From: David Vrabel <david.vrabel@citrix.com>
To: Jan Beulich <JBeulich@suse.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Juergen Gross <JGross@suse.com>,
xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: Linux'es SLUB incompatible with Xen?
Date: Thu, 25 Sep 2014 11:47:23 +0100 [thread overview]
Message-ID: <5423F2BB.6080009@citrix.com> (raw)
In-Reply-To: <5423ED170200007800038C47@mail.emea.novell.com>
On 25/09/14 09:23, Jan Beulich wrote:
> Linux-Xen maintainers,
>
> are you aware that SLUB's use of percpu_cmpxchg16b_double() is
> currently incompatible with Xen when run on old, not cmpxchg16b
> capable x86-64 CPUs (the problem being this_cpu_cmpxchg16b_emu's
> non-paravirtualized use of CLI)? Or is that a simple "we don't care -
> don't run Xen on such old systems" (despite everything else, including
> the hypervisor, working fine there)?
I wasn't aware but I don't care about such old hardware so I'm not going
to fix it.
If you think this should be fixed, please work with the x86 maintainers
to get this fixed.
David
next prev parent reply other threads:[~2014-09-25 10:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-25 8:23 Linux'es SLUB incompatible with Xen? Jan Beulich
2014-09-25 10:08 ` Ian Campbell
2014-09-25 10:53 ` Jan Beulich
2014-09-25 10:57 ` Ian Campbell
2014-09-25 10:47 ` David Vrabel [this message]
2014-09-26 18:12 ` Konrad Rzeszutek Wilk
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