Ardour crashes with multiple soundcards

Hi, Ardour crashes, while recording; with multiple soundcards. I use two Maudio delta 2496 cards. The terminal says the following: terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc wine: Assertion failed at address 0xffffe410 (thread 0009), starting debugger... fixme:ntdll:FILE_GetNtStatus Converting errno 12 to STATUS_UNSUCCESSFUL fixme:ntdll:FILE_GetNtStatus Converting errno 12 to STATUS_UNSUCCESSFUL fixme:ntdll:FILE_GetNtStatus Converting errno 12 to STATUS_UNSUCCESSFUL fixme:ntdll:FILE_GetNtStatus Converting errno 12 to STATUS_UNSUCCESSFUL fixme:ntdll:FILE_GetNtStatus Converting errno 12 to STATUS_UNSUCCESSFUL fixme:ntdll:FILE_GetNtStatus Converting errno 12 to STATUS_UNSUCCESSFUL fixme:ntdll:FILE_GetNtStatus Converting errno 12 to STATUS_UNSUCCESSFUL fixme:ntdll:FILE_GetNtStatus Converting errno 12 to STATUS_UNSUCCESSFUL err:seh:raise_exception Unhandled exception code c0000005 flags 0 addr 0xb7e27067 no space in Ardour-UI request buffer for thread unknown no space in Ardour-UI request buffer for thread unknown no space in Ardour-UI request buffer for thread unknown no space in Ardour-UI request buffer for thread unknown no space in Ardour-UI request buffer for thread unknown no space in Ardour-UI request buffer for thread unknown no space in Ardour-UI request buffer for thread unknown no space in Ardour-UI request buffer for thread unknown no space in Ardour-UI request buffer for thread unknown Segmentation fault has anyone any idea, why this is happening? Thanks Thomas