From: Jiri Slaby <jirislaby@gmail.com>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Greg Thelen <gthelen@google.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
cl@linux-foundation.com
Subject: Re: mmotm boot panic bootmem-avoid-dma32-zone-by-default.patch
Date: Thu, 11 Mar 2010 22:40:05 +0100 [thread overview]
Message-ID: <4B996335.7070907@gmail.com> (raw)
In-Reply-To: <4B994EC4.2050705@kernel.org>
On 03/11/2010 09:12 PM, Yinghai Lu wrote:
> On 03/11/2010 02:54 AM, Jiri Slaby wrote:
>> Hi, yes, it is 2.6.27.
>
> SLES 11?
Sorry I wrote that in haste. It is SLES 10 in the end. That means it is
2.6.16, not 2.6.27. Hence no sparsemem whatsoever. With SLES11 it should
be OK, we are using flatmem only for i386.
Whatever, it should be no issue now, as flatmem currently (as of 2.6.25)
depends on i386.
On the other hand I still considered the patch as applicable to
contemporary kernels since there might be weird bios e820 maps and huge
(and sparse) bootmem allocations/reservations (memory cgroups, initrd)
so that code requiring much memory below 4g (swiotlb) will fail then.
Whatever, in the current kernel, the particular issue I was referring to
*is not reproducible*.
thanks,
--
js
next prev parent reply other threads:[~2010-03-11 21:40 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <49b004811003041321g2567bac8yb73235be32a27e7c@mail.gmail.com>
[not found] ` <20100305032106.GA12065@cmpxchg.org>
2010-03-05 9:04 ` mmotm boot panic bootmem-avoid-dma32-zone-by-default.patch Yinghai Lu
2010-03-05 10:26 ` Jiri Slaby
2010-03-05 20:27 ` Yinghai Lu
2010-03-07 1:17 ` Yinghai Lu
2010-03-11 10:54 ` Jiri Slaby
2010-03-11 20:12 ` Yinghai Lu
2010-03-11 21:40 ` Jiri Slaby [this message]
2010-03-11 21:42 ` Yinghai Lu
2010-03-05 13:08 ` Johannes Weiner
[not found] ` <49b004811003042117n720f356h7e10997a1a783475@mail.gmail.com>
2010-03-05 18:41 ` Yinghai Lu
2010-03-05 19:09 ` Greg Thelen
2010-03-05 20:38 ` [PATCH] x86/bootmem: introduce bootmem_default_goal Yinghai Lu
2010-03-06 5:44 ` please don't apply : bootmem: avoid DMA32 zone by default Yinghai Lu
2010-03-07 0:22 ` Andrew Morton
2010-03-07 0:42 ` Yinghai Lu
2010-03-07 0:53 ` Yinghai Lu
2010-03-07 2:15 ` [PATCH] sparsemem: on no vmemmap path put mem_map on node high too Yinghai Lu
2010-03-07 1:03 ` please don't apply : bootmem: avoid DMA32 zone by default Paul Mackerras
2010-03-07 1:48 ` Stephen Rothwell
2010-03-07 9:16 ` Russell King
2010-03-05 23:58 ` mmotm boot panic bootmem-avoid-dma32-zone-by-default.patch Johannes Weiner
2010-03-06 1:50 ` Yinghai Lu
2010-03-06 2:24 ` Johannes Weiner
2010-03-06 2:31 ` Yinghai Lu
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