff , but I don't see a way to do that. Any other suggestions on how to prevent this hang ? On 07/11/2016 02:46 PM, Daniel Walker wrote: > > Hi, > > I found found that on my Powerpc machine there is some IO memory which > will cause the box to hang if I read it. It's a custom device that was > added to the board for a special purpose. > > I was looking for a way to exclude this memory from the dump, and > while doing that I found that kexec makes a list of memory segments > that go into the core file. I was wondering why most of the kexec > architecture don't appear to exclude device memory like what's listed > in /proc/iomem. > > Is there a good reason why that's not the case? > > Daniel
