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From: Daniel Walker <danielwa@cisco.com>
To: kexec@lists.infradead.org,
	"xe-kernel@external.cisco.com" <xe-kernel@external.cisco.com>
Subject: IO memory read from /proc/vmcore leads to hang.
Date: Mon, 11 Jul 2016 14:46:01 -0700	[thread overview]
Message-ID: <57841399.1030703@cisco.com> (raw)


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

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             reply	other threads:[~2016-07-11 21:46 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-11 21:46 Daniel Walker [this message]
2016-07-15  7:23 ` IO memory read from /proc/vmcore leads to hang Mahesh Jagannath Salgaonkar
2016-07-20 19:18 ` Daniel Walker
2016-07-21  7:34   ` Maxim Uvarov
2016-07-21 15:19     ` Daniel Walker
2016-07-21 19:33       ` Maxim Uvarov
2016-07-21 20:04         ` Daniel Walker
2016-07-22 11:11           ` Maxim Uvarov
2016-07-25 17:06             ` Daniel Walker

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