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2b1b7e784a
When the io queues setup or tagset allocation failed, ctrl.tagset is NULL. But the scan work will still be queued and executed, then panic comes up due to NULL pointer reference of ctrl.tagset. To fix this, add a new ctrl state NVME_CTRL_ADMIN_ONLY to inidcate only admin queue is live. When non io queues or tagset allocation failed, ctrl enters into this state, scan work will not be started. But async event work and nvme dev ioctl will be still available. This will be helpful to do further investigation and recovery. Suggested-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de> |
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