From: Vivek Goyal <vgoyal@redhat.com>
To: Yinghai Lu <yinghai@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>, WANG Chao <chaowang@redhat.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86, kdump: Set crashkernel_low automatically
Date: Mon, 11 Mar 2013 15:38:24 -0400 [thread overview]
Message-ID: <20130311193824.GA14738@redhat.com> (raw)
In-Reply-To: <CAE9FiQUxmipKJfUsZdN+J6wGR66VKfLQ8+z41yd3TCJxXTyDRA@mail.gmail.com>
On Mon, Mar 11, 2013 at 12:34:00PM -0700, Yinghai Lu wrote:
> On Mon, Mar 11, 2013 at 12:10 PM, Vivek Goyal <vgoyal@redhat.com> wrote:
> > Not breaking existing cases makes sense to me.
>
> that is -v2 version:
> try 896M, then try 4G, than MAXMEM.
>
> > May be we should use
> > a new parameter crashkernel_high to force memory reservation above
> > 4G and crashkernel=X continues to reserve memory at lower addresses
> > and remains backward compatible.
>
> No need to use crashkernel_high, we can just cashkernel=X@Y instead.
crashkernel=X@Y is little different. It assumes user knows the memory
map and location "Y" is fixed. There might not be any memory at "Y".
So it is not same.
Thanks
Vivek
next prev parent reply other threads:[~2013-03-11 19:38 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-08 5:54 3.9-rc1: crash kernel panic - not syncing: Can not allocate SWIOTLB buffer earlier and can't now provide you with the DMA bounce buffer WANG Chao
2013-03-08 6:03 ` CAI Qian
2013-03-08 6:32 ` Yinghai Lu
2013-03-08 6:36 ` Yinghai Lu
2013-03-08 7:20 ` WANG Chao
2013-03-08 7:27 ` Yinghai Lu
2013-03-08 7:33 ` WANG Chao
2013-03-08 7:50 ` Yinghai Lu
2013-03-08 12:12 ` WANG Chao
2013-03-08 18:24 ` Yinghai Lu
2013-03-08 19:39 ` Yinghai Lu
2013-03-11 3:42 ` WANG Chao
2013-03-11 4:56 ` [PATCH] x86, kdump: Set crashkernel_low automatically Yinghai Lu
2013-03-11 14:48 ` Vivek Goyal
2013-03-11 15:02 ` Vivek Goyal
2013-03-11 17:58 ` Yinghai Lu
2013-03-11 18:26 ` Vivek Goyal
2013-03-11 18:44 ` Yinghai Lu
2013-03-11 18:46 ` H. Peter Anvin
2013-03-11 18:50 ` Yinghai Lu
2013-03-11 18:55 ` H. Peter Anvin
2013-03-11 19:06 ` Yinghai Lu
2013-03-11 19:06 ` H. Peter Anvin
2013-03-11 19:08 ` Yinghai Lu
2013-03-11 19:20 ` Vivek Goyal
2013-03-11 19:55 ` H. Peter Anvin
2013-03-11 20:12 ` Vivek Goyal
2013-03-11 20:19 ` H. Peter Anvin
2013-03-11 20:36 ` H. Peter Anvin
2013-03-11 20:38 ` Eric W. Biederman
2013-03-11 20:42 ` H. Peter Anvin
2013-03-11 21:10 ` Vivek Goyal
2013-03-11 21:13 ` H. Peter Anvin
2013-03-11 20:45 ` Vivek Goyal
2013-03-11 20:50 ` H. Peter Anvin
2013-03-11 21:03 ` Vivek Goyal
2013-03-11 21:06 ` H. Peter Anvin
2013-03-12 13:46 ` Vivek Goyal
2013-03-12 8:35 ` Ingo Molnar
2013-03-11 20:57 ` Yinghai Lu
2013-03-11 21:06 ` Vivek Goyal
2013-03-11 21:15 ` Yinghai Lu
2013-03-11 19:10 ` Vivek Goyal
2013-03-11 19:34 ` Yinghai Lu
2013-03-11 19:38 ` Vivek Goyal [this message]
2013-03-11 19:39 ` Yinghai Lu
2013-03-11 19:44 ` Vivek Goyal
2013-03-11 19:44 ` Yinghai Lu
2013-03-18 14:46 ` Vivek Goyal
2013-03-18 15:33 ` Vivek Goyal
2013-03-18 19:05 ` Yinghai Lu
2013-03-18 19:10 ` H. Peter Anvin
2013-03-18 20:00 ` Vivek Goyal
2013-03-18 21:14 ` H. Peter Anvin
2013-03-18 21:25 ` [PATCH v3] " Yinghai Lu
2013-03-18 22:52 ` H. Peter Anvin
2013-03-18 23:26 ` Yinghai Lu
2013-03-19 0:27 ` H. Peter Anvin
2013-03-19 1:04 ` [PATCH v4] " Yinghai Lu
2013-03-19 13:33 ` Vivek Goyal
2013-03-19 15:05 ` [PATCH v5] " Yinghai Lu
2013-03-20 13:08 ` Vivek Goyal
2013-03-20 15:53 ` Yinghai Lu
2013-03-20 16:03 ` Vivek Goyal
2013-03-20 16:21 ` Yinghai Lu
2013-03-20 16:31 ` Vivek Goyal
2013-03-20 19:22 ` [PATCH] kexec: use Crash kernel for Crash kernel low Yinghai Lu
2013-03-25 19:42 ` Vivek Goyal
2013-03-25 21:50 ` Yinghai Lu
2013-03-26 18:14 ` Vivek Goyal
2013-04-01 13:34 ` Vivek Goyal
2013-04-01 18:33 ` H. Peter Anvin
2013-04-01 19:26 ` Vivek Goyal
2013-04-01 20:47 ` H. Peter Anvin
2013-04-01 21:10 ` Yinghai Lu
2013-04-01 22:02 ` H. Peter Anvin
2013-04-01 22:17 ` Yinghai Lu
2013-04-01 22:20 ` H. Peter Anvin
2013-04-01 22:40 ` Yinghai Lu
2013-04-02 1:11 ` Yinghai Lu
2013-04-02 13:50 ` Vivek Goyal
2013-04-02 14:17 ` Vivek Goyal
2013-04-02 14:50 ` Yinghai Lu
2013-04-02 14:45 ` Yinghai Lu
2013-04-02 14:58 ` Vivek Goyal
2013-04-02 15:44 ` Yinghai Lu
2013-04-02 15:39 ` Vivek Goyal
2013-04-02 15:46 ` Yinghai Lu
2013-04-02 15:50 ` Vivek Goyal
2013-04-02 17:21 ` Yinghai Lu
2013-04-02 13:30 ` Vivek Goyal
2013-03-11 19:14 ` [PATCH] x86, kdump: Set crashkernel_low automatically Eric W. Biederman
2013-03-11 19:22 ` Vivek Goyal
2013-03-11 19:59 ` H. Peter Anvin
2013-03-11 20:17 ` Vivek Goyal
2013-03-11 19:56 ` H. Peter Anvin
2013-03-11 19:02 ` Vivek Goyal
2013-03-11 19:04 ` H. Peter Anvin
2013-03-11 19:17 ` Vivek Goyal
2013-03-11 13:14 ` 3.9-rc1: crash kernel panic - not syncing: Can not allocate SWIOTLB buffer earlier and can't now provide you with the DMA bounce buffer Konrad Rzeszutek Wilk
2013-03-08 7:52 ` Takao Indoh
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