From: Andi Kleen <ak@suse.de>
To: Willy Tarreau <w@1wt.eu>
Cc: linux-kernel@vger.kernel.org, stable@kernel.org,
Zou Nan hai <nanhai.zou@intel.com>,
Suresh Siddha <suresh.b.siddha@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Chris Wright <chrisw@sous-sol.org>,
Greg Kroah-Hartman <gregkh@suse.de>
Subject: Re: [2.6.20.16 review 08/28] x86_64: allocate sparsemem memmap above 4G
Date: Sun, 12 Aug 2007 12:18:11 +0200 [thread overview]
Message-ID: <200708121218.12411.ak@suse.de> (raw)
In-Reply-To: <20070811184837.%N@1wt.eu>
On Saturday 11 August 2007 21:48, Willy Tarreau wrote:
> On systems with huge amount of physical memory, VFS cache and memory memmap
> may eat all available system memory under 4G, then the system may fail to
> allocate swiotlb bounce buffer.
>
> There was a fix for this issue in arch/x86_64/mm/numa.c, but that fix dose
> not cover sparsemem model.
Have you checked if sparsemem even worked in 2.6.20? Irc it was quite
unstable a couple of releases ago. There were times where it rarely
booted on x86-64 because so few people test it.
If not the patch is not needed, although relatively harmless too.
-Andi
next prev parent reply other threads:[~2007-08-12 10:21 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-11 18:47 [2.6.20.16 review 00/28] 2.6.20.16 -stable review Willy Tarreau
2007-08-11 19:47 ` [2.6.20.16 review 01/28] i386: Fix K8/core2 oprofile on multiple CPUs Willy Tarreau
2007-08-11 19:47 ` [2.6.20.16 review 02/28] md: Avoid overflow in raid0 calculation with large components Willy Tarreau
2007-08-11 19:47 ` [2.6.20.16 review 03/28] md: Dont write more than is required of the last page of a bitmap Willy Tarreau
2007-08-11 19:47 ` [2.6.20.16 review 04/28] make freezeable workqueues singlethread Willy Tarreau
2007-08-11 19:47 ` [2.6.20.16 review 05/28] Char: cyclades, fix deadlock Willy Tarreau
2007-08-11 19:47 ` [2.6.20.16 review 06/28] e1000: disable polling before registering netdevice Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 08/28] x86_64: allocate sparsemem memmap above 4G Willy Tarreau
2007-08-12 10:18 ` Andi Kleen [this message]
2007-08-12 11:52 ` Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 09/28] sparsemem: fix oops in x86_64 show_mem Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 10/28] rt-mutex: Fix stale return value Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 11/28] rt-mutex: Fix chain walk early wakeup bug Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 13/28] md: Fix two raid10 bugs Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 14/28] md: Fix bug in error handling during raid1 repair Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 15/28] dm crypt: disable barriers Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 16/28] dm crypt: fix call to clone_init Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 17/28] dm crypt: fix avoid cloned bio ref after free Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 19/28] sched: fix next_interval determination in idle_balance() Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 21/28] audit: fix oops removing watch if audit disabled Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 22/28] POWERPC: Fix subtle FP state corruption bug in signal return on SMP Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 23/28] mm: kill validate_anon_vma to avoid mapcount BUG Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 24/28] saa7134: fix thread shutdown handling Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 25/28] serial: clear proper MPSC interrupt cause bits Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 26/28] i386: fix infinite loop with singlestep int80 syscalls Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 27/28] NTP: remove clock_was_set() call to prevent deadlock Willy Tarreau
2007-08-12 11:15 ` Jason Uhlenkott
2007-08-12 11:47 ` Willy Tarreau
2007-08-11 19:48 ` [2.6.20.16 review 28/28] sky2: workaround for lost IRQ Willy Tarreau
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