[Xen-devel] Re: [PATCH] enhancement for unmaskable MSI and two cosmetic fixes.

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

Is patch #3 even safe? Looks like if a CPU somehow got all dynamic vectors
stacked up, it would overflow into the stackpointer at the end of the array.

 -- Keir

On 26/01/2010 14:35, "Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx> wrote:

> Yeah, at least we have to apply the first two to fix a bug related to
> unmaskable MSI.  
> Xiantao
> 
> -----Original Message-----
> From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
> Sent: Tuesday, January 26, 2010 10:26 PM
> To: Zhang, Xiantao; xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [PATCH] enhancement for unmaskable MSI and two cosmetic fixes.
> 
> Are these essential for 4.0.0? I've just tagged -rc2, so they've missed
> that.
> 
>  -- Keir
> 
> On 26/01/2010 14:10, "Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx> wrote:
> 
>> 0001: Revert 20334, since it doesn't solve the race for all corner cases.
>> 0002: Fixed unmaskable MSI's IRQ migration.
>> 0003: Reduce eoi stack's size to save per-cpu area.
>> 0004: polarity-switch method for EOI message is only used for
>> non-directed-eoi
>> case. 
>> Xiantao
> 
> 



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel