On Thu, Oct 11, 2012 at 12:35:48PM -0600, Stefan Priebe wrote: > Hello, > > on i've seen the following backtrace a lot on 3.6.1: > [ 2231.644332] use_block_rsv: 1451 callbacks suppressed > [ 2231.645249] btrfs: block rsv returned -28
Yeah this is the last deep dark corner of ENOSPC, we don't quite hold enough reserved to handle deleting lots of csums. Technically this is supposed to be taken care of by ye olde global block rsv, but in some cases it's not enough. On the bright side if you are just seeing the warnings then we're able to find space somewhere and you are a-ok, but it is kind of annoying. Once I finish my fsync stuff I'll go back to this problem and try and figure out a real solution. Thanks, Josef -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
