From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: David Vrabel <david.vrabel@citrix.com>
Cc: Juergen Gross <JGross@suse.com>,
xen-devel <xen-devel@lists.xenproject.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Jan Beulich <JBeulich@suse.com>
Subject: Re: Linux'es SLUB incompatible with Xen?
Date: Fri, 26 Sep 2014 14:12:18 -0400 [thread overview]
Message-ID: <20140926181218.GJ5102@laptop.dumpdata.com> (raw)
In-Reply-To: <5423F2BB.6080009@citrix.com>
On Thu, Sep 25, 2014 at 11:47:23AM +0100, David Vrabel wrote:
> 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.
HAHAHA
You are such a comedian :-)
>
> David
prev parent reply other threads:[~2014-09-26 18:12 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
2014-09-26 18:12 ` Konrad Rzeszutek Wilk [this message]
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