On Mon, Aug 22, 2022 at 3:44 PM Thomas Deutschmann <whissi@xxxxxxxxx> wrote: > > On 2022-08-22 23:52, Song Liu wrote: > > Hmm.. I still cannot repro the hang in my test. I have: > > > > [root@eth50-1 ~]# mount | grep mnt > > /dev/md0 on /root/mnt type ext4 (rw,relatime,stripe=384) > > [root@eth50-1 ~]# lsblk > > NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT > > sr0 11:0 1 1024M 0 rom > > vda 253:0 0 32G 0 disk > > ├─vda1 253:1 0 2G 0 part /boot > > └─vda2 253:2 0 30G 0 part / > > nvme0n1 259:0 0 4G 0 disk > > └─md0 9:0 0 12G 0 raid5 /root/mnt > > nvme2n1 259:1 0 4G 0 disk > > └─md0 9:0 0 12G 0 raid5 /root/mnt > > nvme3n1 259:2 0 4G 0 disk > > └─md0 9:0 0 12G 0 raid5 /root/mnt > > nvme1n1 259:3 0 4G 0 disk > > └─md0 9:0 0 12G 0 raid5 /root/mnt > > > > [root@eth50-1 ~]# history > > 381 fio iou/repro.fio > > 382 fsfreeze --freeze /root/mnt > > 383 fsfreeze --unfreeze /root/mnt > > 384 fio iou/repro.fio > > 385 fsfreeze --freeze /root/mnt > > 386 fsfreeze --unfreeze /root/mnt > > ^^^^^^^^^^^^^^ all works fine. > > > > Did I miss something? > > No :( > > I am currently not testing against the mdraid but this shouldn't matter. > > However, it looks like you don't test on bare metal, do you? > > I tried to test on VMware Workstation 16 myself but VMware's nvme > implementation is currently broken > (https://github.com/vmware/open-vm-tools/issues/579). I am testing with QEMU emulator version 6.2.0. I can also test with bare metal. Thanks, Song