From: Keith Busch <kbusch@kernel.org>
To: Tokunori Ikegami <ikegami.t@gmail.com>
Cc: Ming Lei <tom.leiming@gmail.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>
Subject: Re: [PATCH] block, nvme: Increase max segments parameter setting value
Date: Mon, 30 Mar 2020 07:53:23 -0600 [thread overview]
Message-ID: <20200330135323.GA32604@C02WT3WMHTD6> (raw)
In-Reply-To: <cc1534d1-34f6-ffdb-27bd-73590ab30437@gmail.com>
On Mon, Mar 30, 2020 at 06:15:41PM +0900, Tokunori Ikegami wrote:
> But there is a case that the command data length is limited by 512KB.
> I am not sure about this condition so needed more investigation.
Your memory is too fragmented. You need more physically contiguous
memory or you'll hit the segment limit before you hit the length
limit. Try allocating huge pages.
next prev parent reply other threads:[~2020-03-30 13:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-23 18:23 [PATCH] block, nvme: Increase max segments parameter setting value Tokunori Ikegami
2020-03-23 19:14 ` Chaitanya Kulkarni
2020-03-23 23:09 ` Tokunori Ikegami
2020-03-24 0:02 ` Keith Busch
2020-03-24 16:51 ` Tokunori Ikegami
2020-03-27 17:50 ` Tokunori Ikegami
2020-03-27 18:18 ` Keith Busch
2020-03-28 2:11 ` Ming Lei
2020-03-28 3:13 ` Keith Busch
2020-03-28 8:28 ` Ming Lei
2020-03-28 12:57 ` Tokunori Ikegami
2020-03-29 3:01 ` Ming Lei
2020-03-30 9:15 ` Tokunori Ikegami
2020-03-30 13:53 ` Keith Busch [this message]
2020-03-31 15:24 ` Tokunori Ikegami
2020-03-31 14:13 ` Joshi
2020-03-31 15:37 ` Tokunori Ikegami
2020-03-24 7:16 ` Hannes Reinecke
2020-03-24 17:17 ` Tokunori Ikegami
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