Software raid broken in recent kernels

[Dennis Jacobfeuerborn]

I can't get recent kernels to boot because they don't seem to find 
necessary devices ("no devices found for /dev/mdX"). The status is as follows:

works -> kernel-2.6.25-0.87.rc3.git4.fc9
fails -> kernel-2.6.25-0.101.rc4.git3.fc9
fails -> kernel-2.6.25-0.105.rc5.fc9

I checked bugzilla but couldn't find any relevant kernel bugs. Should I 
file one or is this already known?

Regards,
   Dennis