From: Damien Le Moal <dlemoal@kernel.org>
To: Bart Van Assche <bvanassche@acm.org>, Jens Axboe <axboe@kernel.dk>
Cc: "Christoph Hellwig" <hch@lst.de>,
"Marco Elver" <elver@google.com>,
linux-block@vger.kernel.org,
"Christoph Böhmwalder" <christoph.boehmwalder@linbit.com>,
"Andreas Gruenbacher" <agruen@linbit.com>,
"Philipp Reisner" <philipp.reisner@linbit.com>,
"Lars Ellenberg" <lars.ellenberg@linbit.com>,
"Nathan Chancellor" <nathan@kernel.org>
Subject: Re: [PATCH 01/14] drbd: Balance RCU calls in drbd_adm_dump_devices()
Date: Thu, 5 Mar 2026 05:25:03 +0900 [thread overview]
Message-ID: <8650044e-595d-4058-9b67-25cc545bc302@kernel.org> (raw)
In-Reply-To: <20260304194843.760669-2-bvanassche@acm.org>
On 3/5/26 04:48, Bart Van Assche wrote:
> Make drbd_adm_dump_devices() call rcu_read_lock() before
> rcu_read_unlock() is called. This has been detected by the Clang
> thread-safety analyzer. Compile-tested only.
>
> Tested-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
> Cc: Andreas Gruenbacher <agruen@linbit.com>
> Fixes: a55bbd375d18 ("drbd: Backport the "status" command")
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>
This probably should be sent independently of this series and immediately as
this look like a serious bug.
--
Damien Le Moal
Western Digital Research
next prev parent reply other threads:[~2026-03-04 20:25 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-04 19:48 [PATCH 00/14] Enable lock context analysis Bart Van Assche
2026-03-04 19:48 ` [PATCH 01/14] drbd: Balance RCU calls in drbd_adm_dump_devices() Bart Van Assche
2026-03-04 20:25 ` Damien Le Moal [this message]
2026-03-04 20:59 ` Bart Van Assche
2026-03-04 19:48 ` [PATCH 02/14] blk-ioc: Prepare for enabling thread-safety analysis Bart Van Assche
2026-03-05 10:10 ` Jan Kara
2026-03-05 12:46 ` Bart Van Assche
2026-03-05 13:18 ` Marco Elver
2026-03-05 14:35 ` Bart Van Assche
2026-03-05 20:30 ` Marco Elver
2026-03-04 19:48 ` [PATCH 03/14] block: Make the lock context annotations compatible with Clang Bart Van Assche
2026-03-04 20:03 ` Tejun Heo
2026-03-04 20:29 ` Bart Van Assche
2026-03-04 20:58 ` Tejun Heo
2026-03-04 21:34 ` Bart Van Assche
2026-03-04 21:45 ` Tejun Heo
2026-03-04 21:46 ` Tejun Heo
2026-03-04 19:48 ` [PATCH 04/14] aoe: Add a lock context annotation Bart Van Assche
2026-03-04 19:48 ` [PATCH 05/14] drbd: Make the lock context annotations compatible with Clang Bart Van Assche
2026-03-09 10:08 ` Christoph Böhmwalder
2026-03-09 23:15 ` Bart Van Assche
2026-03-11 20:42 ` Christoph Böhmwalder
2026-03-04 19:48 ` [PATCH 06/14] loop: Add lock context annotations Bart Van Assche
2026-03-04 19:48 ` [PATCH 07/14] nbd: " Bart Van Assche
2026-03-04 19:48 ` [PATCH 08/14] null_blk: Add more " Bart Van Assche
2026-03-04 19:48 ` [PATCH 09/14] rbd: Add " Bart Van Assche
2026-03-04 19:48 ` [PATCH 10/14] rnbd: Add more " Bart Van Assche
2026-03-06 13:09 ` Marco Elver
2026-03-06 14:11 ` Bart Van Assche
2026-03-04 19:48 ` [PATCH 11/14] ublk: Fix the " Bart Van Assche
2026-03-04 20:43 ` Caleb Sander Mateos
2026-03-04 20:55 ` Bart Van Assche
2026-03-04 21:03 ` Caleb Sander Mateos
2026-03-04 21:36 ` Bart Van Assche
2026-03-04 19:48 ` [PATCH 12/14] zloop: Add a " Bart Van Assche
2026-03-04 19:48 ` [PATCH 13/14] zram: Add " Bart Van Assche
2026-03-05 1:23 ` Sergey Senozhatsky
2026-03-04 19:48 ` [PATCH 14/14] block: Enable lock context analysis for all block drivers Bart Van Assche
2026-03-05 1:33 ` Sergey Senozhatsky
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