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From: Yi Zhang <yi.zhang@redhat.com>
To: Max Gurtovoy <mgurtovoy@nvidia.com>, Sagi Grimberg <sagi@grimberg.me>
Cc: Haakon Bugge <haakon.bugge@oracle.com>,
	Max Gurtovoy <maxg@mellanox.com>,
	"open list:NVM EXPRESS DRIVER" <linux-nvme@lists.infradead.org>,
	OFED mailing list <linux-rdma@vger.kernel.org>
Subject: Re: [bug report] NVMe/IB: reset_controller need more than 1min
Date: Mon, 14 Feb 2022 17:47:40 +0800	[thread overview]
Message-ID: <CAHj4cs_ta5WR7j0qvHyr1tSCR-U7=svY5j8Hctd7YUMNcGXsaA@mail.gmail.com> (raw)
In-Reply-To: <4BB6D957-6C18-4E58-A622-0880007ECD9F@oracle.com>

Hi Sagi/Max
Here are more findings with the bisect:

The time for reset operation changed from 3s[1] to 12s[2] after
commit[3], and after commit[4], the reset operation timeout at the
second reset[5], let me know if you need any testing for it, thanks.

[1]
# time nvme reset /dev/nvme0

real 0m3.049s
user 0m0.000s
sys 0m0.006s
[2]
# time nvme reset /dev/nvme0

real 0m12.498s
user 0m0.000s
sys 0m0.006s
[3]
commit 5ec5d3bddc6b912b7de9e3eb6c1f2397faeca2bc (HEAD)
Author: Max Gurtovoy <maxg@mellanox.com>
Date:   Tue May 19 17:05:56 2020 +0300

    nvme-rdma: add metadata/T10-PI support

[4]
commit a70b81bd4d9d2d6c05cfe6ef2a10bccc2e04357a (HEAD)
Author: Hannes Reinecke <hare@suse.de>
Date:   Fri Apr 16 13:46:20 2021 +0200

    nvme: sanitize KATO setting-

[5]
# time nvme reset /dev/nvme0

real 0m12.628s
user 0m0.000s
sys 0m0.006s
# time nvme reset /dev/nvme0

real 1m15.617s
user 0m0.000s
sys 0m0.006s
#dmesg
[ 1866.068377] nvme nvme0: creating 40 I/O queues.
[ 1870.367851] nvme nvme0: mapped 40/0/0 default/read/poll queues.
[ 1870.370949] nvme nvme0: new ctrl: NQN "testnqn", addr 172.31.0.202:4420
[ 1930.981494] nvme nvme0: resetting controller
[ 1939.316131] nvme nvme0: creating 40 I/O queues.
[ 1943.605427] nvme nvme0: mapped 40/0/0 default/read/poll queues.
[ 1953.708327] nvme nvme0: resetting controller
[ 2024.985591] nvme nvme0: I/O 7 QID 0 timeout
[ 2024.990979] nvme nvme0: Property Set error: 881, offset 0x14
[ 2025.031069] nvme nvme0: creating 40 I/O queues.
[ 2029.321798] nvme nvme0: mapped 40/0/0 default/read/poll queues.


  reply	other threads:[~2022-02-14 10:02 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21 16:12 [bug report] NVMe/IB: reset_controller need more than 1min Yi Zhang
2021-05-21 16:12 ` Yi Zhang
2021-05-21 18:00 ` Sagi Grimberg
2021-05-21 18:00   ` Sagi Grimberg
2021-05-22  4:27   ` Yi Zhang
2021-05-22  4:27     ` Yi Zhang
2021-06-23 10:01     ` Yi Zhang
2021-06-23 10:01       ` Yi Zhang
2021-06-23 21:32       ` Sagi Grimberg
2021-06-23 21:32         ` Sagi Grimberg
2021-06-24 16:14         ` Yi Zhang
2021-06-24 16:14           ` Yi Zhang
2021-12-11  3:01           ` Yi Zhang
2021-12-12  9:45             ` Sagi Grimberg
2021-12-13  6:12               ` Yi Zhang
2021-12-13  9:04                 ` Sagi Grimberg
2021-12-13 17:05                   ` Yi Zhang
2021-12-14 10:39                     ` Sagi Grimberg
2021-12-14 12:00                       ` Max Gurtovoy
2021-12-15  1:15                         ` Yi Zhang
2021-12-15 12:10                           ` Max Gurtovoy
2021-12-16  2:18                             ` Yi Zhang
2021-12-16 13:21                               ` Max Gurtovoy
2021-12-16 16:32                                 ` Yi Zhang
2021-12-16 17:33                                   ` Haakon Bugge
2021-12-17  7:03                                     ` Yi Zhang
2021-12-17 11:19                                       ` Haakon Bugge
2022-02-14  9:47                                         ` Yi Zhang [this message]
2022-02-14 11:00                                           ` Chaitanya Kulkarni
2022-02-14 11:32                                           ` Sagi Grimberg
2022-02-14 12:11                                             ` Max Gurtovoy
2022-02-15 13:52                                               ` Yi Zhang
2022-02-15 14:30                                                 ` Max Gurtovoy
2022-02-21 10:00                                                   ` Yi Zhang
2022-02-23 10:04                                                     ` Max Gurtovoy
2022-02-23 10:30                                                       ` Sagi Grimberg
2022-02-23 11:20                                                         ` Max Gurtovoy
2022-03-01  0:06                                                       ` Yi Zhang
2022-03-16 15:16                                                         ` Sagi Grimberg
2022-03-19  7:29                                                           ` Yi Zhang
2022-03-20 10:50                                                             ` Max Gurtovoy
2022-03-20 13:03                                                               ` Sagi Grimberg
2022-03-20 15:11                                                                 ` Max Gurtovoy
2022-03-21  9:28                                                                   ` Sagi Grimberg
2022-03-21 12:11                                                                     ` Max Gurtovoy

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