On Mon 26-10-20 10:26:26, Qian Cai wrote: > On Mon, 2020-10-26 at 07:55 -0600, Jens Axboe wrote: > > I've tried to reproduce this as well, to no avail. Qian, could you perhaps > > detail the setup? What kind of storage, kernel config, compiler, etc. > > > > So far I have only been able to reproduce on this Intel platform: > > HPE DL560 gen10 > Intel(R) Xeon(R) Gold 6154 CPU @ 3.00GHz > 131072 MB memory, 1000 GB disk space (smartpqi nvme) Did you try running with the debug patch Matthew sent? Any results? Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR