RE: [PATCH v2] PCI: hv: Fix a timing issue which causes kdump to fail occasionally

2020-07-17 Thread Wei Hu
r.kernel.org; linux- > p...@vger.kernel.org; linux-kernel@vger.kernel.org; Dexuan Cui > ; Michael Kelley > Subject: Re: [PATCH v2] PCI: hv: Fix a timing issue which causes kdump to fail > occasionally > > On Fri, Jul 17, 2020 at 10:55:28AM +0800, Wei Hu wrote: > > Kdump cou

Re: [PATCH v2] PCI: hv: Fix a timing issue which causes kdump to fail occasionally

2020-07-17 Thread Bjorn Helgaas
On Fri, Jul 17, 2020 at 10:55:28AM +0800, Wei Hu wrote: > Kdump could fail sometime on HyperV guest over Accerlated Network > interface. This is because the retry in hv_pci_enter_d0() relies on > an asynchronous host event to arrive guest before calling > hv_send_resources_allocated(). This fixes t