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From: Sagi Grimberg <sagi@grimberg.me>
To: James Smart <james.smart@broadcom.com>,
	Israel Rukshin <israelr@mellanox.com>,
	Linux-nvme <linux-nvme@lists.infradead.org>,
	Christoph Hellwig <hch@lst.de>
Cc: Shlomi Nimrodi <shlomin@mellanox.com>, Max Gurtovoy <maxg@mellanox.com>
Subject: Re: [PATCH 5/7] nvme: Fix controller creation races with teardown flow
Date: Thu, 20 Aug 2020 17:28:27 -0700	[thread overview]
Message-ID: <53f22e11-057b-2db4-3511-95e7a9cc9c56@grimberg.me> (raw)
In-Reply-To: <fad9c553-28cd-a40c-1a92-6e36fb7ad383@broadcom.com>


> FYI - I've hit a scenario with this patch, where if the device starts 
> rejecting the initial connections or they continuously hit a failure - 
> we're forced to wait ctrl_loss_tmo before it goes away. We can't 
> forcibly delete the controller via sysfs.  This shouldn't be possible.

The user should always be allowed to get rid of the controller. We
probably need to fix that.

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  reply	other threads:[~2020-08-21  0:28 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-24 15:29 [PATCH 0/7 V3] nvme: Fixes for deleting a ctrl before it was created Israel Rukshin
2020-03-24 15:29 ` [PATCH 1/7] nvme: Remove unused return code from nvme_delete_ctrl_sync Israel Rukshin
2020-03-24 15:29 ` [PATCH 2/7] nvme-pci: Re-order nvme_pci_free_ctrl Israel Rukshin
2020-03-24 15:42   ` Christoph Hellwig
2020-03-24 15:29 ` [PATCH 3/7] nvme: Fix ctrl use-after-free during sysfs deletion Israel Rukshin
2020-03-24 15:42   ` Christoph Hellwig
2020-03-24 15:29 ` [PATCH 4/7] nvme: Make nvme_uninit_ctrl symmetric to nvme_init_ctrl Israel Rukshin
2020-03-24 15:42   ` Christoph Hellwig
2020-03-24 15:29 ` [PATCH 5/7] nvme: Fix controller creation races with teardown flow Israel Rukshin
2020-08-19 23:16   ` James Smart
2020-08-21  0:28     ` Sagi Grimberg [this message]
2020-03-24 15:29 ` [PATCH 6/7] nvme-rdma: Add warning on state change failure at nvme_rdma_setup_ctrl Israel Rukshin
2020-03-25  0:19   ` Sagi Grimberg
2020-03-25 10:07     ` Israel Rukshin
2020-03-24 15:29 ` [PATCH 7/7] nvme-tcp: Add warning on state change failure at nvme_tcp_setup_ctrl Israel Rukshin
2020-03-24 16:17 ` [PATCH 0/7 V3] nvme: Fixes for deleting a ctrl before it was created Keith Busch

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