[Btrfs-devel] stacktrace

[Chris Mason]

On Thu, 23 Aug 2007 23:23:56 +1000
"Bron Gondwana" <brong at fastmail.fm> wrote:

> This has happened to me twice now (symptom: offlineimap and
> mutt just freeze - all I have on here are some maildirs and
> the associated offlineimap and mutt state info.
> 
> It's all under "/shared/brong" which is a snapshot taken from
> /shared/default just after it was created, owned by my user
> (brong).
> 
> /shared is a btrfs filesystem, created with v0.6 (I'm using hg,
> but I've updated it since and not rebuilt so I lost the exact
> point at which I built everything, sorry.. 
> 
> I now need to pretty much sync everything and hard reset to
> unlock this.  I can't umount.
> 
> Anyway, hoping that the following may still be of some use.  I
> know full well it's alpha and I can't expect to trust it, which 
> is why there's nothing on there I can't replace with a few
> megabytes of re-downloading.

This should be fixed in v0.7 (I hope).  There's a related problem where
I'm cowing a block in the extent tree at the wrong time, and I'm
testing that fix locally.

-chris