On Wed, Aug 29, 2012 at 06:42:43PM +0100, Jonathan Tripathy wrote: > On 29/08/2012 18:34, Kent Overstreet wrote: > >On Wed, Aug 29, 2012 at 06:22:30PM +0100, Jonathan Tripathy wrote: > >>On 29/08/2012 13:12, Jonathan Tripathy wrote: > >>>On 29.08.2012 08:03, Kent Overstreet wrote: > >>>>I just went ahead and backed out the problematic change. Haven't even > >>>>tried building the code yet - but if you feel lucky, it's up. I bet it > >>>>fixes it. > >>>Hi Kent, > >>> > >>>I pull down your latest code and did a build. I'm pleased to say > >>>that Windows has now installed. I will do some further > >>>testing/benchmarking to make sure that the install is stable. > >>> > >>>Many thanks for your quick help > >>Hi Kent, > >> > >>A little bad news. With this new build, the spindles are getting > >>thrashed and this is constantly (never stopping) spewing out on my > >>netconsole: > >> > >>[23198.979215] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67230714 4 > >>[23198.979304] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67234814 4 > >>[23198.979393] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67235834 4 > >>[23198.979595] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67276796 3 > >>[23198.979696] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67297276 4 > >>[23198.979791] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67248126 4 > >>[23198.979886] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67284987 3 > >>[23198.979966] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67305471 4 > >>[23198.980215] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67329017 4 > >>[23198.980337] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67323899 4 > >>[23198.980542] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67330047 2 > >>[23198.981707] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67335164 3 > >>[23198.982164] md/raid10:md7: make_request bug: can't convert block > >>across chunks or bigger than 512k 67346429 4 > >> > >>Any ideas? > >Oh hell, I see the problem. That one is not going to be such an easy > >fix. I'm going to have to think about it. > > > >Amusing part is it looks like blocksize = 4k was working around the > >problem... :/ > Ah, ok :) > > Please keep me posted when this is fixed, I'm very keen to see > bcache deployed in our cloud infrastructure :) > > If there is anything I can do to help from a testing standpoint, > please let me know. I had an idea for how to work around it :) (and other potential issues I recently became aware of). More untested code up! -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
