From: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
To: Dave Chinner <david@fromorbit.com>
Cc: "rcu@vger.kernel.org" <rcu@vger.kernel.org>,
"linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
hch <hch@lst.de>
Subject: Re: rcu stalls during fstests runs for xfs
Date: Tue, 27 Jan 2026 01:38:24 +0000 [thread overview]
Message-ID: <aXgVljuSfUomyikG@shinmob> (raw)
In-Reply-To: <aXfzNW7cf2ReVDA4@dread.disaster.area>
On Jan 27, 2026 / 10:05, Dave Chinner wrote:
[...]
> IOWs, this looks like some kind of RCU/static key/scheduler
> interaction which may propagate into the block layer if it needs RCU
> synchronisation. Hence it does not appear to have anything to do
> with the filesystem layers, and it is possible the block layer is
> colateral damage, too.
>
> Probably best to hand this over to the core kernel ppl.
Dave, thank you very much for looking in the logs and sharing your views.
I will wait for comments from RCU experts and keep the effort to recreate
the hangs.
next prev parent reply other threads:[~2026-01-27 1:38 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-26 11:30 rcu stalls during fstests runs for xfs Shinichiro Kawasaki
2026-01-26 23:05 ` Dave Chinner
2026-01-27 1:38 ` Shinichiro Kawasaki [this message]
2026-01-28 9:55 ` Kunwu Chan
2026-01-28 16:42 ` Paul E. McKenney
2026-01-29 5:27 ` Shinichiro Kawasaki
2026-01-29 17:46 ` Paul E. McKenney
2026-01-29 23:19 ` Paul E. McKenney
2026-01-30 11:16 ` Shinichiro Kawasaki
2026-02-06 9:33 ` Matthieu Baerts
2026-02-06 10:02 ` Shinichiro Kawasaki
2026-02-06 11:04 ` Matthieu Baerts
2026-02-13 1:26 ` Shinichiro Kawasaki
2026-02-20 19:01 ` Joel Fernandes
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