On 07/29/2016 03:14 PM, Omar Sandoval wrote:
On Fri, Jul 29, 2016 at 12:11:53PM -0700, Omar Sandoval wrote:
On Fri, Jul 29, 2016 at 08:40:26PM +0200, Stefan Priebe - Profihost AG wrote:
Dear list,
i'm seeing btrfs no space messages frequently on big filesystems (> 30TB).
In all cases i'm getting a trace like this one a space_info warning.
(since commit [1]). Could someone please be so kind and help me
debugging / fixing this bug? I'm using space_cache=v2 on all those systems.
Hm, so I think this indicates a bug in space accounting somewhere else
rather than the free space tree itself. I haven't debugged one of these
issues before, I'll see if I can reproduce it. Cc'ing Josef, too.
I should've asked, what sort of filesystem activity triggers this?
Chris just fixed this I think, try his next branch from his git tree
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git
and see if it still happens. Thanks,
Josef
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