On Thu, Nov 20, 2008 at 12:24:10PM +0100, Reinoud Zandijk wrote: > panic: kernel diagnostic assertion "!cv_has_waiters(&bp->b_done)" failed: > file "../../../../kern/vfs_bio.c", line 1570 There is a waiter on a buffer which has a callout (b_iodone). The waiter will not be awoken by VFS hence the assertion. Andrew