This assertion always happens when we sanitize the CXL memory device. $ echo 1 > /sys/bus/cxl/devices/mem0/security/sanitize It is incorrect to register an MSIX number beyond the device's capability. Increase the device's MSIX number to cover the mailbox msix number(9). Fixes:43efb0bfad
("hw/cxl/mbox: Wire up interrupts for background completion") Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> Message-Id: <20250115075834.167504-1-lizhijian@fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> (cherry picked from commit1ce979e726
) Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>