Hi all, I just triggered a nasty indefinite recursion in pci_default_read_config:
uint32_t pci_default_read_config(PCIDevice *d, uint32_t address, int len) { uint32_t val = 0; assert(len == 1 || len == 2 || len == 4); if (pci_access_cap_config(d, address, len)) { return d->cap.config_read(d, address, len); } len = MIN(len, pci_config_size(d) - address); memcpy(&val, d->config + address, len); return le32_to_cpu(val); } And d->cap.config_read is pointing to pci_default_read_config: (gdb) print *d $3 = {qdev = {id = 0xc99b10 "01:10.0", state = DEV_STATE_INITIALIZED, opts = 0xc99ad0, hotplugged = 0, info = 0x837e60, parent_bus = 0xc71710, num_gpio_out = 0, gpio_out = 0x0, num_gpio_in = 0, gpio_in = 0x0, child_bus = {lh_first = 0x0}, num_child_bus = 0, sibling = { le_next = 0xc99c30, le_prev = 0xc71730}}, config = 0xca3010 "\206\200\312\020\003", cmask = 0xca3120 "\377\377\377\377", wmask = 0xca3230 "", used = 0xca3340 "", bus = 0xc71710, devfn = 32, name = "pci-assign", '\000' <repeats 53 times>, io_regions = {{ addr = 4060102656, size = 16384, filtered_size = 16384, type = 0 '\000', map_func = 0x46a5f0 <assigned_dev_iomem_map>}, {addr = 0, size = 0, filtered_size = 0, type = 0 '\000', map_func = 0}, {addr = 0, size = 0, filtered_size = 0, type = 0 '\000', map_func = 0}, {addr = 4060119040, size = 16384, filtered_size = 16384, type = 0 '\000', map_func = 0x46a5f0 <assigned_dev_iomem_map>}, {addr = 0, size = 0, filtered_size = 0, type = 0 '\000', map_func = 0}, {addr = 0, size = 0, filtered_size = 0, type = 0 '\000', map_func = 0}, {addr = 0, size = 0, filtered_size = 0, type = 0 '\000', map_func = 0}}, config_read = 0x46a050 <assigned_dev_pci_read_config>, config_write = 0x469f30 <assigned_dev_pci_write_config>, irq = 0xca3450, irq_state = 0 '\000', cap_present = 0, msix_cap = 0 '\000', msix_entries_nr = 0, msix_table_page = 0x0, msix_mmio_index = 0, msix_entry_used = 0x0, msix_bar_size = 0, version_id = 2, msix_page_size = 0, msix_irq_entries = 0x0, cap = {supported = 1, start = 64, length = 16, config_read = 0x416770 <pci_default_cap_read_config>, config_write = 0x46b750 <assigned_device_pci_cap_write_config>}} Not good ... Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage h...@suse.de +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Markus Rex, HRB 16746 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html