Messages in this thread | | | Date | Mon, 9 Jun 2014 18:40:53 +0800 | Subject | Re: [PATCH v6] NVMe: conversion to blk-mq | From | Ming Lei <> |
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On Mon, Jun 9, 2014 at 3:53 PM, Ming Lei <tom.leiming@gmail.com> > > After pulling from your tree, the problem still persists. > > I test nvme over qemu, and both linus/next tree can > work well with qemu nvme.
One problem I found is that rq->start_time isn't set after you cleared IO_STAT intentionally, then the request can't be requeued any more. Once the request can be requeued, the problem becomes req hanging.
The root cause is that device returns NVME_INTERNAL_DEV_ERROR(0x6) with your conversion patch.
Thanks, -- Ming Lei
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