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Date: Thu, 8 Aug 2013 20:59:11 -0400 From: Ed Cashin <ecashin@...aid.com> To: Kent Overstreet <kmo@...erainc.com> CC: "axboe@...nel.dk" <axboe@...nel.dk>, "neilb@...e.de" <neilb@...e.de>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>, "dm-devel@...hat.com" <dm-devel@...hat.com>, "linux-raid@...r.kernel.org" <linux-raid@...r.kernel.org> Subject: Re: [PATCH 04/22] block: Abstract out bvec iterator On Aug 8, 2013, at 8:09 PM, Kent Overstreet wrote: > On Wed, Aug 07, 2013 at 10:04:36PM -0400, Ed Cashin wrote: >> On Aug 7, 2013, at 5:54 PM, Kent Overstreet wrote: >> >>> Immutable biovecs are going to require an explicit iterator. To >>> implement immutable bvecs, a later patch is going to add a bi_bvec_done >>> member to this struct; for now, this patch effectively just renames >>> things. >> >> Hi, Kent Overstreet. Thanks for Cc'ing me and for the promising work. >> >> Were you able to do sanity tests with aoe this time around? Last time, basic I/O was not working with the immutable biovec patches applied. >> >> Here is my 28 June email about my experiences with git://evilpiepirate.org/~kent/linux-bcache.git at that time. It also includes information about creating an easy software-only aoe test environment. >> >> http://thread.gmane.org/gmane.linux.kernel/1505222/focus=1517924 > > Hey, thanks for testing it - sorry, I think I remember seeing that email > last time and got sidetracked before I got around to setting up some > tests. No worries. > I think I've got it working now, it's running the same stress tests I > use for bcache. Here's a fixed patch, I broke the aoe changes out into > their own patch since they were more involved than most of the others: I had added your git tree as a remote and checked out the for-jens branch. This patch conflicts with some of the changes in that patch, so I could use a pointer as to which base this new patch applies to. If it's already in some branch in linux-bcache, I can just use it there, and that's even more convenient. > (I am seeing a bug where it's getting stuck after running stress tests > for awhile, but I can reproduce that without the aoe changes too...) Just so I know what to look for, what does that behavior look like? I/O stops going and procs get stuck in disk sleep, maybe? Thanks. -- Ed Cashin ecashin@...aid.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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