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[Xen-devel] Re: [PATCH] x86: fix the potential of encountering panic "IO
| To: | Jan Beulich <jbeulich@xxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [PATCH] x86: fix the potential of encountering panic "IO-APIC + timer doesn't work! ..." |
| From: | Ingo Molnar <mingo@xxxxxxx> |
| Date: | Fri, 12 Dec 2008 10:13:29 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 12 Dec 2008 01:14:13 -0800 |
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| User-agent: | Mutt/1.5.18 (2008-05-17) |
* Jan Beulich <jbeulich@xxxxxxxxxx> wrote:
> >From all I can tell, the below reproduced full description of the
> original Linux patch applies to Xen, too - at least in the watchdog
> enabled case IRQs can be enabled when entering setup_IO_APIC(). My
> attention to this change really got caught just by the fact that it got
> added to our (2.6.16-based) SLE10 kernel pretty recently.
note that we had to revert that eventually. The real solution is an array
of fixes from Maciej spread out over many months.
Ingo
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