On 26/02/15 05:52, Juergen Gross wrote: > Using the pvops kernel a NULL pointer dereference was detected on a > large machine (144 processors) when booting as dom0 in > evtchn_fifo_unmask() during assignment of a pirq. > > The event channel in question was the first to need a new entry in > event_array[] in events_fifo.c. Unfortunately xen_irq_info_pirq_setup() > is called with evtchn being 0 for a new pirq and the real event channel > number is assigned to the pirq only during __startup_pirq(). > > It is mandatory to call xen_evtchn_port_setup() after assigning the > event channel number to the pirq to make sure all memory needed for the > event channel is allocated.
Applied to stable/for-linus-4.0 and tagged for stable, thanks. David _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
