Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: [PATCH 1/2 v6] kdump: add the vmcoreinfo documentation
To:     Dave Anderson <anderson@redhat.com>,
        Borislav Petkov <bp@alien8.de>,
        Kazuhito Hagio <k-hagio@ab.jp.nec.com>
Cc:     linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
        tglx@linutronix.de, mingo@redhat.com, x86@kernel.org,
        akpm@linux-foundation.org, bhe@redhat.com, dyoung@redhat.com,
        linux-doc@vger.kernel.org
References: <20190110121944.6050-1-lijiang@redhat.com>
 <20190114192144.GQ2773@zn.tnic>
 <134663991.69764038.1547494607008.JavaMail.zimbra@redhat.com>
 <20190114195940.GS2773@zn.tnic>
 <244986363.69770015.1547496453312.JavaMail.zimbra@redhat.com>
 <20190114201812.GT2773@zn.tnic>
 <221183717.69773903.1547497592624.JavaMail.zimbra@redhat.com>
 <20190114203500.GU2773@zn.tnic>
 <1862896935.69778880.1547498954956.JavaMail.zimbra@redhat.com>
From:   lijiang <lijiang@redhat.com>
Message-ID: <a1613510-658e-410c-7554-4b378ae2e756@redhat.com>
Date:   Tue, 15 Jan 2019 19:00:12 +0800
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101
 Thunderbird/52.9.1
MIME-Version: 1.0
In-Reply-To: <1862896935.69778880.1547498954956.JavaMail.zimbra@redhat.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

在 2019年01月15日 04:49, Dave Anderson 写道:
> 
> 
> ----- Original Message -----
>> 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?
> 
> Yeah, I've been watching the thread, and the document looks fine to me.
> It's just that when I saw the discussion of this one being removed that
> I felt the need to respond...  ;-)

Thank you for explaining this issue. 

Regards,
Lianbo

> 
> Dave
>