From: Andrew Jones <drjones@redhat.com>
To: Jan Beulich <JBeulich@novell.com>
Cc: jeremy@goop.org, xen-devel@lists.xensource.com
Subject: Re: [PATCH] [pv-ops domU] support MAXSMP
Date: Fri, 18 Dec 2009 14:51:14 +0100 [thread overview]
Message-ID: <4B2B88D2.5010405@redhat.com> (raw)
In-Reply-To: <4B2B94850200007800026A03@vpn.id2.novell.com>
On 12/18/2009 02:41 PM, Jan Beulich wrote:
>>>> Andrew Jones<drjones@redhat.com> 18.12.09 14:23>>>
>> Another note here is that the amount of stack allocation is the same
>> regardless of the value of num_processors. We're just creating a pointer
>> to this structure on the stack. sizeof is smart enough to pass the
>> appropriate dynamic size on to the mc call for validation though. So I
>> think all should be good with this patch.
>
> Ah, okay. At least it'll be a clear BUG_ON() if an overflow happens. And
> that's probably what you got before your patch?
>
That's right; "kernel BUG at arch/x86/xen/multicalls.c:209!"
Andrew
next prev parent reply other threads:[~2009-12-18 13:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-18 9:31 [PATCH] [pv-ops domU] support MAXSMP Andrew Jones
2009-12-18 10:07 ` Jan Beulich
2009-12-18 10:24 ` Andrew Jones
2009-12-18 13:23 ` Andrew Jones
2009-12-18 13:41 ` Jan Beulich
2009-12-18 13:51 ` Andrew Jones [this message]
2011-06-13 19:42 ` Konrad Rzeszutek Wilk
2011-06-14 7:58 ` Andrew Jones
2011-06-14 14:22 ` Konrad Rzeszutek Wilk
2011-06-14 14:55 ` Andrew Jones
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