On Sat, Jun 08, 2013 at 12:50:31AM +0800, Jiang Liu wrote: > On 06/07/2013 11:38 PM, Konrad Rzeszutek Wilk wrote: > > On Fri, Jun 07, 2013 at 10:50:24AM -0400, Konrad Rzeszutek Wilk wrote: > >> On Thu, May 16, 2013 at 11:50:55PM +0800, Jiang Liu wrote: > >>> Use new PCI interfaces to simplify xen-pcifront implementation: > >>> 1) Use pci_create_root_bus() instead of pci_scan_bus_parented() > >>> because pci_scan_bus_parented() is marked as __deprecated.This > >>> also gets rid of a duplicated call of pci_bus_start_devices(). > >>> 2) Use pci_stop_root_bus() and pci_remove_root_bus() instead of > >>> open-coded private implementation. > >>> 3) Use pci_set_host_bridge_release() to release data structures > >>> associated with PCI root buses. > >>> 4) Use pci_bus_get()/pci_bus_put() to manage PCI root bus reference > >>> count. > >>> > >>> This is also a preparation for coming PCI bus lock enhancement. > > > > With this patch from : > > > > Merge branch 'pci_lock_v3' of https://github.com/jiangliu/linux into testing > > > > > > it blows up when detaching the device. > Hi Konrad, > Thanks for testing! According to the log messages, this issue should > be related to pci bus reference counter management. Seems we have done > an extra(unbalanced) release of pci bus device. > Will investigate it tomorrow! That is quite commendable that you are willing to look over this on the weekend but I am not going to be able to rerun this test until some time in the week. You could enjoy the weekend and just look at this during the week. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
