[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: xen boot crash
On Wed, Jan 12, Olaf Hering wrote: > On Wed, Jan 12, Christoph Egger wrote: > > > > > Hi! > > > > Changeset 22706:ca10302ac285 causes below boot crash. > > Reverting it makes xen boot again. > > > > The rip points to xen/common/page_alloc.c:543 > > Yes, that change was not well done. Sorry for that. I'm sure it doesnt > crash if set_gpfn_from_mfn() is called from free_domheap_pages(). > > Looking at free_heap_pages(), now the page owner is cleared at the > beginning of the loop. But later in the loop it is checked wether a TLB > flush is required. So the set_gpfn_from_mfn() should be at least moved > past this check. Even if that doesnt fix the crash you are seening. > > I will see if I can come up with a better version. It crashes in end_boot_allocator -> init_heap_pages -> free_heap_pages. paging_init() initializes the machine_to_phys_mapping[] array, but its called after end_boot_allocator(). As Keir said, there needs to be a more complete change for the machine_to_phys_mapping[] array handling. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |