So what you did is, # mount -t aufs -o br:/rw1:/ro1:/ro2 none /aufs # mount -o remount,prepend:/rw0 /aufs # mount -o remount,mod:/rw1=ro /aufs and crashed.Won't you try this patch which produce more detailed debug information at remount time, and send me the debug log?
I apply your patch and repeat situation, netconsole log attached.
netcat.log
Description: Binary data
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