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Message-ID: <20101209201359.GG2921@thunk.org> Date: Thu, 9 Dec 2010 15:13:59 -0500 From: Ted Ts'o <tytso@....edu> To: Jon Nelson <jnelson@...poni.net> Cc: Mike Snitzer <snitzer@...hat.com>, Chris Mason <chris.mason@...cle.com>, Matt <jackdachef@...il.com>, Milan Broz <mbroz@...hat.com>, Andi Kleen <andi@...stfloor.org>, linux-btrfs <linux-btrfs@...r.kernel.org>, dm-devel <dm-devel@...hat.com>, Linux Kernel <linux-kernel@...r.kernel.org>, htd <htd@...cy-poultry.org>, htejun@...il.com, linux-ext4@...r.kernel.org Subject: Re: hunt for 2.6.37 dm-crypt+ext4 corruption? (was: Re: dm-crypt barrier support is effective) On Thu, Dec 09, 2010 at 12:10:58PM -0600, Jon Nelson wrote: > > You should be OK, there. Are you using encryption or no? > I had difficulty replicating the issue without encryption. Yes, I'm using encryption. LUKS with aes-xts-plain-sha256, and then LVM on top of LUKS. > > If you can point out how to query pgsql_tmp (I'm using a completely > > default postgres install), that would be helpful, but I don't think it > > would be going anywhere else. > > Normally it's /var/lib/pgsql/data/pgsql_tmp (or > /var/lib/postgres/data/pgsql_tmp in your case). By placing > /var/lib/{postgresql,pgsql}/data on the LUKS + ext4 volume, on both > openSUSE 11.3 and Kubuntu, I was able to replicate the problem easily, > in VirtualBox. I can give qemu a try. In both cases I was using a > 2.6.37x kernel. Ah, I'm not using virtualization. I'm running on a X410 laptop, on raw hardware. Perhaps virtualization slows things down enough that it triggers? Or maybe you're running with a more constrained memory than I? How much memory do you have configured in your VM? - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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