This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


RE: [Xen-devel] Kernel pv_ops freeze on start, No available IRQ

To: Fantu <fantonifabio@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] Kernel pv_ops freeze on start, No available IRQ to bind to, increase nr_irqs!
From: "Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx>
Date: Tue, 2 Mar 2010 15:09:28 +0800
Accept-language: en-US
Acceptlanguage: en-US
Delivery-date: Mon, 01 Mar 2010 23:11:18 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <27745067.post@xxxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <27059994.post@xxxxxxxxxxxxxxx> <20100107133734.GW25902@xxxxxxxxxxx> <27063167.post@xxxxxxxxxxxxxxx> <20100107211424.GC25902@xxxxxxxxxxx> <27076636.post@xxxxxxxxxxxxxxx> <4B58CF63.9060807@xxxxxxxx> <27608625.post@xxxxxxxxxxxxxxx> <20100216142735.GF2861@xxxxxxxxxxx> <27612307.post@xxxxxxxxxxxxxxx> <27714129.post@xxxxxxxxxxxxxxx> <27718305.post@xxxxxxxxxxxxxxx> <20100226144241.GO2761@xxxxxxxxxxx> <27741588.post@xxxxxxxxxxxxxxx> <20100301102119.GL2761@xxxxxxxxxxx> <1267439232.11737.20528.camel@xxxxxxxxxxxxxxxxxxxxxx> <1267439564.11737.20554.camel@xxxxxxxxxxxxxxxxxxxxxx> <27742020.post@xxxxxxxxxxxxxxx> <1267441546.11737.20662.camel@xxxxxxxxxxxxxxxxxxxxxx> <27745067.post@xxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: Acq5VNPi8KhMAXhJR/qMxK1vkrizMgAgd2Xg
Thread-topic: [Xen-devel] Kernel pv_ops freeze on start, No available IRQ to bind to, increase nr_irqs!
Fantu wrote:
> I have try xen/master with CONFIG_SPARSE_IRQ=n and reverse of your
> patch but nothing, after i try xen/stable with CONFIG_SPARSE_IRQ=n
> and apply patch
> 0001-x86-ioapic-Remove-the-hack-for-calculating-nr_irq_ from another
> post and work... finally xen 4 with kernel pv_ops work on  Dell T610
> :jumping:  

Have you tried CONFIG_SPARSE_IRQ=y with this patch ?  I think it should work as 

> Ian Campbell-10 wrote:
>> On Mon, 2010-03-01 at 10:45 +0000, Fantu wrote:
>>> i have problem more before...
>>> CONFIG_SPARSE_IRQ=y on all .config i have used, i can change to n
>>> and try or must set to y?
>> Try reverting this first:
>> commit 68458a366412dbbfa726dbdd403e94be5ac10a69
>> Author: Ian Campbell <ian.campbell@xxxxxxxxxx>
>> Date:   Fri Feb 26 10:59:35 2010 +0000
>>     xen: fix off-by-one error in find_unbound_irq
>>     e459de95 "Find an unbound irq number in reverse order (high to
>>     low)" introduced an off by one error which would cause repeated
>>     allocations of the nr_irq'th IRQ if there are no spare
>> interrupts (i.e. get_nr_hw_irqs() == nr_irqs). 
>>     Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
>>     Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
>>     Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
>>     Signed-off-by: Jeremy Fitzhardinge
>> <jeremy.fitzhardinge@xxxxxxxxxx> 
>> If that doesn't help then try setting CONFIG_SPARSE_IRQ to n.
>> Ian.

Xen-devel mailing list