Re: [PATCH v3] PCI: hv: Fix a timing issue which causes kdump to fail occasionally

2020-07-23 Thread Lorenzo Pieralisi
On Thu, Jul 23, 2020 at 03:52:39PM +, Wei Hu wrote: > > -Original Message- > > From: Lorenzo Pieralisi > > > Kdump could fail sometime on Hyper-V guest over Accelerated Network > > > interface. This is because the retry in hv_pci_enter_d0() relies on an > > > asynchronous host event

RE: [PATCH v3] PCI: hv: Fix a timing issue which causes kdump to fail occasionally

2020-07-23 Thread Wei Hu
> -Original Message- > From: Lorenzo Pieralisi > > Kdump could fail sometime on Hyper-V guest over Accelerated Network > > interface. This is because the retry in hv_pci_enter_d0() relies on an > > asynchronous host event arriving before the guest calls > > hv_send_resources_allocated().

Re: [PATCH v3] PCI: hv: Fix a timing issue which causes kdump to fail occasionally

2020-07-23 Thread Lorenzo Pieralisi
On Sat, Jul 18, 2020 at 11:47:52AM +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() relies on > an asynchronous host event arriving before the guest calls > hv_send_resources_allocated(). Fix the

RE: [PATCH v3] PCI: hv: Fix a timing issue which causes kdump to fail occasionally

2020-07-20 Thread Michael Kelley
el@vger.kernel.org; Dexuan > Cui ; Michael Kelley > Cc: Wei Hu > Subject: [PATCH v3] PCI: hv: Fix a timing issue which causes kdump to fail > occasionally > > Kdump could fail sometime on Hyper-V guest over Accelerated Network > interface. This is because the retry in hv_pci_ente

[PATCH v3] PCI: hv: Fix a timing issue which causes kdump to fail occasionally

2020-07-17 Thread Wei Hu
Kdump could fail sometime on Hyper-V guest over Accelerated Network interface. This is because the retry in hv_pci_enter_d0() relies on an asynchronous host event arriving before the guest calls hv_send_resources_allocated(). Fix the problem by moving retry to hv_pci_probe(), removing this