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| From | Olaf Hering <olaf@aepfle.de> |
| Newsgroups | linux.kernel |
| Subject | Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel |
| Date | Thu, 15 Dec 2016 11:40:01 +0100 |
| Message-ID | <sOBC9-4DI-7@gated-at.bofh.it> (permalink) |
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| X-Original-Date | Thu, 15 Dec 2016 11:36:09 +0100 |
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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
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Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-12-15 11:40 +0100
Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Olaf Hering <olaf@aepfle.de> - 2016-12-15 11:40 +0100
Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Olaf Hering <olaf@aepfle.de> - 2016-12-15 11:40 +0100
Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-12-15 12:00 +0100
Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-12-15 12:00 +0100
Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Olaf Hering <olaf@aepfle.de> - 2016-12-15 14:00 +0100
Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-12-15 14:30 +0100
Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Olaf Hering <olaf@aepfle.de> - 2016-12-15 15:00 +0100
Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-12-15 15:40 +0100
RE: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel KY Srinivasan <kys@microsoft.com> - 2016-12-16 02:00 +0100
Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel Olaf Hering <olaf@aepfle.de> - 2016-12-15 16:20 +0100
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