Messages in this thread | | | Date | Thu, 15 Dec 2016 11:36:09 +0100 | From | Olaf Hering <> | Subject | Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel |
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On Thu, Dec 15, Olaf Hering wrote:
> On Thu, Dec 15, Vitaly Kuznetsov wrote: > > > I see a number of minor but at least one major issue against such move: > > At least for some Hyper-V versions (2012R2 for example) > > CHANNELMSG_UNLOAD_RESPONSE is delivered to the CPU which initially sent > > CHANNELMSG_REQUESTOFFERS and on kdump we may not have this CPU up as > > we usually do kdump with nr_cpus=1 (and on the CPU which crashed). > > Since the kdump or kexec kernel will send the unload during boot I would > expect the response to arrive where it was sent, independent from the > number of cpus.
Wait, I just noticed that "REQUESTOFFERS" now. That might be a reason why my suggestion will not work.
Olaf [unhandled content-type:application/pgp-signature] | |