From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Boris Ostrovsky <boris.ostrovsky@oracle.com>,
xen-devel <xen-devel@lists.xen.org>
Cc: Alex Thorlton <athorlton@sgi.com>, Jan Beulich <jbeulich@suse.com>
Subject: Re: ACPI fixmap overflow
Date: Tue, 15 Nov 2016 19:45:01 +0000 [thread overview]
Message-ID: <a82968b3-985e-2a9a-7252-29f6a05e8f11@citrix.com> (raw)
In-Reply-To: <c0b2cc84-3b0f-7860-d051-6166616f8a5f@oracle.com>
On 15/11/16 19:34, Boris Ostrovsky wrote:
> In addition to running out of e820 entries on that large machine that
> Alex was referring to in [0] he is also running out of ACPI fixmap space
> while parsing MADT (the box has *lots* of processors). The
> quick-and-dirty solution is to increase NUM_FIXMAP_ACPI_PAGES but I
> wonder whether we should move to dynamic memory allocation.
Why do we use fixmap anyway? It doesn't look too hard to reorder
vm_init() slightly higher, and be able to use ioremap() for all APCI tables.
~Andrew
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next prev parent reply other threads:[~2016-11-15 19:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-15 19:34 ACPI fixmap overflow Boris Ostrovsky
2016-11-15 19:45 ` Andrew Cooper [this message]
2016-11-15 20:39 ` Boris Ostrovsky
2016-11-15 20:44 ` Andrew Cooper
2016-11-15 20:51 ` Boris Ostrovsky
2016-11-16 10:08 ` Jan Beulich
2016-11-17 15:01 ` Boris Ostrovsky
2016-11-17 16:04 ` Alex Thorlton
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