On Tue, Mar 25, 2025 at 04:56:33PM +0300, Dan Carpenter wrote: > If I had to guess, I'd say that it was related to Fixes: d9f2164238d8 > ("PCI/MSI: Convert pci_msi_ignore_mask to per MSI domain flag"). I > suspect d->host_data can be NULL. I could be wrong, but let's add Roger > to the CC list just in case. Indeed, sorry. There's a patch from Thomas to switch to using pci_msi_domain_supports() for fetching the flag, as there's no guarantee all call contexts will have an associated msi_domain_info: https://lore.kernel.org/xen-devel/87v7rxzct0.ffs@tglx/ Regards, Roger.