On Sun, Feb 22, 2009 at 10:12:05PM +0000, David Holland wrote: > Since this window is a couple minutes, if the kernel from that window > turns out to be broken, one is hosed - one can use an earlier kernel > with broken wapbl, which might or might not cause problems, or use a > later kernel and hope nothing breaks, which with -current is a gamble. Valid concern, but there is a third way: use neither softdep nor wapbl, while dealing with migration, upgrades and potentially broken kernels. It's the same argument you're making - opening the window between softdep and wapbl, rather than switching fstab directly, but entirely under user control. In fact, this could be the default result, if a now unknown "softdep" mount arg in fstab was a NOP or warning, rather than an error (not sure what the current behaviour is). -- Dan.
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