linux-kernel - Re: [PATCH 1/2 v6] kdump: add the vmcoreinfo documentation

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Message-ID: <20190114203500.GU2773@zn.tnic>
Date:   Mon, 14 Jan 2019 21:35:00 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Dave Anderson <anderson@...hat.com>
Cc:     Kazuhito Hagio <k-hagio@...jp.nec.com>,
        Lianbo Jiang <lijiang@...hat.com>,
        linux-kernel@...r.kernel.org, kexec@...ts.infradead.org,
        tglx@...utronix.de, mingo@...hat.com, x86@...nel.org,
        akpm@...ux-foundation.org, bhe@...hat.com, dyoung@...hat.com,
        linux-doc@...r.kernel.org
Subject: Re: [PATCH 1/2 v6] kdump: add the vmcoreinfo documentation

On Mon, Jan 14, 2019 at 03:26:32PM -0500, Dave Anderson wrote:
> No.  It needs *both* the vmlinux file and the vmcore file in order to read kernel
> virtual memory, so just having a kernel virtual address is insufficient.
> 
> So it's a chicken-and-egg situation.  This particular --osrelease option is used
> to determine *what* vmlinux file would be required for an actual crash analysis 
> session.

Ok, that makes sense. I could've used that explanation when reviewing
the documentation. Do you mind skimming through this:

https://lkml.kernel.org/r/20190111145650.GG4729@zn.tnic

in case we've missed explaining relevant usage - like that above - of
some of the vmcoreinfo members?

Thx.

-- 
Regards/Gruss,
    Boris.

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