Hi Ming On 04/17/2018 11:17 PM, Ming Lei wrote: > Looks blktest(block/011) can trigger IO hang easily on NVMe PCI device, > and all are related with nvme_dev_disable(): > > 1) admin queue may be disabled by nvme_dev_disable() from timeout path > during resetting, then reset can't move on > > 2) the nvme_dev_disable() called from nvme_reset_work() may cause double > completion on timed-out request > > So could you share us what your plan is about this patchset?
Regarding to this patchset, it is mainly to fix the dependency between nvme_timeout and nvme_dev_disable, as your can see: nvme_timeout will invoke nvme_dev_disable, and nvme_dev_disable have to depend on nvme_timeout when controller no response. Till now, some parts of the patchset looks bad and seem to have a lot of work need to be done. :) Thanks Jianchao
