6.x loosing record of free space after filesystem fills?
kris at obsecurity.org
Tue Nov 28 12:37:21 PST 2006
On Tue, Nov 28, 2006 at 10:45:59AM -0600, Guy Helmer wrote:
> We're encountering some problems on FreeBSD 6.1 SMP with a number of
> end-user systems where a Postgresql database is growing to the point
> where the filesystem is nearly full or completely runs out of free
> space. After this point, df shows wildly incorrect values for available
> space, sometimes even showing more space available than there allocated
> to the partition (and our systems rely on df to determine when to send
> warnings to end-users that the free disk space is getting low). We've
> found the only way to correct the situation is to take the system down
> to single-user mode and force a non-background fsck on the partition -
> simply rebooting the system does not fix the situation.
> We're going to try setting debug.mpsafevfs to 0 in /boot/loader.conf to
> see if this works around the problem. I've gone through the CVS logs
> for src/sys/ufs/ffs/* but I haven't seen anything that would
> specifically apply to this problem. Has anyone else seen this problem,
> and by chance is it resolved for 6.2?
First I've heard of it. May not be resolved unless a developer can
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