Re: Kernel panic in __pci_enable_msix_range on Xen PV with PCI passthrough

2021-08-25 Thread Marek Marczykowski-Górecki
On Wed, Aug 25, 2021 at 05:55:09PM +0200, Jan Beulich wrote: > On 25.08.2021 17:47, Marek Marczykowski-Górecki wrote: > > If so, I guess the issue is the kernel trying to write directly, instead > > of via some hypercall, right? > > Indeed. Or to be precise - the kernel isn't supposed to be "writi

Re: Kernel panic in __pci_enable_msix_range on Xen PV with PCI passthrough

2021-08-25 Thread Jan Beulich
On 25.08.2021 17:47, Marek Marczykowski-Górecki wrote: > On Wed, Aug 25, 2021 at 05:33:54PM +0200, Jan Beulich wrote: >> On 25.08.2021 17:24, Marek Marczykowski-Górecki wrote: >>> On recent kernel I get kernel panic when starting a Xen PV domain with >>> PCI devices assigned. This happens on 5.10.6

Re: Kernel panic in __pci_enable_msix_range on Xen PV with PCI passthrough

2021-08-25 Thread Marek Marczykowski-Górecki
On Wed, Aug 25, 2021 at 05:33:54PM +0200, Jan Beulich wrote: > On 25.08.2021 17:24, Marek Marczykowski-Górecki wrote: > > On recent kernel I get kernel panic when starting a Xen PV domain with > > PCI devices assigned. This happens on 5.10.60 (worked on .54) and > > 5.4.142 (worked on .136): > >

Re: Kernel panic in __pci_enable_msix_range on Xen PV with PCI passthrough

2021-08-25 Thread Jan Beulich
On 25.08.2021 17:24, Marek Marczykowski-Górecki wrote: > On recent kernel I get kernel panic when starting a Xen PV domain with > PCI devices assigned. This happens on 5.10.60 (worked on .54) and > 5.4.142 (worked on .136): > > [ 13.683009] pcifront pci-0: claiming resource :00:00.0/0 > [

Kernel panic in __pci_enable_msix_range on Xen PV with PCI passthrough

2021-08-25 Thread Marek Marczykowski-Górecki
Hi, On recent kernel I get kernel panic when starting a Xen PV domain with PCI devices assigned. This happens on 5.10.60 (worked on .54) and 5.4.142 (worked on .136): [ 13.683009] pcifront pci-0: claiming resource :00:00.0/0 [ 13.683042] pcifront pci-0: claiming resource :00:00.0/1 [