On Tue, Nov 5, 2024 at 3:04 PM Dragan Milivojević <galileo@xxxxxxxxxxx> wrote: > > On Tue, 5 Nov 2024 at 10:58, Haris Iqbal <haris.iqbal@xxxxxxxxx> wrote: > > > > Hi, > > > > I am running fio over a RDMA block device. The server side of this > > mapping is an md-raid0 device, created over 3 md-raid5 devices. > > The md-raid5 devices each are created over 8 block devices. Below is > > how the raid configuration looks (md400, md300, md301 and md302 are > > relevant for this discussion here). > > Try disabling the bitmap as a quick "fix" and see if that helps. Yes. Disabling bitmap does seem to prevent the hang completely. I ran fio for 10 minutes and no hang. Triggered the hang in 10 seconds after reverting back to internal bitmap.
