From: Keith Busch <kbusch@kernel.org>
To: Chao Shi <coshi036@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>, Christoph Hellwig <hch@lst.de>,
Sagi Grimberg <sagi@grimberg.me>,
Chaitanya Kulkarni <kch@nvidia.com>,
linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
Sungwoo Kim <iam@sung-woo.kim>, Dave Tian <daveti@purdue.edu>,
Weidong Zhu <weizhu@fiu.edu>
Subject: Re: [PATCH] nvme: bound the freeze drain in passthrough commands
Date: Wed, 27 May 2026 09:46:34 -0600 [thread overview]
Message-ID: <ahcR2vy8k2FZAp9D@kbusch-mbp> (raw)
In-Reply-To: <20260527055923.456769-1-coshi036@gmail.com>
On Wed, May 27, 2026 at 01:59:23AM -0400, Chao Shi wrote:
> If a completion is silently dropped or the device hangs, the calling
> task wedges with ctrl->scan_lock and ctrl->subsys->lock held, fanning
> out into hung-task reports on any concurrent open/close/passthru on
> the same controller:
The IO timeout callbacks that nvme drivers provide are supposed to
forcefully reclaim any IO no matter what state the device is in. Is that
not happening for some reason?
prev parent reply other threads:[~2026-05-27 15:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-27 5:59 [PATCH] nvme: bound the freeze drain in passthrough commands Chao Shi
2026-05-27 13:26 ` Christoph Hellwig
2026-05-27 15:46 ` Keith Busch [this message]
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