Re: [Xen-devel] [PATCH] Avoid endless loop for vcpu migration

[Keir Fraser <keir.xen@xxxxxxxxx>]

I'm not versed enough in this aspect of the scheduler to ack or commit this.
It just looks a bit ugly and confusing to me. Needs an Ack from George
therefore.

 -- Keir

On 14/03/2011 14:39, "Juergen Gross" <juergen.gross@xxxxxxxxxxxxxx> wrote:

> On multi-thread multi-core systems an endless loop can occur in vcpu_migrate()
> with credit scheduler. Avoid this loop by changing the interface of pick_cpu
> to indicate a repeated call in this case.
> 
> Signed-off-by: juergen.gross@xxxxxxxxxxxxxx
> 
> 
> 6 files changed, 11 insertions(+), 15 deletions(-)
> xen/common/sched_arinc653.c |    2 +-
> xen/common/sched_credit.c   |   12 +++---------
> xen/common/sched_credit2.c  |    2 +-
> xen/common/sched_sedf.c     |    2 +-
> xen/common/schedule.c       |    6 ++++--
> xen/include/xen/sched-if.h  |    2 +-
> 
> 
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