Re: [Xen-devel] [PATCH] xen: domain_update_node_affinity: Correct the ASSERT

[Julien Grall <julien.grall@xxxxxxxxxx>]

Hi Dario,

On 07/28/2014 06:25 PM, Dario Faggioli wrote:
> On ven, 2014-07-25 at 16:30 +0100, Julien Grall wrote:
>> The commit "move domain to cpupool0 before destroying it" make Xen crashes
>> when a domain is destroyed with d->vcpus allocated but no VCPU initialized.
>>
> The title of the commit is certainly useful. Perhaps the beginning of
> the hash would have been too.

I didn't add the commit. Because it will be backported to Xen 4.4.

Would it be fine to point to a Xen 4.5 commit in Xen 4.4 branch?

>> Assertion '!cpumask_empty(dom_cpumask)' failed at domain.c:452
>> Xen call trace:
>>     [<00207bd8>] domain_update_node_affinity+0x10c/0x238 (PC)
>>     [<00000004>] 00000004 (LR)
>>     [<00226870>] sched_move_domain+0x3cc/0x42c
>>     [<0020925c>] domain_kill+0xc8/0x178
>>     [<00206a0c>] do_domctl+0xaac/0x15e4
>>     [<002529c0>] do_trap_hypervisor+0xc5c/0xf94
>>     [<002559f0>] return_from_trap+0/0x4
>>
>> Fix the ASSERT to check if d->vcpu is allocated and VCPU 0 is initialized.
>>
>> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
>> Cc: George Dunlap <george.dunlap@xxxxxxxxxx>
>> Cc: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
>> Cc: Juergen Gross <jgross@xxxxxxxx>
>> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
>> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
>> Cc: Jan Beulich <jbeulich@xxxxxxxx>
>> Cc: Keir Fraser <keir@xxxxxxx>
>> Cc: Tim Deegan <tim@xxxxxxx>
>>
> In any case:
> 
> Reviewed-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>

Thanks!

Regards,

-- 
Julien Grall

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