On Wed, Dec 1, 2010 at 10:23 PM, Mike Snitzer <snitzer@xxxxxxxxxx> wrote: > On Wed, Dec 01 2010 at 3:45pm -0500, > Milan Broz <mbroz@xxxxxxxxxx> wrote: > >> >> On 12/01/2010 08:34 PM, Jon Nelson wrote: >> > Perhaps this is useful: for myself, I found that when I started using >> > 2.6.37rc3 that postgresql starting having a *lot* of problems with >> > corruption. Specifically, I noted zeroed pages, corruption in headers, >> > all sorts of stuff on /newly created/ tables, especially during index >> > creation. I had a fairly high hit rate of failure. I backed off to >> > 2.6.34.7 and have *zero* problems (in fact, prior to 2.6.37rc3, I had >> > never had a corruption issue with postgresql). I ran on 2.6.36 for a >> > few weeks as well, without issue. >> > >> > I am using kcrypt with lvm on top of that, and ext4 on top of that. >> >> With unpatched dmcrypt (IOW with Linus' git)? Then it must be ext4 or >> dm-core problem because there were no patches for dm-crypt... > > Matt and Jon, > > If you'd be up to it: could you try testing your dm-crypt+ext4 > corruption reproducers against the following two 2.6.37-rc commits: > > 1) 1de3e3df917459422cb2aecac440febc8879d410 > then > 2) bd2d0210cf22f2bd0cef72eb97cf94fc7d31d8cc > > Then, depending on results of no corruption for those commits, bonus > points for testing the same commits but with Andi and Milan's latest > dm-crypt cpu scalability patch applied too: > https://patchwork.kernel.org/patch/365542/ > > Thanks! > Mike > Yeah sure, I'll have to set up another testing system (on a separate partition / volume group) for its own so that will take some time, first tests will be run probably in the weekend, thanks for those pointers ! I took a look at git-web - you think 5a87b7a5da250c9be6d757758425dfeaf8ed3179 might be relevant, too ? the others seem rather minor compared to those you posted Afaik last time I run vanilla 2.6.37-rc* (which was probably around rc1) I saw no corruption at all but I'll give it a test-run without the dm-crypt patch anyway Thanks & Regards Matt -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
