From: Christoph Hellwig <hch@lst.de>
To: Keith Busch <kbusch@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>,
Keith Busch <kbusch@meta.com>,
hch@lst.de, linux-nvme@lists.infradead.org,
linux-block@vger.kernel.org, axboe@kernel.dk
Subject: Re: [PATCHv5 1/2] block: accumulate memory segment gaps per bio
Date: Tue, 11 Nov 2025 08:14:39 +0100 [thread overview]
Message-ID: <20251111071439.GA4240@lst.de> (raw)
In-Reply-To: <aRLAqyRBY6k4pT2M@kbusch-mbp>
On Mon, Nov 10, 2025 at 11:50:51PM -0500, Keith Busch wrote:
> Thanks for the heads up. This is in the path I'd been modifying lately,
> so sounds plausible that I introduced the bug. The information here
> should be enough for me to make progress: it looks like req->bio is NULL
> in your trace, which I did not expect would happen. But it's late here
> too, so look with fresh eyes in the morning.
req->bio should only be NULL for flush requests or passthrough requests
that do not transfer data. None of them should end up in this path.
next prev parent reply other threads:[~2025-11-11 7:14 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-14 15:04 [PATCHv5 0/2] block, nvme: removing virtual boundary mask reliance Keith Busch
2025-10-14 15:04 ` [PATCHv5 1/2] block: accumulate memory segment gaps per bio Keith Busch
2025-10-14 21:18 ` Martin K. Petersen
2025-10-15 4:08 ` Christoph Hellwig
2025-11-11 4:26 ` Matthew Wilcox
2025-11-11 4:50 ` Keith Busch
2025-11-11 7:14 ` Christoph Hellwig [this message]
2025-11-11 9:36 ` Yu Kuai
2025-11-11 9:39 ` Christoph Hellwig
2025-11-11 10:14 ` Yu Kuai
2025-11-11 13:25 ` Keith Busch
2025-11-11 13:40 ` Christoph Hellwig
2025-11-11 13:54 ` Keith Busch
2025-11-11 13:58 ` Christoph Hellwig
2025-11-11 14:03 ` Yu Kuai
2025-10-14 15:04 ` [PATCHv5 2/2] nvme: remove virtual boundary for sgl capable devices Keith Busch
2025-10-14 21:19 ` Martin K. Petersen
2025-11-07 1:03 ` [PATCHv5 0/2] block, nvme: removing virtual boundary mask reliance Keith Busch
2025-11-07 1:12 ` Jens Axboe
2025-11-07 1:12 ` Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251111071439.GA4240@lst.de \
--to=hch@lst.de \
--cc=axboe@kernel.dk \
--cc=kbusch@kernel.org \
--cc=kbusch@meta.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=willy@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox