On Mon, Jan 30, 2017 at 04:59:52PM -0500, Brian Foster wrote: > > I reproduced an xfs_wait_buftarg() unmount hang once that looks like a > separate issue (occurs after the test, long after quotaoff has > completed). I haven't reproduced that one again nor the original hang in > 100+ iterations so far. Care to give the following a whirl in your > environment? Thanks. I applied your test patch on top of 4.10-rc4 stock kernel and hit xfs/305 hang at 82nd iteration. I attached the dmesg and sysrq-w log. You can login the same RH internal test host if that's helpful, I left the host running in the hang state. Thanks, Eryu
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