HAMMER is looking nice and stable for the release.  I've moved on to

    working through its error handling, getting rid of Debugger() calls

    and assertions in the I/O error path, and adjusting the code so a

    write error forces the mount into read-only mode.
    It's kinda fun.  I'm testing it by taking an external USB2 hard drive

    and mounting it w/ HAMMER, then unplugging it in the middle of a big

    cpdup.  I've found a couple of panics in CAM related to the device

    going away unexpectedly, and stuff like that, which I'm fixing as I

    go.
    I expect to get it working nicely by thursday afternoon and will commit

    and MFC it for 2.0 then.  Hopefully I'll get it to the point where

    I can pop the USB connector in and out without crashing the machine

    or corrupting the HAMMER filesystem.  Mind you, once you pull the drive

    you have to umount -f / remount HAMMER and will lose unflushed file

    data, but the filesystem itself shouldn't become corrupt.  I'm not

    pulling the disk's power, just its USB connector :-)
					-Matt

					Matthew Dillon

					<dillon@backplane.com>

Now that you brought it up -- what would you expect to happen if

you did pull the power plug?