K 10 svn:author V 3 ian K 8 svn:date V 27 2014-02-15T17:59:32.982057Z K 7 svn:log V 551 Increase the wait time for acquiring the bus from 10 to 250ms. Normally it never needs to wait here at all; waiting is done at the end of the prior command. When doing a crash dump, the normal interrupt mechanism isn't used; instead the interrupt handler is called repeatedly in a polling-like manner. This can subvert hardware-specific drivers and lead to trying to start a new command while the previous command is still busy on the bus. Since the SD spec says the longest a card can take to execute any command is 250ms, use that as a timeout. END