From: "David Wang" <00107082@163.com>
To: "Keith Busch" <kbusch@kernel.org>
Cc: axboe@kernel.dk, hch@lst.de, sagi@grimberg.me,
linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: nvme interrupt counters got reset after suspend/resume
Date: Thu, 20 Mar 2025 00:23:05 +0800 (CST) [thread overview]
Message-ID: <349dba2d.b878.195af373591.Coremail.00107082@163.com> (raw)
In-Reply-To: <Z9rpeIsNlf6SBWi6@kbusch-mbp>
Hi,
At 2025-03-19 23:57:44, "Keith Busch" <kbusch@kernel.org> wrote:
>On Wed, Mar 19, 2025 at 11:39:10PM +0800, David Wang wrote:
>>
>> This does not happend to counters for other interrupts on my system.
>> Not sure whether this is designed explicitly this way, or happended to be this way to make suspend/resume work,
>> or there is some bug behind this.
>
>The nvme driver completely brings down the interrupts on suspend and
>creates new ones on resume. They might have the same numbers and labels
>on the other side of the resume, but they're not from the same original
>allocation that tracks these stats. Hope that helps.
Copy that~! And thanks for clearing things out.
David
prev parent reply other threads:[~2025-03-19 16:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-19 15:39 nvme interrupt counters got reset after suspend/resume David Wang
2025-03-19 15:57 ` Keith Busch
2025-03-19 16:23 ` David Wang [this message]
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