Re: btrfs: block rsv returned -28

On Fri, Feb 24, 2012 at 8:26 PM, Christian Robert
[off-list ref] wrote:

Hi,

I ran a quite heavy script who create 10,000 subvolumes and then delete
thoses 10,000 subvolumes.

No problems in the "create" part, but at the "delete" part
I got several traceback from the kernel:

[snip]

and finally the partition cannot be unmounted and I had to reboot.

well, it's probably not that important, who the hell will be deleting 10,000
subvolumes
in a 2 minutes timeframe ?

Deletion works in the background, and involves a walk over the
contents being deleted.  I'm fairly sure that unmounting blocks on the
completion of that background process, which could take quite some
time in this case.