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Re: [Qemu-devel] [PATCH] rdma: Fix block during rdma migration
From: |
Gonglei (Arei) |
Subject: |
Re: [Qemu-devel] [PATCH] rdma: Fix block during rdma migration |
Date: |
Tue, 1 Apr 2014 01:47:48 +0000 |
> > If the networking break or there's something wrong with rdma
> > device(ib0 with no IP) during rdma migration, the main_loop of
> > qemu will be blocked in rdma_destroy_id. I add rdma_ack_cm_event
> > to fix this bug.
> >
> > Signed-off-by: Mo Yuxiang <address@hidden>
> > Signed-off-by: Gonglei <address@hidden>
> > ---
> > migration-rdma.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/migration-rdma.c b/migration-rdma.c
> > index eeb4302..f60749b 100644
> > --- a/migration-rdma.c
> > +++ b/migration-rdma.c
> > @@ -949,6 +949,7 @@ route:
> > ERROR(errp, "result not equal to event_addr_resolved %s",
> > rdma_event_str(cm_event->event));
> > perror("rdma_resolve_addr");
> > + rdma_ack_cm_event(cm_event);
> > ret = -EINVAL;
> > goto err_resolve_get_addr;
> > }
>
> Reviewed-by: Michael R. Hines <address@hidden>
>
> Good catch. =) That's an obvious bug. It looks like I need
> to do a much better job of "kill -9" inside the regression
> testing scripts - probably i should try killing the migration
> prematurely at different periods just to be sure there are
> no more places where the connection state is not getting
> cleaned up......
>
Sounds good!
Best regards,
-Gonglei