Root fs full -> free space always below 0

[Peter Schuller]

Hello,

so during a portupgrade on my laptop the root fs, with soft updates enabled, 
became full. So I removed a bunch of stuff to make a few gigs available. I 
checked and df reported more than a gig of free space - so I re-ran 
portupgrade.

Then I noticed it was full again, with df showing a negative amount of free 
space.

I removed even more stuff, and rebooted just incase there were more blocks to 
be freed.

After the reboot df showed a negative amount of space again. So I removed even 
more data (rm -rf /usr/ports/distfiles) and now I had 115 meg free df 
claimed. I then re-ran df in quick succession a few times and watched 
diskspace rapidly decrease to a negative 600 meg or so (note: the decrease 
was perhaps 150 meg/second, so it cannot have been a process writing data to 
disk in the background).

After a couple more reboots and a manual fsck in single user mode I still have 
the same problem (on both CURRENT and 5.2.1-RELEASE kernels).

What to do?

-- 
/ Peter Schuller, InfiDyne Technologies HB

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