On 03/14/16 21:13, Marc Haber wrote: > On Mon, Mar 14, 2016 at 01:48:18PM +0100, Holger Hoffstätte wrote: >> did you ever try to clear the free-space cache via -o clear_cache >> on mount? > > This was not asked, and I didn't try. Since this is an encrypted root > filesystem, is it a workable way to add clear_cache to /etc/fstab, > rebuild initramfs and reboot? Or do you recommend using a rescue system? If you can do it via a rescue system that might be easiest, but adding it to fstab and rebooting once has the same effect. Whatever you know how to do safely. >> Give it a try, let it run for a while and then try balancing >> again. > > Do I need to wait for clear_cache to finish, like until I see disk > usage dropping? The cache isn't that big, so you won't see a huge drop. Just use the disk normally for a few minutes, after some time the cache will be written out again. >> _Someone_ is lying to btrfs in terms of device size and/or allocated >> chunks, otherwise you wouldn't get the ENOSPC. > > Which properties does a block device report other than size? Well..at least all you can find in /sys/block/sdX/*. However, reading the other subthread about the mismatching image size I'm now none the wiser what else to suggest. :/ -h -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
