On Fri, 24 Jan 2003, David Schultz wrote: > Thus spake Greg Lehey <[EMAIL PROTECTED]>: > > I've been thinking about what happened, and I have a possibility: the > > session before shutdown included a lot of writing to that file system, > > and I did a shutdown -p. It's possible that the shutdown powered off > > the system before the disk had flushed its cache. For the moment I'm > > avoiding shutdown -p, but when I get home I'll try to provoke it > > again. > > FreeBSD's ``fix'' for this problem is the same as Windows 98's. > Specifically, there is a 5-second delay (tuneable: > kern.shutdown.poweroff_delay) after all buffers are flushed but > before the power is cut. Maybe we ought to be sending FLUSH > CACHE commands to all drives and waiting for them to finish.
da(4) does a SYNC CACHE (see daclose() and dashutdown()). -Nate To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
