| To: | "Darrick J. Wong" <darrick.wong@xxxxxxxxxx> |
|---|---|
| Subject: | Re: reflink log reservations |
| From: | Christoph Hellwig <hch@xxxxxx> |
| Date: | Tue, 9 Feb 2016 17:31:30 +0100 |
| Cc: | xfs@xxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <20160204180551.GB27899@xxxxxxxxxxxxxxxx> |
| References: | <20160204074617.GB20496@xxxxxx> <20160204081620.GL20038@xxxxxxxxxxxxxxxx> <20160204133133.GA28701@xxxxxx> <20160204180551.GB27899@xxxxxxxxxxxxxxxx> |
| User-agent: | Mutt/1.5.17 (2007-11-01) |
I've still seen the assert a couple of times with the fix, and with yesterdays tree update they are back reproducibly (always in generic/168 over NFS). I suspect the problem is that xfs_refcountbt_alloc_block fully recurses into the allocator and thus could basically double the log reservation. |
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