On Wed, Mar 04, 2009 at 01:50:53PM -0500, Josef Bacik wrote: > On Wed, Mar 04, 2009 at 06:06:19PM +0000, Hugo Mills wrote: > > Last night, this event jammed up a good chunk of my server: > > > > Mar 4 01:51:36 vlad kernel: btrfs searching for 1716224 bytes, num_bytes > > 1716224, loop 2, allowed_alloc 1 > > Mar 4 01:51:36 vlad kernel: btrfs searching for 860160 bytes, num_bytes > > 860160, loop 2, allowed_alloc 1 > > [lots of this...] > > Mar 4 01:55:52 vlad kernel: btrfs searching for 4096 bytes, num_bytes > > 4096, loop 2, allowed_alloc 1 > > Mar 4 01:55:52 vlad kernel: btrfs allocation failed flags 1, wanted 4096 > > Mar 4 01:55:52 vlad kernel: space_info has 0 free, is full > > Mar 4 01:55:52 vlad kernel: block group 12582912 has 8388608 bytes, > > 8388608 used 0 pinned 0 reserved > > Mar 4 01:55:52 vlad kernel: 0 blocks of free space at or bigger than bytes > > is > > Mar 4 01:55:52 vlad kernel: block group 1103101952 has 1073741824 bytes, > > 1073741824 used 0 pinned 0 reserved > > Mar 4 01:55:52 vlad kernel: 0 blocks of free space at or bigger than bytes > > is > > [30 more lines of this] > > So yeah thats expected, you ran out of space. The key thing is this > > Mar 4 01:55:52 vlad kernel: space_info has 0 free, is full > > If space_info has 0 free and is full, then there is no space to allocate for > it > and its completely used. I'd recommend switching to the -rc7 kernel since > that > has things in place to keep this from happening as often. Thanks,
I'll do that. However, what's confusing me is that the filesystem was reported as less than half full (17/41GiB used) at the time that it decided it had no space. Is there any likely explanation for that behaviour? I've used btrfsctl to resize it online several times: shrink by 1GiB, then enlarge by 12, 10, 10GiB. Might that have been a factor? Hugo. -- === Hugo Mills: h...@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- How do you become King? You stand in the marketplace and --- announce you're going to tax everyone. If you get out alive, you're King.
signature.asc
Description: Digital signature
