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From: Christoph Hellwig <hch@lst.de>
To: Anton Eidelman <anton.eidelman@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>,
	linux-nvme@lists.infradead.org, kbusch@kernel.org,
	sagi@grimberg.me, axboe@fb.com
Subject: Re: [PATCH] nvme/mpath: fix hang when disk goes live over reconnect
Date: Mon, 4 Oct 2021 18:57:25 +0200	[thread overview]
Message-ID: <20211004165725.GB21511@lst.de> (raw)
In-Reply-To: <20211004164612.GA1475751@anton-latitude>

On Mon, Oct 04, 2021 at 10:46:12AM -0600, Anton Eidelman wrote:
> How do we proceed with this fix?

Please resend with the suggested updates.

> I believe error propagation here is not wanted because:
> 1) A failure to fetch or parse the ANA log should not be considered
>    an error in ctrl initialization.

We must handle error that are due to a controller failing to initialize.

> 2) Such error will not cause problems in teardown.
> 3) The same failure is possible in ANA work and we do not take
>    any action in such case.

Failing in a workqueue is different from failing in the initialization
path.

> 4) Adding support for failure to nvme_start_ctrl() adds complexity
>    and does not look useful due to the above 1-3.
---end quoted text---

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  reply	other threads:[~2021-10-04 16:58 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-18 21:57 Anton Eidelman
2021-09-19 10:19 ` Sagi Grimberg
2021-09-19 23:05   ` Anton Eidelman
2021-09-20  7:55     ` Sagi Grimberg
2021-09-20  6:35 ` Christoph Hellwig
2021-09-20 14:53   ` Anton Eidelman
2021-09-21  7:15     ` Christoph Hellwig
2021-10-04 16:46       ` Anton Eidelman
2021-10-04 16:57         ` Christoph Hellwig [this message]
2021-10-05 12:38           ` Sagi Grimberg
     [not found]             ` <368499da-c117-e8b7-7b1b-46894e1e0b48@grimberg.me>
2021-10-19 15:13               ` Anton Eidelman
2022-03-23  3:55 ` [PATCH v2 0/1] " Anton Eidelman
2022-03-23  3:55   ` [PATCH v2 1/1] " Anton Eidelman
2022-03-23  9:23     ` Sagi Grimberg
2022-03-23 14:45     ` [PATCH v3 0/1] " Anton Eidelman
2022-03-23 14:45       ` [PATCH v3 1/1] " Anton Eidelman
2022-03-23 14:55         ` Sagi Grimberg
2022-03-23 15:22         ` Christoph Hellwig
2022-03-24 19:05           ` [PATCH v4 0/1] " Anton Eidelman
2022-03-24 19:05             ` [PATCH v4 1/1] " Anton Eidelman
2022-03-24 21:06               ` Sagi Grimberg
2022-03-25  6:36               ` Christoph Hellwig

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