From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: Mike Snitzer <msnitzer@redhat.com>,
Nikos Tsironis <ntsironis@arrikto.com>,
Scott Wood <swood@redhat.com>,
Ilias Tsitsimpis <iliastsi@arrikto.com>,
dm-devel@redhat.com, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, Daniel Wagner <dwagner@suse.de>,
linux-rt-users@vger.kernel.org, tglx@linutronix.de
Subject: Re: [PATCH RT 1/2 v2] dm-snapshot: fix crash with the realtime kernel
Date: Tue, 19 Nov 2019 09:48:39 +0100 [thread overview]
Message-ID: <20191119084839.dvzfettd6vbvqd4w@linutronix.de> (raw)
In-Reply-To: <alpine.LRH.2.02.1911121057490.12815@file01.intranet.prod.int.rdu2.redhat.com>
On 2019-11-12 11:09:51 [-0500], Mikulas Patocka wrote:
> Snapshot doesn't work with realtime kernels since the commit f79ae415b64c.
> hlist_bl is implemented as a raw spinlock and the code takes two non-raw
> spinlocks while holding hlist_bl (non-raw spinlocks are blocking mutexes
> in the realtime kernel).
this series is still on the list of things for me to look at…
Sebastian
next prev parent reply other threads:[~2019-11-19 8:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-12 16:09 [PATCH RT 1/2 v2] dm-snapshot: fix crash with the realtime kernel Mikulas Patocka
2019-11-13 9:20 ` Nikos Tsironis
2019-11-19 8:48 ` Sebastian Andrzej Siewior [this message]
2019-11-25 17:25 ` Sebastian Andrzej Siewior
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