RE: [PATCH v4] PCI: hv: Fix a timing issue which causes kdump to fail occasionally

2020-07-27 Thread Wei Hu
.@vger.kernel.org; linux- > ker...@vger.kernel.org; Dexuan Cui ; Michael Kelley > > Subject: Re: [PATCH v4] PCI: hv: Fix a timing issue which causes kdump to fail > occasionally > > On Mon, Jul 27, 2020 at 03:17:31PM +0800, Wei Hu wrote: > > Kdump could fail sometime on Hype

Re: [PATCH v4] PCI: hv: Fix a timing issue which causes kdump to fail occasionally

2020-07-27 Thread Lorenzo Pieralisi
On Mon, Jul 27, 2020 at 03:17:31PM +0800, Wei Hu wrote: > Kdump could fail sometime on Hyper-V guest over Accelerated Network > interface. This is because the retry in hv_pci_enter_d0() releases > child device strurctures in hv_pci_bus_exit(). Although there is > a second asynchronous device relati