panic: ffs_blkfree: freeing free frag

Doug White dwhite at
Mon Aug 16 10:16:39 PDT 2004

On Mon, 16 Aug 2004, Rostislav Krasny wrote:

> Hello all.
> I just powered the box on, logged in as a root, cvsuped to the today's
> -CURRENT and then I ran:
> cd /usr/obj
> chflags -R noschg *
> rm -rf *
> cd /usr/src
> rehash
> w
> Then I wanted to run 'make buildworld' but before I hit the [Enter] key
> the system is paniced:
> dev = ad0s1f, block = 850900, fs = /usr
> panic: ffs_blkfree: freeing free frag

Running massive deletes and/or file changes while background fsck is
running is known to cause wierd panics. You migth run a full foreground
fsck of that filesystem to clean up any leftovers, however.

Doug White                    |  FreeBSD: The Power to Serve
dwhite at          |

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