public inbox for linux-block@vger.kernel.org
 help / color / mirror / Atom feed
From: Tejun Heo <tj@kernel.org>
To: Nilay Shroff <nilay@linux.ibm.com>
Cc: Jakub Kicinski <kuba@kernel.org>, Jens Axboe <axboe@kernel.dk>,
	cgroups@vger.kernel.org, linux-block@vger.kernel.org,
	linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	Ming Lei <ming.lei@redhat.com>
Subject: Re: [RESEND] Circular locking dependency involving, elevator_lock, rq_qos_mutex and pcpu_alloc_mutex
Date: Thu, 1 May 2025 07:00:34 -1000	[thread overview]
Message-ID: <aBOosuedqt15xS1K@slm.duckdns.org> (raw)
In-Reply-To: <16ed195d-7f26-41bb-86d6-ea961b3fa691@linux.ibm.com>

Hello,

On Tue, Apr 08, 2025 at 12:32:50PM +0530, Nilay Shroff wrote:
> Thanks for the report! This is now a known issue. And we're currently working on
> it to cut dependency of q->io_lockdep_map (or queue freeze-lock) on q->elevator_lock. 
> Please see below :https://lore.kernel.org/linux-block/67e6b425.050a0220.2f068f.007b.GAE@google.com/
> https://lore.kernel.org/all/20250403105402.1334206-1-ming.lei@redhat.com/

Any progress on this? The last activity on the threads seems to be back on
Apr 10th and we're getting close to rc5. If we need to revert, I think it's
about time to decide.

Thanks.

-- 
tejun

  reply	other threads:[~2025-05-01 17:00 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Z_QjW7zJLsuO0xp6@slm.duckdns.org>
2025-04-07 19:13 ` [RESEND] Circular locking dependency involving, elevator_lock, rq_qos_mutex and pcpu_alloc_mutex Tejun Heo
2025-04-08  7:02   ` Nilay Shroff
2025-05-01 17:00     ` Tejun Heo [this message]
2025-05-01 17:20       ` Nilay Shroff

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=aBOosuedqt15xS1K@slm.duckdns.org \
    --to=tj@kernel.org \
    --cc=axboe@kernel.dk \
    --cc=cgroups@vger.kernel.org \
    --cc=hch@lst.de \
    --cc=kuba@kernel.org \
    --cc=linux-block@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=ming.lei@redhat.com \
    --cc=nilay@linux.ibm.com \
    /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