On Fri, Jun 19 2009, Zhang, Yanmin wrote: > > > > Sorry I should have made that more clear when posting v11. This patch > > > > wont fully solve the problem, however the v11 patch series should. So if > > > > you test with that, hopefully all soft hangs should be gone. > > > Ok. I will start new testing against V11. I also add some debugging codes into > > > V11. > > > > Great, thanks! There's a small issue with v11 that you should be aware > > of. The test for bdi_add_default_flusher_task() was inverted. I'm > > attaching a diff at the end. The interesting bit is the 2nd hunk of > > backing-dev.c, the others are just a cleanup. > Jens, > > I did entensive testing with fio (especially the aio randread which triggers > the hang)/ffsb and a couple of other testing and didn't hit the hang issue. > So V11 does fix the issue. Great! > From performance point of view, there is no big difference than old versions. That's fine too, it's only been bug fixes the last few revisions. I'll tag a v12 with the small fix. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
