linux-kernel - Re: [PATCH v2 0/7] nvme-pci: support device coredump

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Message-ID: <99ac233a-e8d6-495b-5ec9-f7067fa40c4b@intel.com>
Date:   Tue, 7 May 2019 11:43:56 -0600
From:   "Heitke, Kenneth" <kenneth.heitke@...el.com>
To:     Akinobu Mita <akinobu.mita@...il.com>,
        linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Jens Axboe <axboe@...com>, Sagi Grimberg <sagi@...mberg.me>,
        Keith Busch <keith.busch@...el.com>,
        Minwoo Im <minwoo.im.dev@...il.com>,
        Johannes Berg <johannes@...solutions.net>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v2 0/7] nvme-pci: support device coredump



On 5/7/2019 10:58 AM, Akinobu Mita wrote:
> This enables to capture snapshot of controller information via device
> coredump machanism, and it helps diagnose and debug issues.

s/machanism/mechanism/
> 
> The nvme device coredump is triggered when command timeout occurs, and
> creates the following coredump files.
> 
>   - regs: NVMe controller registers (00h to 4Fh)
>   - sq<qid>: Submission queue
>   - cq<qid>: Completion queue
>   - telemetry-ctrl-log: Telemetry controller-initiated log (if available)
>   - data: Empty