On Fri, Jul 27, 2018 at 11:47 PM, Josef Bacik <josef@xxxxxxxxxxxxxx> wrote: > On Sun, Jul 22, 2018 at 03:28:05PM +0800, Ming Lei wrote: >> On Sun, Jul 22, 2018 at 02:15:38AM +0000, Josef Bacik wrote: >> > Yup I sent a patch for this on Thursday, sorry about that, >> > >> >> I just applied the patch of 'blk-rq-qos: make depth comparisons unsigned', >> looks the same IO hang can be triggered too. > > Ok I'm back from vacation and I'm trying to reproduce but it's not happening for > me. What testing infrastructure is this? blktests and xfstests don't have a > sanity/ in their test suites. I'm wondering if there's something else about the > test that I'm missing. Thanks, As I mentioned, The following IO hang is triggered on dbench test on xfs/usb-storage: dbench -t 20 -s 64 thanks, Ming Lei